central-group.cz website information.
central-group.cz domain name is registered by .CZ top-level domain registry. See the other sites registred in .CZ domain zone.
Following name servers are specified for central-group.cz domain:
- ns.forpsi.cz
- ns.forpsi.it
- ns.forpsi.net
and probably website central-group.cz is hosted by CLOUDFLARENET - Cloudflare, Inc., US web hosting company. Check the complete list of other most popular websites hosted by CLOUDFLARENET - Cloudflare, Inc., US hosting company.
According to Alexa traffic rank the highest website central-group.cz position was 28885 (in the world). The lowest Alexa rank position was 999350. Now website central-group.cz ranked in Alexa database as number 890809 (in the world).
Website central-group.cz Desktop speed measurement score (63/100) is better than the results of 39.87% of other sites shows that the page desktop performance can be improved.
central-group.cz Mobile usability score (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.
Mobile speed measurement score of central-group.cz (59/100) is better than the results of 52.41% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
Weekly Rank Report
| Date | Rank | Change |
|---|---|---|
| Nov-14-2024 | 890,809 | 5,050 |
| Nov-13-2024 | 895,859 | 0 |
| Nov-12-2024 | 895,859 | 0 |
| Nov-11-2024 | 895,859 | 0 |
| Nov-10-2024 | 895,859 | 1,183 |
| Nov-09-2024 | 897,042 | -311 |
| Nov-08-2024 | 896,731 | 25,938 |
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central-group.cz 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.
central-group.cz whois
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central-group.cz server information
central-group.cz desktop page speed rank
Last tested: 2019-01-22
Desktop Speed
Bad
63/100
central-group.cz Desktop Speed Test Quick Summary
priority - 41 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:
http://www.central-group.cz/Css/SCss/hp.css (expiration not specified)
http://www.central-group.cz/Css/SCss/jssor.js (expiration not specified)
http://www.central-group.cz/Css/SCss/jssor.slider.js (expiration not specified)
http://www.central-group.cz/Css/SCss/mapy-rozcestnik.css (expiration not specified)
http://www.central-group.cz/Uloziste/29/2964f0f8-8…-921a-a73cedf4e06b.gif (expiration not specified)
http://www.central-group.cz/Uloziste/9d/9de8f5b4-d…-839f-50057e1dea8d.png (expiration not specified)
http://www.central-group.cz/css/MinifiedHomepageCss.css (expiration not specified)
http://www.central-group.cz/css/Tcss/MinifiedRsMasterPageCss.css (expiration not specified)
http://www.central-group.cz/img/bg-hl-menu-byt.png (expiration not specified)
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http://www.central-group.cz/img/bg-levy-panel.png (expiration not specified)
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http://www.central-group.cz/img/ko-tecka1.gif (expiration not specified)
http://www.central-group.cz/img/logo-cg.png (expiration not specified)
http://www.central-group.cz/img/mobil-seda.gif (expiration not specified)
http://www.central-group.cz/img/obecne-tecka-new.gif (expiration not specified)
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http://www.central-group.cz/img/paticka-mail.png (expiration not specified)
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http://www.central-group.cz/img/pozadi-rychle-odkazy.gif (expiration not specified)
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http://www.central-group.cz/js/MinifiedMasterPageJs.js (expiration not specified)
http://www.central-group.cz/js/definity-lib.js (expiration not specified)
http://www.central-group.cz/js/jquery-ui-i18n-definity.js (expiration not specified)
http://www.central-group.cz/js/superfish.js (expiration not specified)
http://www.central-group.cz/uloziste/06/067417c1-8…-8771-c546e64df003.jpg (expiration not specified)
http://www.central-group.cz/uloziste/12/12faa436-3…-859f-f0b696c42faf.png (expiration not specified)
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http://www.central-group.cz/uloziste/f0/f00c1385-1…-afcd-e2f5f0628c84.png (expiration not specified)
http://www.central-group.cz/uloziste/f8/f83c0c51-3…-9ce4-772f77101fcc.png (expiration not specified)
http://www.googletagmanager.com/gtm.js?id=GTM-NN4NKT (16.2 minutes)
http://connect.facebook.net/en_US/fbevents.js (20 minutes)
http://stats.g.doubleclick.net/dc.js (2 hours)
http://api.myx.cz/js/myx.js (4 hours)
http://www.central-group.cz/Css/SCss/jssor.js (expiration not specified)
http://www.central-group.cz/Css/SCss/jssor.slider.js (expiration not specified)
http://www.central-group.cz/Css/SCss/mapy-rozcestnik.css (expiration not specified)
http://www.central-group.cz/Uloziste/29/2964f0f8-8…-921a-a73cedf4e06b.gif (expiration not specified)
http://www.central-group.cz/Uloziste/9d/9de8f5b4-d…-839f-50057e1dea8d.png (expiration not specified)
http://www.central-group.cz/css/MinifiedHomepageCss.css (expiration not specified)
http://www.central-group.cz/css/Tcss/MinifiedRsMasterPageCss.css (expiration not specified)
http://www.central-group.cz/img/bg-hl-menu-byt.png (expiration not specified)
http://www.central-group.cz/img/bg-hl-menu-ko.png (expiration not specified)
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http://www.central-group.cz/img/bg-levy-panel.png (expiration not specified)
http://www.central-group.cz/img/bg-vyhledavani-jedna-zalozka-active.gif (expiration not specified)
http://www.central-group.cz/img/bg-vyhledavani-jedna-zalozka.gif (expiration not specified)
http://www.central-group.cz/img/bg-vyhledavani-zalozky.jpg (expiration not specified)
http://www.central-group.cz/img/bilo-sede-horizont-7.gif (expiration not specified)
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http://www.central-group.cz/img/cg/facebook-col.png (expiration not specified)
http://www.central-group.cz/img/cg/facebook-g.png (expiration not specified)
http://www.central-group.cz/img/cg/googleplus-col.png (expiration not specified)
http://www.central-group.cz/img/cg/googleplus-g.png (expiration not specified)
http://www.central-group.cz/img/cg/ico-letter-new.png (expiration not specified)
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http://www.central-group.cz/img/cg/obecne-tecka-new-blue.gif (expiration not specified)
http://www.central-group.cz/img/cg/youtube-col.png (expiration not specified)
http://www.central-group.cz/img/cg/youtube-g.png (expiration not specified)
http://www.central-group.cz/img/cislo_1.gif (expiration not specified)
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http://www.central-group.cz/img/hp_pozadi.gif (expiration not specified)
http://www.central-group.cz/img/hvezda-seda.gif (expiration not specified)
http://www.central-group.cz/img/ko-tecka1.gif (expiration not specified)
http://www.central-group.cz/img/logo-cg.png (expiration not specified)
http://www.central-group.cz/img/mobil-seda.gif (expiration not specified)
http://www.central-group.cz/img/obecne-tecka-new.gif (expiration not specified)
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http://www.central-group.cz/img/pa-tecka1.gif (expiration not specified)
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http://www.central-group.cz/img/pa-tecka3.gif (expiration not specified)
http://www.central-group.cz/img/paticka-mail.png (expiration not specified)
http://www.central-group.cz/img/podmenu-tecka-blue.gif (expiration not specified)
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http://www.central-group.cz/img/podmenu-tecka.gif (expiration not specified)
http://www.central-group.cz/img/pozadi-rychle-odkazy.gif (expiration not specified)
http://www.central-group.cz/img/pozadi_horni_left.gif (expiration not specified)
http://www.central-group.cz/img/pozadi_horni_right.gif (expiration not specified)
http://www.central-group.cz/img/pozadi_spodni_left.gif (expiration not specified)
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http://www.central-group.cz/img/pravy-sl-bg.png (expiration not specified)
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http://www.central-group.cz/img/tisk-logo.gif (expiration not specified)
http://www.central-group.cz/img/tlacitko_hledej_new.gif (expiration not specified)
http://www.central-group.cz/img/vyhledavani-tecky.gif (expiration not specified)
http://www.central-group.cz/js/MinifiedMasterPageJs.js (expiration not specified)
http://www.central-group.cz/js/definity-lib.js (expiration not specified)
http://www.central-group.cz/js/jquery-ui-i18n-definity.js (expiration not specified)
http://www.central-group.cz/js/superfish.js (expiration not specified)
http://www.central-group.cz/uloziste/06/067417c1-8…-8771-c546e64df003.jpg (expiration not specified)
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http://www.googletagmanager.com/gtm.js?id=GTM-NN4NKT (16.2 minutes)
http://connect.facebook.net/en_US/fbevents.js (20 minutes)
http://stats.g.doubleclick.net/dc.js (2 hours)
http://api.myx.cz/js/myx.js (4 hours)
priority - 8 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 8 blocking script resources and 3 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:
http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js
http://www.central-group.cz/js/MinifiedMasterPageJs.js
http://www.central-group.cz/js/jquery-ui-i18n-definity.js
http://www.central-group.cz/js/superfish.js
http://www.central-group.cz/js/definity-lib.js
http://www.central-group.cz/WebResource.axd?d=J_J0…1&t=635403781169127025
http://www.central-group.cz/Css/SCss/jssor.js
http://www.central-group.cz/Css/SCss/jssor.slider.js
http://www.central-group.cz/js/MinifiedMasterPageJs.js
http://www.central-group.cz/js/jquery-ui-i18n-definity.js
http://www.central-group.cz/js/superfish.js
http://www.central-group.cz/js/definity-lib.js
http://www.central-group.cz/WebResource.axd?d=J_J0…1&t=635403781169127025
http://www.central-group.cz/Css/SCss/jssor.js
http://www.central-group.cz/Css/SCss/jssor.slider.js
Optimize CSS Delivery of the following:
http://www.central-group.cz/css/Tcss/MinifiedRsMasterPageCss.css
http://www.central-group.cz/Css/SCss/hp.css
http://www.central-group.cz/css/MinifiedHomepageCss.css
http://www.central-group.cz/Css/SCss/hp.css
http://www.central-group.cz/css/MinifiedHomepageCss.css
priority - 6 Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 49.5KiB (11% reduction).
Losslessly compressing http://www.central-group.cz/Uloziste/9d/9de8f5b4-d…-839f-50057e1dea8d.png could save 12.3KiB (26% reduction).
Losslessly compressing http://www.central-group.cz/Uloziste/29/2964f0f8-8…-921a-a73cedf4e06b.gif could save 10.4KiB (54% reduction).
Losslessly compressing http://www.central-group.cz/img/obecne-tecka-new.gif could save 2.1KiB (86% reduction).
Losslessly compressing http://www.central-group.cz/img/obecne-tecka-s-new.gif could save 2.1KiB (78% reduction).
Losslessly compressing http://www.central-group.cz/img/cg/obecne-tecka-new-blue.gif could save 2KiB (77% reduction).
Losslessly compressing http://www.central-group.cz/img/logo-cg.png could save 1.9KiB (50% reduction).
Losslessly compressing http://www.central-group.cz/img/pozadi-rychle-odkazy.gif could save 1.4KiB (80% reduction).
Losslessly compressing http://www.central-group.cz/img/podmenu-tecka-blue.gif could save 1.3KiB (89% reduction).
Losslessly compressing http://www.central-group.cz/img/podmenu-tecka-orange.gif could save 1.3KiB (89% reduction).
Losslessly compressing http://www.central-group.cz/img/podmenu-tecka.gif could save 1.3KiB (89% reduction).
Losslessly compressing http://www.central-group.cz/img/podmenu-tecka-green.gif could save 1.3KiB (87% reduction).
Losslessly compressing http://www.central-group.cz/img/mobil-seda.gif could save 1.2KiB (65% reduction).
Losslessly compressing http://www.central-group.cz/uloziste/b7/b7f695b4-a…-bb0b-3717cd627ddd.gif could save 1.1KiB (30% reduction).
Losslessly compressing http://www.central-group.cz/img/hvezda-seda.gif could save 1.1KiB (63% reduction).
Losslessly compressing http://www.central-group.cz/img/sitemap.gif could save 1KiB (64% reduction).
Losslessly compressing http://www.central-group.cz/img/bilo-sede-horizont-7.gif could save 1,012B (92% reduction).
Losslessly compressing http://www.central-group.cz/img/hp_pozadi.gif could save 1,009B (73% reduction).
Losslessly compressing http://www.central-group.cz/uloziste/78/780a8752-7…-96e9-98ddffb6ea09.jpg could save 964B (1% reduction).
Losslessly compressing http://www.central-group.cz/uloziste/14/14292f8b-a…-b050-276a07127940.jpg could save 952B (1% reduction).
Losslessly compressing http://www.central-group.cz/uloziste/71/7139e220-1…-a1d8-0f5686965444.jpg could save 923B (1% reduction).
Losslessly compressing http://www.central-group.cz/img/cg/ico-tel-new.png could save 909B (73% reduction).
Losslessly compressing http://www.central-group.cz/img/cg/ico-letter-new.png could save 871B (70% reduction).
Losslessly compressing http://www.central-group.cz/uloziste/f0/f00c1385-1…-afcd-e2f5f0628c84.png could save 741B (25% reduction).
Losslessly compressing http://www.central-group.cz/img/tisk-logo.gif could save 640B (21% reduction).
Losslessly compressing http://www.central-group.cz/Uloziste/29/2964f0f8-8…-921a-a73cedf4e06b.gif could save 10.4KiB (54% reduction).
Losslessly compressing http://www.central-group.cz/img/obecne-tecka-new.gif could save 2.1KiB (86% reduction).
Losslessly compressing http://www.central-group.cz/img/obecne-tecka-s-new.gif could save 2.1KiB (78% reduction).
Losslessly compressing http://www.central-group.cz/img/cg/obecne-tecka-new-blue.gif could save 2KiB (77% reduction).
Losslessly compressing http://www.central-group.cz/img/logo-cg.png could save 1.9KiB (50% reduction).
Losslessly compressing http://www.central-group.cz/img/pozadi-rychle-odkazy.gif could save 1.4KiB (80% reduction).
Losslessly compressing http://www.central-group.cz/img/podmenu-tecka-blue.gif could save 1.3KiB (89% reduction).
Losslessly compressing http://www.central-group.cz/img/podmenu-tecka-orange.gif could save 1.3KiB (89% reduction).
Losslessly compressing http://www.central-group.cz/img/podmenu-tecka.gif could save 1.3KiB (89% reduction).
Losslessly compressing http://www.central-group.cz/img/podmenu-tecka-green.gif could save 1.3KiB (87% reduction).
Losslessly compressing http://www.central-group.cz/img/mobil-seda.gif could save 1.2KiB (65% reduction).
Losslessly compressing http://www.central-group.cz/uloziste/b7/b7f695b4-a…-bb0b-3717cd627ddd.gif could save 1.1KiB (30% reduction).
Losslessly compressing http://www.central-group.cz/img/hvezda-seda.gif could save 1.1KiB (63% reduction).
Losslessly compressing http://www.central-group.cz/img/sitemap.gif could save 1KiB (64% reduction).
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priority - 3 Avoid landing page redirects
Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://central-group.cz/
http://www.central-group.cz//default.aspx?page=Homepage&jv=1
http://www.central-group.cz/
http://www.central-group.cz//default.aspx?page=Homepage&jv=1
http://www.central-group.cz/
priority - 2 Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 19.9KiB (32% reduction).
Minifying http://www.central-group.cz/Css/SCss/jssor.slider.js could save 9.2KiB (33% reduction) after compression.
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priority - 1 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 5.2KiB (11% reduction).
Minifying http://www.central-group.cz/ could save 5.2KiB (11% reduction) after compression.
central-group.cz Desktop Resources
| Total Resources | 101 |
| Number of Hosts | 15 |
| Static Resources | 88 |
| JavaScript Resources | 16 |
| CSS Resources | 5 |
central-group.cz Desktop Resource Breakdown
central-group.cz mobile page speed rank
Last tested: 2019-01-22
Mobile Speed
Bad
59/100
central-group.cz Mobile Speed Test Quick Summary
priority - 45 Avoid landing page redirects
Your page has 4 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://central-group.cz/
http://www.central-group.cz//default.aspx?page=Homepage&jv=1
http://www.central-group.cz/
http://www.central-group.cz/pages.aspx?page=m-hp&jv=1
http://m.central-group.cz/
http://www.central-group.cz//default.aspx?page=Homepage&jv=1
http://www.central-group.cz/
http://www.central-group.cz/pages.aspx?page=m-hp&jv=1
http://m.central-group.cz/
priority - 16 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 1 blocking script resources and 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.
Remove render-blocking JavaScript:
http://m.central-group.cz/analytics.js
Optimize CSS Delivery of the following:
http://m.central-group.cz/Css/SCss/Mobil.css
priority - 13 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:
http://m.central-group.cz/Css/SCss/Mobil.css (expiration not specified)
http://m.central-group.cz/analytics.js (expiration not specified)
http://m.central-group.cz/uloziste/b4/b48beff4-382…-9f31-165a4908368d.jpg (expiration not specified)
http://www.central-group.cz/Uloziste/2d/2db5f99d-1…-8fde-be633d5634b0.png (expiration not specified)
http://www.central-group.cz/uloziste/19/19c3fe61-f…-bab9-009a22287c79.png (expiration not specified)
http://www.central-group.cz/uloziste/22/22839a6f-4…-afa4-35ace0ed86a4.png (expiration not specified)
http://www.central-group.cz/uloziste/28/28e690e2-c…-854a-bd7a0e124636.png (expiration not specified)
http://www.central-group.cz/uloziste/40/402ca3b9-0…-9046-dfd49bb4789c.png (expiration not specified)
http://www.central-group.cz/uloziste/44/4477340d-6…-8283-3aae0e64ff55.png (expiration not specified)
http://www.central-group.cz/uloziste/5e/5ee42b9d-b…-80ec-54084ab43868.gif (expiration not specified)
http://www.central-group.cz/uloziste/60/60b43d3e-5…-a31a-dbbc171d6021.png (expiration not specified)
http://www.central-group.cz/uloziste/63/63cf7943-0…-bf98-31f805da0582.png (expiration not specified)
http://www.central-group.cz/uloziste/bf/bf5b7f78-c…-8b45-25c66f9ec1b0.png (expiration not specified)
http://www.central-group.cz/uloziste/c0/c085f6d4-9…-bd7c-9049c10f3749.png (expiration not specified)
http://www.central-group.cz/uloziste/c2/c209e3d1-4…-a18d-43df23dda338.png (expiration not specified)
http://www.central-group.cz/uloziste/d9/d9af39ff-c…-a716-dde346beb12c.jpg (expiration not specified)
http://www.google-analytics.com/ga.js (2 hours)
http://m.central-group.cz/analytics.js (expiration not specified)
http://m.central-group.cz/uloziste/b4/b48beff4-382…-9f31-165a4908368d.jpg (expiration not specified)
http://www.central-group.cz/Uloziste/2d/2db5f99d-1…-8fde-be633d5634b0.png (expiration not specified)
http://www.central-group.cz/uloziste/19/19c3fe61-f…-bab9-009a22287c79.png (expiration not specified)
http://www.central-group.cz/uloziste/22/22839a6f-4…-afa4-35ace0ed86a4.png (expiration not specified)
http://www.central-group.cz/uloziste/28/28e690e2-c…-854a-bd7a0e124636.png (expiration not specified)
http://www.central-group.cz/uloziste/40/402ca3b9-0…-9046-dfd49bb4789c.png (expiration not specified)
http://www.central-group.cz/uloziste/44/4477340d-6…-8283-3aae0e64ff55.png (expiration not specified)
http://www.central-group.cz/uloziste/5e/5ee42b9d-b…-80ec-54084ab43868.gif (expiration not specified)
http://www.central-group.cz/uloziste/60/60b43d3e-5…-a31a-dbbc171d6021.png (expiration not specified)
http://www.central-group.cz/uloziste/63/63cf7943-0…-bf98-31f805da0582.png (expiration not specified)
http://www.central-group.cz/uloziste/bf/bf5b7f78-c…-8b45-25c66f9ec1b0.png (expiration not specified)
http://www.central-group.cz/uloziste/c0/c085f6d4-9…-bd7c-9049c10f3749.png (expiration not specified)
http://www.central-group.cz/uloziste/c2/c209e3d1-4…-a18d-43df23dda338.png (expiration not specified)
http://www.central-group.cz/uloziste/d9/d9af39ff-c…-a716-dde346beb12c.jpg (expiration not specified)
http://www.google-analytics.com/ga.js (2 hours)
priority - 1 Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 11.9KiB (9% reduction).
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Losslessly compressing http://www.central-group.cz/uloziste/19/19c3fe61-f…-bab9-009a22287c79.png could save 1.1KiB (54% reduction).
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Losslessly compressing http://www.central-group.cz/uloziste/44/4477340d-6…-8283-3aae0e64ff55.png could save 936B (81% reduction).
Losslessly compressing http://m.central-group.cz/uloziste/b4/b48beff4-382…-9f31-165a4908368d.jpg could save 903B (1% reduction).
Losslessly compressing http://www.central-group.cz/uloziste/d9/d9af39ff-c…-a716-dde346beb12c.jpg could save 841B (49% reduction).
Losslessly compressing http://www.central-group.cz/uloziste/c2/c209e3d1-4…-a18d-43df23dda338.png could save 702B (45% reduction).
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 583B (16% reduction).
Minifying http://m.central-group.cz/Css/SCss/Mobil.css could save 583B (16% reduction) after compression.
central-group.cz Mobile Resources
| Total Resources | 23 |
| Number of Hosts | 4 |
| Static Resources | 17 |
| JavaScript Resources | 2 |
| CSS Resources | 1 |
central-group.cz Mobile Resource Breakdown
central-group.cz mobile page usability
Last tested: 2019-01-22
Mobile Usability
Good
99/100
central-group.cz Mobile Usability Test Quick Summary
priority - 0 Configure the viewport
Your page uses an XHTML Mobile doctype declaration, which instructs browsers that your page is optimized for mobile and should render properly on all devices.
If you change the doctype, for example to <!DOCTYPE html> in order to use HTML5 features, configure a viewport with <meta name=viewport width=device-width> to keep the page's current behavior.
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central-group.cz 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.
central-group.cz 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.