PRAVOPISNE.CZ Moderní cvičebnice k procvičování pravopisu | Pravopisně.cz


pravopisne.cz website information.

pravopisne.cz domain name is registered by .CZ top-level domain registry. See the other sites registred in .CZ domain zone.

No name server records were found.

and probably website pravopisne.cz is hosted by Hetzner Online GmbH web hosting company. Check the complete list of other most popular websites hosted by Hetzner Online GmbH hosting company.

According to Alexa traffic rank the highest website pravopisne.cz position was 18444 (in the world). The lowest Alexa rank position was 985498. Now website pravopisne.cz ranked in Alexa database as number 670787 (in the world).

Website pravopisne.cz Desktop speed measurement score (58/100) is better than the results of 33.06% of other sites shows that the page desktop performance can be improved.

pravopisne.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 pravopisne.cz (53/100) is better than the results of 39.51% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

Weekly Rank Report

DateRankChange
Nov-15-2024 670,7879,548
Nov-14-2024 680,33514,656
Nov-13-2024 694,9910
Nov-12-2024 694,9910
Nov-11-2024 694,9910
Nov-10-2024 694,991-30,189
Nov-09-2024 664,8023,921

Advertisement

pravopisne.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.



pravopisne.cz 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.


Your connection limit exceeded. Please slow down and try again later.

pravopisne.cz server information

Servers Location

IP Address
Country
Region
City

pravopisne.cz desktop page speed rank

Last tested: 2018-12-19


Desktop Speed Bad
58/100

pravopisne.cz Desktop Speed Test Quick Summary


priority - 53 Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 519.9KiB (68% reduction).

Compressing https://www.pravopisne.cz/wp-content/cache/busting…earchpro.min-VaNLFp.js could save 155.5KiB (69% reduction).
Compressing https://app.smartemailing.cz//public/web-forms/sub…dxjyjighyhgfrs6n310xh8 could save 88.4KiB (67% reduction).
Compressing https://www.pravopisne.cz/wp-content/cache/busting…query/jquery-1.12.4.js could save 61.9KiB (65% reduction).
Compressing https://www.pravopisne.cz/wp-content/themes/Pravop…e/jquery-1.11.3.min.js could save 61.2KiB (65% reduction).
Compressing https://www.pravopisne.cz/wp-content/cache/min/1/w…de86ec02adc96f0e1ee.js could save 25.6KiB (76% reduction).
Compressing https://www.pravopisne.cz/wp-content/themes/Pravop…nclude/validate.min.js could save 24.5KiB (71% reduction).
Compressing https://www.pravopisne.cz/wp-content/cache/busting…n.jquery.min-VaNLFp.js could save 22KiB (76% reduction).
Compressing https://www.pravopisne.cz/wp-content/cache/min/1/w…bb92e595e39a0b7ec92.js could save 21.4KiB (72% reduction).
Compressing https://www.pravopisne.cz/wp-content/plugins/gdpr-…e/dist/scripts/lity.js could save 15.6KiB (66% reduction).
Compressing https://www.pravopisne.cz/wp-content/themes/Pravop…st/images/logo_uhk.svg could save 10.9KiB (79% reduction).
Compressing https://www.pravopisne.cz/wp-content/cache/busting…ipts/main.min-1.1.5.js could save 8KiB (73% reduction).
Compressing https://www.pravopisne.cz/wp-content/cache/busting…y-migrate.min-1.4.1.js could save 5.9KiB (60% reduction).
Compressing https://app.smartemailing.cz/public/email-correcti…oader/?_=1545220051728 could save 4.8KiB (68% reduction).
Compressing https://www.pravopisne.cz/wp-content/plugins/wp-ro…lazyload-8.15.2.min.js could save 3.9KiB (62% reduction).
Compressing https://www.pravopisne.cz/wp-content/themes/Pravopisne/dist/images/logo.svg could save 2.8KiB (63% reduction).
Compressing https://www.pravopisne.cz/wp-content/themes/Pravopisne/dist/images/sk.svg could save 2.5KiB (61% reduction).
Compressing https://www.pravopisne.cz/wp-content/themes/Pravopisne/dist/images/boy.svg could save 2KiB (59% reduction).
Compressing https://www.pravopisne.cz/wp-content/cache/min/1/w…26c4cd8976ff641cbab.js could save 1.1KiB (54% reduction).
Compressing https://www.pravopisne.cz/wp-content/themes/Pravopisne/dist/images/cz.svg could save 880B (55% reduction).
Compressing https://bbnaut.ibillboard.com/initidmatch could save 440B (47% reduction).
Compressing https://www.pravopisne.cz/wp-content/themes/Pravop…ist/images/logotyp.svg could save 304B (50% reduction).
Compressing https://app.smartemailing.cz//email-suggester/style.css could save 281B (45% reduction).

priority - 18 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://www.pravopisne.cz/wp-content/cache/busting…n.jquery.min-VaNLFp.js (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/busting…earchpro.min-VaNLFp.js (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/busting…css/screen.min-1.7.css (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/busting…moon/style.min-1.7.css (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/busting…ipts/main.min-1.1.5.js (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/busting…les/main.min-1.3.2.css (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/busting…query/jquery-1.12.4.js (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/busting…y-migrate.min-1.4.1.js (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/min/1/w…de86ec02adc96f0e1ee.js (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/min/1/w…0450e2a790511f40bf.css (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/min/1/w…0c5469be538ade8351.css (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/min/1/w…26c4cd8976ff641cbab.js (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/min/1/w…bb92e595e39a0b7ec92.js (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/min/1/w…0ceb05ca7c63f04041.css (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/min/1/w…fa12cdb9f52f70bca3.css (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/min/1/w…0306865d1fa288d4d84.js (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/min/1/w…8318335565218fbb3b.css (expiration not specified)
https://www.pravopisne.cz/wp-content/plugins/gdpr-…e/dist/scripts/lity.js (expiration not specified)
https://www.pravopisne.cz/wp-content/plugins/gdpr-…e/dist/styles/lity.css (expiration not specified)
https://www.pravopisne.cz/wp-content/plugins/wp-ro…lazyload-8.15.2.min.js (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravop…e/jquery-1.11.3.min.js (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravop…nclude/validate.min.js (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravop…ssets/styles/print.css (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravop…thamRounded-Book.woff2 (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravop…amRounded-Medium.woff2 (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravop…ProximaNova-Bold.woff2 (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravop…ximaNova-Regular.woff2 (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravop…roximaNova-SBold.woff2 (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravopisne/dist/images/boy.svg (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravopisne/dist/images/cz.svg (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravopisne/dist/images/logo.svg (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravop…st/images/logo_uhk.svg (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravop…ist/images/logotyp.svg (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravopisne/dist/images/sk.svg (expiration not specified)
https://js.adscale.de/loadImages.js (5 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-53XP2RH (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 4 Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking script 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.pravopisne.cz/wp-content/cache/busting…query/jquery-1.12.4.js

priority - 0 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 2.4KiB (18% reduction).

Minifying https://app.smartemailing.cz/public/email-correcti…oader/?_=1545220051728 could save 1.7KiB (24% reduction).
Minifying https://spir.hit.gemius.pl/xgemius.js could save 808B (12% reduction) after compression.

priority - 0 Optimize images

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

Optimize the following images to reduce their size by 879B (30% reduction).

Compressing https://www.pravopisne.sk/wp-content/uploads/2018/04/filtr.png could save 514B (39% reduction).
Compressing https://www.pravopisne.sk/wp-content/uploads/2018/04/lupa.png could save 365B (23% reduction).

pravopisne.cz Desktop Resources

Total Resources124
Number of Hosts40
Static Resources53
JavaScript Resources29
CSS Resources14

pravopisne.cz Desktop Resource Breakdown

pravopisne.cz mobile page speed rank

Last tested: 2018-12-19


Mobile Speed Bad
53/100

pravopisne.cz Mobile Speed Test Quick Summary


priority - 53 Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 521.5KiB (68% reduction).

Compressing https://www.pravopisne.cz/wp-content/cache/busting…earchpro.min-VaNLFp.js could save 155.5KiB (69% reduction).
Compressing https://app.smartemailing.cz//public/web-forms/sub…dxjyjighyhgfrs6n310xh8 could save 88.4KiB (67% reduction).
Compressing https://www.pravopisne.cz/wp-content/cache/busting…query/jquery-1.12.4.js could save 61.9KiB (65% reduction).
Compressing https://www.pravopisne.cz/wp-content/themes/Pravop…e/jquery-1.11.3.min.js could save 61.2KiB (65% reduction).
Compressing https://www.pravopisne.cz/wp-content/cache/min/1/w…f1811050fb191dd97e1.js could save 27.6KiB (76% reduction).
Compressing https://www.pravopisne.cz/wp-content/themes/Pravop…nclude/validate.min.js could save 24.5KiB (71% reduction).
Compressing https://www.pravopisne.cz/wp-content/cache/busting…n.jquery.min-VaNLFp.js could save 22KiB (76% reduction).
Compressing https://www.pravopisne.cz/wp-content/cache/min/1/w…bb92e595e39a0b7ec92.js could save 21.4KiB (72% reduction).
Compressing https://www.pravopisne.cz/wp-content/plugins/gdpr-…e/dist/scripts/lity.js could save 15.6KiB (66% reduction).
Compressing https://www.pravopisne.cz/wp-content/themes/Pravop…st/images/logo_uhk.svg could save 10.9KiB (79% reduction).
Compressing https://www.pravopisne.cz/wp-content/cache/busting…ipts/main.min-1.1.5.js could save 8KiB (73% reduction).
Compressing https://www.pravopisne.cz/wp-content/cache/busting…y-migrate.min-1.4.1.js could save 5.9KiB (60% reduction).
Compressing https://app.smartemailing.cz/public/email-correcti…oader/?_=1545220074364 could save 4.8KiB (68% reduction).
Compressing https://www.pravopisne.cz/wp-content/plugins/wp-ro…lazyload-8.15.2.min.js could save 3.9KiB (62% reduction).
Compressing https://www.pravopisne.cz/wp-content/themes/Pravopisne/dist/images/logo.svg could save 2.8KiB (63% reduction).
Compressing https://www.pravopisne.cz/wp-content/themes/Pravopisne/dist/images/sk.svg could save 2.5KiB (61% reduction).
Compressing https://www.pravopisne.cz/wp-content/themes/Pravopisne/dist/images/boy.svg could save 2KiB (59% reduction).
Compressing https://www.pravopisne.cz/wp-content/cache/min/1/w…26c4cd8976ff641cbab.js could save 1.1KiB (54% reduction).
Compressing https://www.pravopisne.cz/wp-content/themes/Pravopisne/dist/images/cz.svg could save 880B (55% reduction).
Compressing https://www.pravopisne.cz/wp-content/themes/Pravop…ist/images/logotyp.svg could save 304B (50% reduction).
Compressing https://app.smartemailing.cz//email-suggester/style.css could save 281B (45% reduction).

priority - 28 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://www.pravopisne.cz/wp-content/cache/busting…n.jquery.min-VaNLFp.js (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/busting…earchpro.min-VaNLFp.js (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/busting…css/screen.min-1.7.css (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/busting…moon/style.min-1.7.css (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/busting…ipts/main.min-1.1.5.js (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/busting…les/main.min-1.3.2.css (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/busting…query/jquery-1.12.4.js (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/busting…y-migrate.min-1.4.1.js (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/min/1/w…cbbcf659e8d49ae784.css (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/min/1/w…f1811050fb191dd97e1.js (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/min/1/w…0c5469be538ade8351.css (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/min/1/w…26c4cd8976ff641cbab.js (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/min/1/w…bb92e595e39a0b7ec92.js (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/min/1/w…0ceb05ca7c63f04041.css (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/min/1/w…fa12cdb9f52f70bca3.css (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/min/1/w…0306865d1fa288d4d84.js (expiration not specified)
https://www.pravopisne.cz/wp-content/cache/min/1/w…8318335565218fbb3b.css (expiration not specified)
https://www.pravopisne.cz/wp-content/plugins/gdpr-…e/dist/scripts/lity.js (expiration not specified)
https://www.pravopisne.cz/wp-content/plugins/gdpr-…e/dist/styles/lity.css (expiration not specified)
https://www.pravopisne.cz/wp-content/plugins/wp-ro…lazyload-8.15.2.min.js (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravop…e/jquery-1.11.3.min.js (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravop…nclude/validate.min.js (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravop…ssets/styles/print.css (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravop…thamRounded-Book.woff2 (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravop…amRounded-Medium.woff2 (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravop…ProximaNova-Bold.woff2 (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravop…ximaNova-Regular.woff2 (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravop…roximaNova-SBold.woff2 (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravopisne/dist/images/boy.svg (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravopisne/dist/images/cz.svg (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravopisne/dist/images/logo.svg (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravop…st/images/logo_uhk.svg (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravop…ist/images/logotyp.svg (expiration not specified)
https://www.pravopisne.cz/wp-content/themes/Pravopisne/dist/images/sk.svg (expiration not specified)
https://www.googletagmanager.com/gtm.js?id=GTM-53XP2RH (15 minutes)
https://cdn.performax.cz/sklik/uni-sklik2.js (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 16 Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking script 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.pravopisne.cz/wp-content/cache/busting…query/jquery-1.12.4.js

priority - 0 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 2.4KiB (18% reduction).

Minifying https://app.smartemailing.cz/public/email-correcti…oader/?_=1545220074364 could save 1.7KiB (24% reduction).
Minifying https://spir.hit.gemius.pl/xgemius.js could save 808B (12% reduction) after compression.

pravopisne.cz Mobile Resources

Total Resources70
Number of Hosts19
Static Resources43
JavaScript Resources28
CSS Resources14

pravopisne.cz Mobile Resource Breakdown

pravopisne.cz mobile page usability

Last tested: 2018-12-19


Mobile Usability Good
99/100

pravopisne.cz Mobile Usability Test Quick Summary


priority - 0 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 <button class="mgbutton moove…obar-allow-all">Souhlasím</button> is close to 1 other tap targets.

pravopisne.cz similar domains

Similar domains:
www.pravopisne.com
www.pravopisne.net
www.pravopisne.org
www.pravopisne.info
www.pravopisne.biz
www.pravopisne.us
www.pravopisne.mobi
www.ravopisne.cz
www.pravopisne.cz
www.oravopisne.cz
www.poravopisne.cz
www.opravopisne.cz
www.lravopisne.cz
www.plravopisne.cz
www.lpravopisne.cz
www.pavopisne.cz
www.peavopisne.cz
www.preavopisne.cz
www.peravopisne.cz
www.pdavopisne.cz
www.prdavopisne.cz
www.pdravopisne.cz
www.pfavopisne.cz
www.prfavopisne.cz
www.pfravopisne.cz
www.ptavopisne.cz
www.prtavopisne.cz
www.ptravopisne.cz
www.prvopisne.cz
www.prqvopisne.cz
www.praqvopisne.cz
www.prqavopisne.cz
www.prwvopisne.cz
www.prawvopisne.cz
www.prwavopisne.cz
www.prsvopisne.cz
www.prasvopisne.cz
www.prsavopisne.cz
www.przvopisne.cz
www.prazvopisne.cz
www.przavopisne.cz
www.praopisne.cz
www.pracopisne.cz
www.pravcopisne.cz
www.pracvopisne.cz
www.prafopisne.cz
www.pravfopisne.cz
www.prafvopisne.cz
www.pragopisne.cz
www.pravgopisne.cz
www.pragvopisne.cz
www.prabopisne.cz
www.pravbopisne.cz
www.prabvopisne.cz
www.pravpisne.cz
www.pravipisne.cz
www.pravoipisne.cz
www.praviopisne.cz
www.pravkpisne.cz
www.pravokpisne.cz
www.pravkopisne.cz
www.pravlpisne.cz
www.pravolpisne.cz
www.pravlopisne.cz
www.pravppisne.cz
www.pravoppisne.cz
www.pravpopisne.cz
www.pravoisne.cz
www.pravooisne.cz
www.pravopoisne.cz
www.pravoopisne.cz
www.pravolisne.cz
www.pravoplisne.cz
www.pravopsne.cz
www.pravopusne.cz
www.pravopiusne.cz
www.pravopuisne.cz
www.pravopjsne.cz
www.pravopijsne.cz
www.pravopjisne.cz
www.pravopksne.cz
www.pravopiksne.cz
www.pravopkisne.cz
www.pravoposne.cz
www.pravopiosne.cz
www.pravopine.cz
www.pravopiwne.cz
www.pravopiswne.cz
www.pravopiwsne.cz
www.pravopiene.cz
www.pravopisene.cz
www.pravopiesne.cz
www.pravopidne.cz
www.pravopisdne.cz
www.pravopidsne.cz
www.pravopizne.cz
www.pravopiszne.cz
www.pravopizsne.cz
www.pravopixne.cz
www.pravopisxne.cz
www.pravopixsne.cz
www.pravopiane.cz
www.pravopisane.cz
www.pravopiasne.cz
www.pravopise.cz
www.pravopisbe.cz
www.pravopisnbe.cz
www.pravopisbne.cz
www.pravopishe.cz
www.pravopisnhe.cz
www.pravopishne.cz
www.pravopisje.cz
www.pravopisnje.cz
www.pravopisjne.cz
www.pravopisme.cz
www.pravopisnme.cz
www.pravopismne.cz
www.pravopisn.cz
www.pravopisnw.cz
www.pravopisnew.cz
www.pravopisnwe.cz
www.pravopisns.cz
www.pravopisnes.cz
www.pravopisnse.cz
www.pravopisnd.cz
www.pravopisned.cz
www.pravopisnde.cz
www.pravopisnr.cz
www.pravopisner.cz
www.pravopisnre.cz

pravopisne.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.


pravopisne.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.