LIBRUS.PL Librus.pl - Systemy informatyczne dla edukacji


librus.pl website information.

librus.pl website servers are located in United States and are responding from following IP address 104.20.129.44. Check the full list of most visited websites located in United States.

librus.pl domain name is registered by .PL top-level domain registry. See the other sites registred in .PL domain zone.

Following name servers are specified for librus.pl domain:

  • henry.ns.cloudflare.com
  • tina.ns.cloudflare.com

and probably website librus.pl is hosted by cloudflare.com web hosting company. Check the complete list of other most popular websites hosted by cloudflare.com hosting company.

According to Alexa traffic rank the highest website librus.pl position was 1076 (in the world). The lowest Alexa rank position was 142175. Now website librus.pl ranked in Alexa database as number 1500 (in the world).

Website librus.pl Desktop speed measurement score (56/100) is better than the results of 27.65% of other sites shows that the page desktop performance can be improved.

librus.pl Mobile usability score (96/100) is better than the results of 60.6% of other sites and means that the page is mobile-friendly.

Mobile speed measurement score of librus.pl (41/100) is better than the results of 16.55% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

Weekly Rank Report

DateRankChange
Oct-19-2019 1,50092
Oct-18-2019 1,592-340
Oct-17-2019 1,252902
Oct-16-2019 2,154-328
Oct-15-2019 1,826891
Oct-14-2019 2,717-934
Oct-13-2019 1,783-349

Advertisement

librus.pl Rank History

Alexa can identify the popularity of a website as well as its competitors. It is important for website owners and bloggers to know their Alexa ranking because it shows how many visitors have viewed their web page. It gives them a clear idea of how popular their website is on the internet and the ranking of their competitors.


librus.pl whois

WHOIS is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system, but is also used for a wider range of other information.


DOMAIN NAME: librus.pl
registrant type: organization
nameservers: ns1.iq.pl. [86.111.241.10]
ns2.iq.pl. [86.111.242.10]
ns3.iq.pl. [86.111.243.10]
created: 2002.09.14 13:00:00
last modified: 2018.05.23 21:55:31
renewal date: 2018.09.13 14:00:00

no option

dnssec: Unsigned

REGISTRAR:
Alphanet sp. z o.o.
ul. Małobądzka 4A
41-214 Sosnowiec
+48.32 4416346
domeny@alpha.pl

WHOIS database responses: http://www.dns.pl/english/opiskomunikatow_en.html

WHOIS displays data with a delay not exceeding 15 minutes in relation to the .pl Registry system
Registrant data available at http://dns.pl/cgi-bin/en_whois.pl

librus.pl server information

Servers Location

librus.pl desktop page speed rank

Last tested: 2017-11-06


Desktop Speed Bad
56/100

librus.pl Desktop Speed Test Quick Summary


priority - 49 Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

https://cdn.syndication.twimg.com/widgets/timeline…_limit=100&tz=GMT-0800 (5 minutes)
https://syndication.twitter.com/settings (10 minutes)
https://maps.googleapis.com/maps/api/js?callback=initMap (30 minutes)
https://platform.twitter.com/widgets.js (30 minutes)
https://ssl.google-analytics.com/ga.js (2 hours)
https://www.librus.pl/fancybox/jquery.fancybox-1.3.4.css (2 hours)
https://www.librus.pl/images/ajax-loader.gif (2 hours)
https://www.librus.pl/images/ikony/home-icons.png (2 hours)
https://www.librus.pl/images/ikony/news-icon.png (2 hours)
https://www.librus.pl/images/ikony/social-icons.png (2 hours)
https://www.librus.pl/images/ikony/top-icons.png (2 hours)
https://www.librus.pl/img/fArrL.png (2 hours)
https://www.librus.pl/img/fArrR.png (2 hours)
https://www.librus.pl/img/logoLibrusTop.png (2 hours)
https://www.librus.pl/wp-content/plugins/nextgen-g…atic/ajax.js?ver=4.8.1 (2 hours)
https://www.librus.pl/wp-content/plugins/nextgen-g…ngg_store.js?ver=4.8.1 (2 hours)
https://www.librus.pl/wp-content/plugins/nextgen-g…c/persist.js?ver=4.8.1 (2 hours)
https://www.librus.pl/wp-content/plugins/nextgen-g…tic/store.js?ver=4.8.1 (2 hours)
https://www.librus.pl/wp-content/plugins/nextgen-g…x_context.js?ver=4.8.1 (2 hours)
https://www.librus.pl/wp-content/plugins/nextgen-g…d_images.css?ver=4.8.1 (2 hours)
https://www.librus.pl/wp-content/plugins/search-ev…e-styles.css?ver=4.8.1 (2 hours)
https://www.librus.pl/wp-content/plugins/wp-pagena…enavi-css.css?ver=2.70 (2 hours)
https://www.librus.pl/wp-content/themes/librus/ass…e.min.css?v=1508418622 (2 hours)
https://www.librus.pl/wp-content/themes/librus/ass….min.js?ver=1508418622 (2 hours)
https://www.librus.pl/wp-content/themes/librus/sty…0.min.css?v=1492680876 (2 hours)
https://www.librus.pl/wp-content/themes/librus/sty…n.min.css?v=1492680876 (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_kolor_02.png (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_kolor_04.png (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_kolor_08.png (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_kolor_10.png (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_kolor_11.png (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_kolor_17.png (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_szare_02.png (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_szare_04.png (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_szare_08.png (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_szare_10.png (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_szare_11.png (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_szare_17-1.png (2 hours)
https://www.librus.pl/wp-content/uploads/2013/12/new_14.png (2 hours)
https://www.librus.pl/wp-content/uploads/2013/12/new_16.png (2 hours)
https://www.librus.pl/wp-content/uploads/2013/12/new_17.png (2 hours)
https://www.librus.pl/wp-content/uploads/2013/12/new_szare_14.png (2 hours)
https://www.librus.pl/wp-content/uploads/2013/12/new_szare_16.png (2 hours)
https://www.librus.pl/wp-content/uploads/2013/12/new_szare_17.png (2 hours)
https://www.librus.pl/wp-content/uploads/2014/09/megamatma_szare_18.png (2 hours)
https://www.librus.pl/wp-content/uploads/2014/09/megamatna_kolor_18.png (2 hours)
https://www.librus.pl/wp-content/uploads/2015/06/plagiat_black.png (2 hours)
https://www.librus.pl/wp-content/uploads/2015/06/plagiat_color.png (2 hours)
https://www.librus.pl/wp-content/uploads/2015/08/AIG_kolor_19.png (2 hours)
https://www.librus.pl/wp-content/uploads/2015/08/AIG_szare_19.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/03/wdb_black.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/03/wdb_kolor.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/aplikacje-mobilne-1.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/at_big.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/dd_img1.jpg (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/dd_img2.jpg (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/dd_img3.jpg (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/faq.jpg (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/gilosz.gif (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/ikonka_art.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/kontakt.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/logo_armn1.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/logo_esekretariat1.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/logo_eswiadectwa1.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/logo_generator.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/logo_nasze-szkoly1.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/logo_plagiat.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/logo_plan-lekcji1.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/logo_sms_info.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/logo_synergia1.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/miniaturka-1.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/osin.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/qrcode-librus.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/synergia.jpg (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/temp_synergia_img.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/uslugi-edukacyjne.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/06/ikonka.jpg (2 hours)
https://www.librus.pl/wp-content/uploads/2016/09/patrnerzy_Squla_color.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/09/patrnerzy_WSiP_color.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/09/patrnerzy_szare_Squla.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/09/patrnerzy_szare_WSiP.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/09/uniqa1_color.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/09/uniqa2_black.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/12/Lumen_kolor.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/12/Lumen_szary.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/12/PCG_Akademia_kolor.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/12/PCG_Akademia_szary.png (2 hours)
https://www.librus.pl/wp-content/uploads/2017/05/baner_Karty_18052017.png (2 hours)
https://www.librus.pl/wp-content/uploads/2017/05/b…dd_librus_19052017.png (2 hours)
https://www.librus.pl/wp-content/uploads/2017/05/b…5_reforma_25042017.png (2 hours)
https://www.librus.pl/wp-content/uploads/2017/06/b…cyfrowaszkola24_v3.png (2 hours)
https://www.librus.pl/wp-content/uploads/2017/09/b…doradztwo_zawodowe.png (2 hours)
https://www.librus.pl/wp-content/uploads/2017/10/b…t_cyfryzacja_szkol.png (2 hours)
https://www.librus.pl/wp-content/uploads/2017/10/b…ibrus_jmp_11102017.png (2 hours)
https://www.librus.pl/wp-content/uploads/2017/10/b…ibrus_knd_03102017.png (2 hours)
https://www.librus.pl/wp-content/uploads/2017/10/miniaturka.png (2 hours)
https://www.librus.pl/wp-includes/js/jquery/jquery-migrate.min.js?ver=1.4.1 (2 hours)
https://www.librus.pl/wp-includes/js/jquery/jquery.js?ver=1.12.4 (2 hours)
https://www.librus.pl/wp-includes/js/wp-embed.min.js?ver=4.8.1 (2 hours)
https://www.librus.pl/wp-includes/js/wp-emoji-release.min.js?ver=4.8.1 (2 hours)

priority - 18 Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 168.7KiB (26% reduction).

Compressing https://www.librus.pl/wp-content/uploads/2017/06/b…cyfrowaszkola24_v3.png could save 33.4KiB (18% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/dd_img3.jpg could save 16KiB (82% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2017/10/b…ibrus_knd_03102017.png could save 15.2KiB (14% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2017/05/b…5_reforma_25042017.png could save 13.3KiB (29% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/dd_img2.jpg could save 10.5KiB (70% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/dd_img1.jpg could save 6.6KiB (77% reduction).
Compressing https://pbs.twimg.com/media/DLNFzPWWAAIlxt_.png:small could save 5.9KiB (22% reduction).
Compressing https://pbs.twimg.com/profile_images/3788000006974…37168193b4_normal.jpeg could save 5.8KiB (82% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/synergia.jpg could save 5.6KiB (43% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/06/ikonka.jpg could save 5.5KiB (67% reduction).
Compressing https://pbs.twimg.com/media/DLNEzE-W0AAs963.png:small could save 4.7KiB (13% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/logo_generator.png could save 3.8KiB (38% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/logo_plan-lekcji1.png could save 3.8KiB (38% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/logo_esekretariat1.png could save 3.8KiB (32% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/osin.png could save 3.8KiB (35% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/logo_nasze-szkoly1.png could save 3.6KiB (41% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/logo_synergia1.png could save 3.5KiB (30% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/logo_eswiadectwa1.png could save 3.3KiB (26% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/logo_plagiat.png could save 3.2KiB (42% reduction).
Compressing https://www.librus.pl/images/ikony/home-icons.png could save 2.7KiB (21% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/faq.jpg could save 2.2KiB (38% reduction).
Compressing https://pbs.twimg.com/profile_images/2553312243/jx…zp1fbgsw5mv_normal.png could save 1.6KiB (24% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/kontakt.png could save 1.1KiB (25% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/12/PCG_Akademia_kolor.png could save 929B (28% reduction).
Compressing https://pbs.twimg.com/profile_images/902547949103841281/TmdokZcM_normal.jpg could save 919B (49% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2013/12/new_szare_16.png could save 799B (15% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/12/PCG_Akademia_szary.png could save 790B (30% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_szare_04.png could save 727B (22% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_szare_02.png could save 682B (21% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2014/09/megamatma_szare_18.png could save 674B (16% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/12/Lumen_kolor.png could save 665B (25% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/aplikacje-mobilne-1.png could save 661B (24% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2013/12/new_szare_17.png could save 653B (21% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2014/09/megamatna_kolor_18.png could save 645B (11% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2013/12/new_17.png could save 631B (14% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/12/Lumen_szary.png could save 591B (27% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2015/06/plagiat_black.png could save 543B (21% reduction).

priority - 15 Reduce server response time

In our test, your server responded in 0.23 seconds. There are many factors that can slow down your server response time. Please read our recommendations to learn how you can monitor and measure where your server is spending the most time.

priority - 2 Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking CSS resources. This causes a delay in rendering your page.

None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.

Optimize CSS Delivery of the following:

https://www.librus.pl/wp-content/themes/librus/ass…e.min.css?v=1508418622

priority - 0 Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 2KiB (13% reduction).

Minifying https://www.librus.pl/ could save 2KiB (13% reduction) after compression.

priority - 0 Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 595B (32% reduction).

Minifying https://www.librus.pl/fancybox/jquery.fancybox-1.3.4.css could save 595B (32% reduction) after compression.

librus.pl Desktop Resources

Total Resources166
Number of Hosts13
Static Resources147
JavaScript Resources25
CSS Resources10

librus.pl Desktop Resource Breakdown

librus.pl mobile page speed rank

Last tested: 2018-03-17


Mobile Speed Bad
41/100

librus.pl Mobile Speed Test Quick Summary


priority - 67 Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

https://cdn.syndication.twimg.com/widgets/timeline…_limit=100&tz=GMT-0700 (5 minutes)
https://syndication.twitter.com/settings (10 minutes)
https://maps.googleapis.com/maps/api/js?callback=initMap (30 minutes)
https://platform.twitter.com/widgets.js (30 minutes)
https://ssl.google-analytics.com/ga.js (2 hours)
https://www.librus.pl/fancybox/jquery.fancybox-1.3.4.css (2 hours)
https://www.librus.pl/images/ajax-loader.gif (2 hours)
https://www.librus.pl/images/aktualnosci_bg.jpg (2 hours)
https://www.librus.pl/images/ikony/home-icons.png (2 hours)
https://www.librus.pl/images/ikony/news-icon.png (2 hours)
https://www.librus.pl/img/icons_set.png (2 hours)
https://www.librus.pl/img/logoLibrusTop.png (2 hours)
https://www.librus.pl/wp-content/plugins/nextgen-g…atic/ajax.js?ver=4.8.3 (2 hours)
https://www.librus.pl/wp-content/plugins/nextgen-g…ngg_store.js?ver=4.8.3 (2 hours)
https://www.librus.pl/wp-content/plugins/nextgen-g…c/persist.js?ver=4.8.3 (2 hours)
https://www.librus.pl/wp-content/plugins/nextgen-g…tic/store.js?ver=4.8.3 (2 hours)
https://www.librus.pl/wp-content/plugins/nextgen-g…x_context.js?ver=4.8.3 (2 hours)
https://www.librus.pl/wp-content/plugins/nextgen-g…d_images.css?ver=4.8.3 (2 hours)
https://www.librus.pl/wp-content/plugins/search-ev…e-styles.css?ver=4.8.3 (2 hours)
https://www.librus.pl/wp-content/plugins/wp-pagena…enavi-css.css?ver=2.70 (2 hours)
https://www.librus.pl/wp-content/themes/librus/ass…e.min.css?v=1508418622 (2 hours)
https://www.librus.pl/wp-content/themes/librus/ass….min.js?ver=1508418622 (2 hours)
https://www.librus.pl/wp-content/themes/librus/sty…0.min.css?v=1514977810 (2 hours)
https://www.librus.pl/wp-content/themes/librus/sty…n.min.css?v=1492680876 (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_kolor_02.png (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_kolor_04.png (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_kolor_08.png (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_kolor_10.png (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_kolor_11.png (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_kolor_17.png (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_szare_02.png (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_szare_04.png (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_szare_08.png (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_szare_10.png (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_szare_11.png (2 hours)
https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_szare_17-1.png (2 hours)
https://www.librus.pl/wp-content/uploads/2013/12/new_14.png (2 hours)
https://www.librus.pl/wp-content/uploads/2013/12/new_16.png (2 hours)
https://www.librus.pl/wp-content/uploads/2013/12/new_17.png (2 hours)
https://www.librus.pl/wp-content/uploads/2013/12/new_szare_14.png (2 hours)
https://www.librus.pl/wp-content/uploads/2013/12/new_szare_16.png (2 hours)
https://www.librus.pl/wp-content/uploads/2013/12/new_szare_17.png (2 hours)
https://www.librus.pl/wp-content/uploads/2014/09/megamatma_szare_18.png (2 hours)
https://www.librus.pl/wp-content/uploads/2014/09/megamatna_kolor_18.png (2 hours)
https://www.librus.pl/wp-content/uploads/2015/06/plagiat_black.png (2 hours)
https://www.librus.pl/wp-content/uploads/2015/06/plagiat_color.png (2 hours)
https://www.librus.pl/wp-content/uploads/2015/08/AIG_kolor_19.png (2 hours)
https://www.librus.pl/wp-content/uploads/2015/08/AIG_szare_19.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/03/wdb_black.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/03/wdb_kolor.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/aplikacje-mobilne-1.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/at_big.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/dd_img1.jpg (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/dd_img2.jpg (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/dd_img3.jpg (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/faq.jpg (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/gilosz.gif (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/kontakt.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/logo_armn1.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/logo_esekretariat1.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/logo_eswiadectwa1.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/logo_generator.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/logo_nasze-szkoly1.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/logo_plagiat.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/logo_plan-lekcji1.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/logo_sms_info.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/logo_synergia1.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/osin.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/04/qrcode-librus.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/06/ikonka.jpg (2 hours)
https://www.librus.pl/wp-content/uploads/2016/09/patrnerzy_Squla_color.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/09/patrnerzy_WSiP_color.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/09/patrnerzy_szare_Squla.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/09/patrnerzy_szare_WSiP.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/09/uniqa1_color.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/09/uniqa2_black.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/12/Lumen_kolor.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/12/Lumen_szary.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/12/PCG_Akademia_kolor.png (2 hours)
https://www.librus.pl/wp-content/uploads/2016/12/PCG_Akademia_szary.png (2 hours)
https://www.librus.pl/wp-content/uploads/2017/05/b…dd_librus_19052017.png (2 hours)
https://www.librus.pl/wp-content/uploads/2017/10/b…ibrus_jmp_11102017.png (2 hours)
https://www.librus.pl/wp-content/uploads/2017/11/Banner_Librus_SMOG-1.png (2 hours)
https://www.librus.pl/wp-content/uploads/2018/02/B…_Smog_990_19022018.jpg (2 hours)
https://www.librus.pl/wp-content/uploads/2018/03/M…ermoc_06032018_990.jpg (2 hours)
https://www.librus.pl/wp-content/uploads/2018/03/b…_libruspl_13032018.jpg (2 hours)
https://www.librus.pl/wp-includes/js/jquery/jquery-migrate.min.js?ver=1.4.1 (2 hours)
https://www.librus.pl/wp-includes/js/jquery/jquery.js?ver=1.12.4 (2 hours)
https://www.librus.pl/wp-includes/js/wp-embed.min.js?ver=4.8.3 (2 hours)
https://www.librus.pl/wp-includes/js/wp-emoji-release.min.js?ver=4.8.3 (2 hours)

priority - 40 Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 9 blocking script resources and 6 blocking CSS resources. This causes a delay in rendering your page.

None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.

Remove render-blocking JavaScript:

https://www.librus.pl/wp-content/plugins/nextgen-g…atic/ajax.js?ver=4.8.3
https://www.librus.pl/wp-includes/js/jquery/jquery.js?ver=1.12.4
https://www.librus.pl/wp-includes/js/jquery/jquery-migrate.min.js?ver=1.4.1
https://www.librus.pl/wp-content/plugins/nextgen-g…c/persist.js?ver=4.8.3
https://www.librus.pl/wp-content/plugins/nextgen-g…tic/store.js?ver=4.8.3
https://www.librus.pl/wp-content/plugins/nextgen-g…ngg_store.js?ver=4.8.3
https://www.librus.pl/wp-content/plugins/nextgen-g…x_context.js?ver=4.8.3
https://www.librus.pl/wp-content/themes/librus/ass….min.js?ver=1508418622
https://www.librus.pl/wp-includes/js/wp-embed.min.js?ver=4.8.3

Optimize CSS Delivery of the following:

https://www.librus.pl/wp-content/themes/librus/ass…e.min.css?v=1508418622
https://www.librus.pl/wp-content/themes/librus/sty…n.min.css?v=1492680876
https://www.librus.pl/fancybox/jquery.fancybox-1.3.4.css
https://www.librus.pl/wp-content/plugins/nextgen-g…d_images.css?ver=4.8.3
https://www.librus.pl/wp-content/plugins/search-ev…e-styles.css?ver=4.8.3
https://www.librus.pl/wp-content/plugins/wp-pagena…enavi-css.css?ver=2.70

priority - 21 Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 206.6KiB (32% reduction).

Compressing https://www.librus.pl/wp-content/uploads/2018/02/B…_Smog_990_19022018.jpg could save 33.7KiB (30% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2018/03/b…_libruspl_13032018.jpg could save 27.2KiB (33% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2018/03/M…ermoc_06032018_990.jpg could save 26.4KiB (30% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/dd_img3.jpg could save 16KiB (82% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2017/11/Banner_Librus_SMOG-1.png could save 13.3KiB (19% reduction).
Compressing https://www.librus.pl/images/aktualnosci_bg.jpg could save 11.1KiB (26% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/dd_img2.jpg could save 10.5KiB (70% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/dd_img1.jpg could save 6.6KiB (77% reduction).
Compressing https://pbs.twimg.com/profile_images/2553312243/jx…zp1fbgsw5mv_bigger.png could save 6.2KiB (39% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/06/ikonka.jpg could save 5.5KiB (67% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/logo_generator.png could save 3.8KiB (38% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/logo_plan-lekcji1.png could save 3.8KiB (38% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/logo_esekretariat1.png could save 3.8KiB (32% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/osin.png could save 3.8KiB (35% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/logo_nasze-szkoly1.png could save 3.6KiB (41% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/logo_synergia1.png could save 3.5KiB (30% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/logo_eswiadectwa1.png could save 3.3KiB (26% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/logo_plagiat.png could save 3.2KiB (42% reduction).
Compressing https://www.librus.pl/images/ikony/home-icons.png could save 2.7KiB (21% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/faq.jpg could save 2.2KiB (38% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/kontakt.png could save 1.1KiB (25% reduction).
Compressing https://www.librus.pl/img/icons_set.png could save 956B (58% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/12/PCG_Akademia_kolor.png could save 929B (28% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2013/12/new_szare_16.png could save 799B (15% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/12/PCG_Akademia_szary.png could save 790B (30% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_szare_04.png could save 727B (22% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_szare_02.png could save 682B (21% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2014/09/megamatma_szare_18.png could save 674B (16% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/12/Lumen_kolor.png could save 665B (25% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/04/aplikacje-mobilne-1.png could save 661B (24% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2013/12/new_szare_17.png could save 653B (21% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2014/09/megamatna_kolor_18.png could save 645B (11% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2013/12/new_17.png could save 631B (14% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/12/Lumen_szary.png could save 591B (27% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2015/06/plagiat_black.png could save 543B (21% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2015/06/plagiat_color.png could save 494B (15% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_szare_08.png could save 492B (26% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/09/patrnerzy_szare_Squla.png could save 449B (19% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_kolor_04.png could save 433B (11% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_szare_11.png could save 348B (19% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/03/wdb_black.png could save 345B (15% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_kolor_08.png could save 339B (17% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_szare_17-1.png could save 338B (21% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/03/wdb_kolor.png could save 334B (12% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_szare_10.png could save 327B (13% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/09/patrnerzy_Squla_color.png could save 319B (11% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2015/08/AIG_kolor_19.png could save 318B (22% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2015/08/AIG_szare_19.png could save 317B (27% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2013/12/new_14.png could save 273B (15% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2012/05/patrnerzy_kolor_17.png could save 230B (12% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2016/09/uniqa2_black.png could save 230B (16% reduction).
Compressing https://www.librus.pl/wp-content/uploads/2013/12/new_szare_14.png could save 165B (12% reduction).

priority - 20 Reduce server response time

In our test, your server responded in 0.23 seconds. There are many factors that can slow down your server response time. Please read our recommendations to learn how you can monitor and measure where your server is spending the most time.

priority - 8 Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 68% of the final above-the-fold content could be rendered with the full HTML response.

priority - 0 Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 1.9KiB (13% reduction).

Minifying https://www.librus.pl/ could save 1.9KiB (13% reduction) after compression.

priority - 0 Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 595B (32% reduction).

Minifying https://www.librus.pl/fancybox/jquery.fancybox-1.3.4.css could save 595B (32% reduction) after compression.

librus.pl Mobile Resources

Total Resources128
Number of Hosts9
Static Resources120
JavaScript Resources21
CSS Resources8

librus.pl Mobile Resource Breakdown

librus.pl mobile page usability

Last tested: 2018-03-17


Mobile Usability Good
96/100

librus.pl Mobile Usability Test Quick Summary


priority - 3 Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.

The following tap targets are close to other nearby tap targets and may need additional spacing around them.

The tap target <a href="https://synergia.librus.pl/">LIBRUS Synergia™</a> and 11 others are close to other tap targets.
The tap target <div id="cookieBoxClose" class="cookieBoxClose">x</div> is close to 3 other tap targets.

The tap target <a href="javascript: void(null);">x</a> is close to 2 other tap targets.

librus.pl Mobile Resources

Total Resources128
Number of Hosts9
Static Resources120
JavaScript Resources21
CSS Resources8

librus.pl Mobile Resource Breakdown

librus.pl similar domains

Similar domains:
www.librus.com
www.librus.net
www.librus.org
www.librus.info
www.librus.biz
www.librus.us
www.librus.mobi
www.ibrus.pl
www.librus.pl
www.pibrus.pl
www.lpibrus.pl
www.plibrus.pl
www.oibrus.pl
www.loibrus.pl
www.olibrus.pl
www.kibrus.pl
www.lkibrus.pl
www.klibrus.pl
www.lbrus.pl
www.lubrus.pl
www.liubrus.pl
www.luibrus.pl
www.ljbrus.pl
www.lijbrus.pl
www.ljibrus.pl
www.lkbrus.pl
www.likbrus.pl
www.lobrus.pl
www.liobrus.pl
www.lirus.pl
www.livrus.pl
www.libvrus.pl
www.livbrus.pl
www.ligrus.pl
www.libgrus.pl
www.ligbrus.pl
www.lihrus.pl
www.libhrus.pl
www.lihbrus.pl
www.linrus.pl
www.libnrus.pl
www.linbrus.pl
www.libus.pl
www.libeus.pl
www.libreus.pl
www.liberus.pl
www.libdus.pl
www.librdus.pl
www.libdrus.pl
www.libfus.pl
www.librfus.pl
www.libfrus.pl
www.libtus.pl
www.librtus.pl
www.libtrus.pl
www.librs.pl
www.librys.pl
www.libruys.pl
www.libryus.pl
www.librhs.pl
www.libruhs.pl
www.librhus.pl
www.librjs.pl
www.librujs.pl
www.librjus.pl
www.libris.pl
www.libruis.pl
www.librius.pl
www.libru.pl
www.libruw.pl
www.librusw.pl
www.libruws.pl
www.librue.pl
www.libruse.pl
www.librues.pl
www.librud.pl
www.librusd.pl
www.libruds.pl
www.libruz.pl
www.librusz.pl
www.libruzs.pl
www.librux.pl
www.librusx.pl
www.libruxs.pl
www.librua.pl
www.librusa.pl
www.libruas.pl

librus.pl Ping

Ping is a networking utility tool to test if a particular host is reachable. It is a diagnostic that checks reachability of a host on an Internet Protocol (IP) network. In a computer network, a ping test is a way of sending messages from one host to another. Aside from checking if the host is connected to a network, ping also gives indicators of the reliability and general speed of the connection.


librus.pl TRACEROUTE

Traceroute is a network diagnostic tool used to track the pathway taken by a packet on an IP network from source to destination. Traceroute also records the time taken for each hop the packet makes during its route to the destination. Traceroute uses ICMP (Internet Control Message Protocol) echo packets with variable time to live values. The response time of each hop is calculated. To guarantee accuracy, each hop is queried multiple times (usually three times) to better measure the response of that particular hop.