zsr.sk Website Information

Daily Unique Visits: 5,522

Daily Page Views: 22,088

Income Per Day: $62

Estimated Value: $33,480

This website is located in Slovakia and is using following IP address 217.12.48.14. See the complete list of popular websites hosted in Slovakia.

zsr.sk is registered under .SK top-level domain. Please check other sites in .SK zone.

Website zsr.sk is using the following name servers:

ns.ditec.sk
ns.zsr.sk

and is probably hosted by ZSR - ZT Bratislava. See the full list of other websites hosted by ZSR - ZT Bratislava.

The highest website zsr.sk position in Alexa rank database was 12965 and the lowest rank position was 969277. Current position of zsr.sk in Alexa rank database is 227246.

Desktop speed score of zsr.sk (56/100) is better than the results of 30.56% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of zsr.sk (59/100) is better than the results of 2.69% of other sites and means that the page is not mobile-friendly.

Mobile speed score of zsr.sk (44/100) is better than the results of 24.22% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

zsr.sk Alexa Rank

The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.

zsr.sk whois

WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.

Domain: zsr.sk
Created: 2003-03-24
Valid Until: 2025-03-24
Updated: 2024-03-04
Domain Status: ok
Nameserver: ns.zsr.sk
Nameserver: ns.ditec.sk
DNSSEC: Yes

Domain registrant: SSTR-0001
Name: Železnice Slovenskej republiky
Organization: Železnice Slovenskej republiky
Organization ID: 31364501
Phone: +421.220294371
Email: tomasek.peter@zsr.sk
Street: Klemensova 8
City: Bratislava
Postal Code: 81361
Country Code: SK
Created: 2017-09-01
Updated: 2024-05-16

Registrar: SSTR-0001
Name: Železnice Slovenskej republiky
Organization: Železnice Slovenskej republiky
Organization ID: 31364501
Phone: +421.220294371
Email: tomasek.peter@zsr.sk
Street: Klemensova 8
City: Bratislava
Postal Code: 81361
Country Code: SK
Created: 2017-09-01
Updated: 2024-05-16

Administrative Contact: SSTR-0001
Name: Železnice Slovenskej republiky
Organization: Železnice Slovenskej republiky
Organization ID: 31364501
Phone: +421.220294371
Email: tomasek.peter@zsr.sk
Street: Klemensova 8
City: Bratislava
Postal Code: 81361
Country Code: SK
Created: 2017-09-01
Updated: 2024-05-16

Technical Contact: SSTR-0001
Name: Železnice Slovenskej republiky
Organization: Železnice Slovenskej republiky
Organization ID: 31364501
Phone: +421.220294371
Email: tomasek.peter@zsr.sk
Street: Klemensova 8
City: Bratislava
Postal Code: 81361
Country Code: SK
Created: 2017-09-01
Updated: 2024-05-16

zsr.sk server information

Servers Location

zsr.sk desktop page speed rank

Last tested: 2017-05-26

Desktop Speed Bad

56/100

zsr.sk Desktop Speed Test Quick Summary

priority - 32Enable 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 314.8KiB (74% reduction).

Compressing http://www.zsr.sk/buxus/docs/lightbox/js/prototype.js could save 136.8KiB (77% reduction).
Compressing http://www.zsr.sk/buxus/docs/javascript/jquery-1.9.0.min.js could save 58.7KiB (64% reduction).
Compressing http://www.zsr.sk/ could save 52.7KiB (82% reduction).
Compressing http://www.zsr.sk/buxus/docs/lightbox/js/effects.js could save 29.3KiB (76% reduction).
Compressing http://www.zsr.sk/buxus/docs/lightbox/js/lightbox.js could save 13.2KiB (73% reduction).
Compressing http://www.zsr.sk/buxus/docs/flowplayer/flowplayer-3.0.0.min.js could save 12.3KiB (65% reduction).
Compressing http://www.zsr.sk/buxus/docs/css/zsr.css could save 4.3KiB (81% reduction).
Compressing http://www.zsr.sk/buxus/docs/lightbox/js/builder.js could save 2.8KiB (61% reduction).
Compressing http://www.zsr.sk/buxus/docs/javascript/jquery.highlight.js could save 2.5KiB (63% reduction).
Compressing http://www.zsr.sk/buxus/docs/lightbox/js/scriptacu…s?load=effects,builder could save 1.3KiB (49% reduction).
Compressing http://www.zsr.sk/buxus/docs/lightbox/css/lightbox1.css could save 1,006B (59% reduction).

priority - 18Leverage 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.zsr.sk/buxus/docs/css/zsr.css (expiration not specified)
http://www.zsr.sk/buxus/docs/flowplayer/flowplayer-3.0.0.min.js (expiration not specified)
http://www.zsr.sk/buxus/docs/javascript/jquery-1.9.0.min.js (expiration not specified)
http://www.zsr.sk/buxus/docs/javascript/jquery.highlight.js (expiration not specified)
http://www.zsr.sk/buxus/docs/lightbox/css/lightbox1.css (expiration not specified)
http://www.zsr.sk/buxus/docs/lightbox/js/builder.js (expiration not specified)
http://www.zsr.sk/buxus/docs/lightbox/js/effects.js (expiration not specified)
http://www.zsr.sk/buxus/docs/lightbox/js/lightbox.js (expiration not specified)
http://www.zsr.sk/buxus/docs/lightbox/js/prototype.js (expiration not specified)
http://www.zsr.sk/buxus/images/aktual.gif (expiration not specified)
http://www.zsr.sk/buxus/images/mediaroom/tlacove_spravy/PLAGAT_Kosice.jpg (expiration not specified)
http://www.zsr.sk/buxus/images/mediaroom/tlacove_spravy/jic_ver2.jpg (expiration not specified)
http://www.zsr.sk/buxus/images/mediaroom/tlacove_spravy/otestujsa2.jpg (expiration not specified)
http://www.zsr.sk/buxus/images/template/CP_2017_WEB.png (expiration not specified)
http://www.zsr.sk/buxus/images/template/aktual.gif (expiration not specified)
http://www.zsr.sk/buxus/images/template/banSHM.gif (expiration not specified)
http://www.zsr.sk/buxus/images/template/banner_Infor_tabule_220x20.gif (expiration not specified)
http://www.zsr.sk/buxus/images/template/banner_ZSR_200x67_prieskum_v2.gif (expiration not specified)
http://www.zsr.sk/buxus/images/template/banner_ZT_500x125.gif (expiration not specified)
http://www.zsr.sk/buxus/images/template/flag_de.jpg (expiration not specified)
http://www.zsr.sk/buxus/images/template/flag_eng.jpg (expiration not specified)
http://www.zsr.sk/buxus/images/template/flag_sk.jpg (expiration not specified)
http://www.zsr.sk/buxus/images/template/footer_bg.jpg (expiration not specified)
http://www.zsr.sk/buxus/images/template/hladaj_btn.jpg (expiration not specified)
http://www.zsr.sk/buxus/images/template/hladaj_elis.jpg (expiration not specified)
http://www.zsr.sk/buxus/images/template/home_line.jpg (expiration not specified)
http://www.zsr.sk/buxus/images/template/home_title2_to_title3.jpg (expiration not specified)
http://www.zsr.sk/buxus/images/template/home_title_to_title2.jpg (expiration not specified)
http://www.zsr.sk/buxus/images/template/home_top_blank_to_title.jpg (expiration not specified)
http://www.zsr.sk/buxus/images/template/logo.jpg (expiration not specified)
http://www.zsr.sk/buxus/images/template/logo_kariera.jpg (expiration not specified)
http://www.zsr.sk/buxus/images/template/mapa_z_pohyb%20vlakov_220x20.gif (expiration not specified)
http://www.zsr.sk/buxus/images/template/mdc.gif (expiration not specified)
http://www.zsr.sk/buxus/images/template/pohyb_vlakov_220x20.gif (expiration not specified)
http://www.zsr.sk/buxus/images/template/semafor_ooo.png (expiration not specified)
http://www.zsr.sk/buxus/images/template/vlakynet.gif (expiration not specified)
http://www.google-analytics.com/ga.js (2 hours)

priority - 14Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 8 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

http://www.zsr.sk/buxus/docs/lightbox/js/prototype.js
http://www.zsr.sk/buxus/docs/lightbox/js/scriptacu…s?load=effects,builder
http://www.zsr.sk/buxus/docs/lightbox/js/effects.js
http://www.zsr.sk/buxus/docs/lightbox/js/builder.js
http://www.zsr.sk/buxus/docs/lightbox/js/lightbox.js
http://www.zsr.sk/buxus/docs/flowplayer/flowplayer-3.0.0.min.js
http://www.zsr.sk/buxus/docs/javascript/jquery-1.9.0.min.js
http://www.zsr.sk/buxus/docs/javascript/jquery.highlight.js

Optimize CSS Delivery of the following:

http://www.zsr.sk/buxus/docs/css/zsr.css
http://www.zsr.sk/buxus/docs/lightbox/css/lightbox1.css

priority - 11Optimize images

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

Optimize the following images to reduce their size by 103.5KiB (60% reduction).

Compressing http://www.zsr.sk/buxus/images/mediaroom/tlacove_spravy/jic_ver2.jpg could save 54.9KiB (70% reduction).
Compressing http://www.zsr.sk/buxus/images/mediaroom/tlacove_spravy/PLAGAT_Kosice.jpg could save 33.2KiB (60% reduction).
Compressing http://www.zsr.sk/buxus/images/mediaroom/tlacove_spravy/otestujsa2.jpg could save 12.3KiB (56% reduction).
Compressing http://www.zsr.sk/buxus/images/template/CP_2017_WEB.png could save 3.1KiB (19% reduction).

priority - 7Minify 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 67.7KiB (28% reduction).

Minifying http://www.zsr.sk/buxus/docs/lightbox/js/prototype.js could save 43.7KiB (25% reduction).
Minifying http://www.zsr.sk/buxus/docs/lightbox/js/lightbox.js could save 9.4KiB (52% reduction).
Minifying http://www.zsr.sk/buxus/docs/lightbox/js/effects.js could save 9KiB (24% reduction).
Minifying http://www.zsr.sk/buxus/docs/javascript/jquery.highlight.js could save 2.3KiB (58% reduction).
Minifying http://www.zsr.sk/buxus/docs/lightbox/js/builder.js could save 1.7KiB (38% reduction).
Minifying http://www.zsr.sk/buxus/docs/lightbox/js/scriptacu…s?load=effects,builder could save 1.6KiB (60% reduction).

priority - 2Prioritize 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.

64KiB of the HTML response was required to render the above-the-fold content. This requires 3 network round-trips. However, if the HTML response were compressed, then the HTML required to render the above-the-fold content could be delivered in just 1 network round-trips. Enable compression for the HTML response in order to prioritize the visible content for this page.

Only about 52% of the final above-the-fold content could be rendered with the HTML delivered within 2 round-trips.

priority - 1Minify 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 9.5KiB (15% reduction).

Minifying http://www.zsr.sk/ could save 9.5KiB (15% reduction).

priority - 0Minify 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 1.2KiB (23% reduction).

Minifying http://www.zsr.sk/buxus/docs/css/zsr.css could save 1.2KiB (23% reduction).

priority - 0Reduce server response time

zsr.sk Desktop Resource Breakdown

Total Resources	43
Number of Hosts	3
Static Resources	37
JavaScript Resources	9
CSS Resources	2

zsr.sk mobile page speed rank

Last tested: 2017-05-26

Mobile Speed Bad

44/100

zsr.sk Mobile Speed Test Quick Summary

priority - 56Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 8 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

http://www.zsr.sk/buxus/docs/css/zsr.css
http://www.zsr.sk/buxus/docs/lightbox/css/lightbox1.css

priority - 32Enable 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 314.8KiB (74% reduction).

priority - 28Leverage 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:

priority - 11Optimize images

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

Optimize the following images to reduce their size by 103.5KiB (60% reduction).

priority - 8Prioritize 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.

64KiB of the HTML response was required to render the above-the-fold content. This requires 3 network round-trips. However, if the HTML response were compressed, then the HTML required to render the above-the-fold content could be delivered in just 1 network round-trips. Enable compression for the HTML response in order to prioritize the visible content for this page.

Only about 44% of the final above-the-fold content could be rendered with the HTML delivered within 2 round-trips.

priority - 7Minify 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 67.7KiB (28% reduction).

priority - 1Minify 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 9.5KiB (15% reduction).

Minifying http://www.zsr.sk/ could save 9.5KiB (15% reduction).

priority - 0Minify 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 1.2KiB (23% reduction).

Minifying http://www.zsr.sk/buxus/docs/css/zsr.css could save 1.2KiB (23% reduction).

priority - 0Reduce server response time

zsr.sk Mobile Resource Breakdown

Total Resources	43
Number of Hosts	3
Static Resources	37
JavaScript Resources	9
CSS Resources	2

zsr.sk mobile page usability

Last tested: 2017-05-26

Mobile Usability Bad

59/100

zsr.sk Mobile Usability Test Quick Summary

priority - 40Use legible font sizes

The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.

The following text fragments have a small font size. Increase the font size to make them more legible.

Dnes je Piatok…2017 07:33:47 and 3 others render only 4 pixels tall (10 CSS pixels).

| and 1 others render only 4 pixels tall (10 CSS pixels).

Železničná infraštruktúra and 22 others render only 5 pixels tall (12 CSS pixels).

Eshop renders only 5 pixels tall (12 CSS pixels).

VÍTAME VÁS NA STRÁNKACH ŽSR and 1 others render only 5 pixels tall (14 CSS pixels).

ELIS od 11.12.…do 09.12.2017 renders only 5 pixels tall (14 CSS pixels).

Podmienky používania žel.siete and 8 others render only 4 pixels tall (11 CSS pixels).

Hlavným predme…nnosti ŽSR je: renders only 4 pixels tall (11 CSS pixels).

správa a prevá…štruktúry (ŽI) and 1 others render only 4 pixels tall (11 CSS pixels).

zriaďovanie a…ádiových sietí and 1 others render only 4 pixels tall (11 CSS pixels).

Odchod and 6 others render only 4 pixels tall (11 CSS pixels).

Len priame spojenia renders only 4 pixels tall (11 CSS pixels).

INFORMÁCIE PRE…JÚCU VEREJNOSŤ and 2 others render only 5 pixels tall (12 CSS pixels).

Staršie inform…íslušný mesiac and 14 others render only 4 pixels tall (11 CSS pixels).

Cestovný poriadok 2016/2017 renders only 4 pixels tall (11 CSS pixels).

Informácie o o…lovensko, a.s. renders only 4 pixels tall (11 CSS pixels).

CESTOVANIE PO SLOVENSKU renders only 5 pixels tall (12 CSS pixels).

ŽSR upozorňujú…čné priecestia and 12 others render only 4 pixels tall (11 CSS pixels).

VÝBER Z PONUKY renders only 5 pixels tall (12 CSS pixels).

The following text fragments have a small line height. Increase the line height to make them more legible.

Informácie o o…lovensko, a.s. has a line height of only 109% of the font size.

priority - 17Size 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="http://www.zsr…ml?page_id=123"></a> and 25 others are close to other tap targets.

The tap target <input type="image" name="Hľadať"> and 1 others are close to other tap targets.

The tap target <a href="http://www.zsr…ml?page_id=143" class="menu">O nás</a> and 7 others are close to other tap targets.

The tap target <a href="http://www.zsr.sk/4362" class="menu">Eshop |</a> is close to 1 other tap targets.

The tap target <a href="http://www.zsr…ml?page_id=358" class="left_text">Podmienky používania žel.siete</a> and 8 others are close to other tap targets.

The tap target <a href="http://www.zsr…ml?page_id=495">zriaďovanie a…ádiových sietí</a> and 1 others are close to other tap targets.

The tap target <input type="text" name="txtFrom"> and 2 others are close to other tap targets.

The tap target <input id="chbPriamSpoj" type="checkbox" name="chbPriamSpoj"> is close to 4 other tap targets.

The tap target <input type="text" name="txtDate"> and 1 others are close to other tap targets.

The tap target <input type="radio" name="IsDepTime0"> and 1 others are close to other tap targets.

The tap target <a href="http://www.zsr…l?page_id=4886">Cestovný poriadok 2016/2017</a> is close to 4 other tap targets.

The tap target <a href="http://www.zsr…l?page_id=5414">Cez nový želez…i jazdiť vlaky</a> and 12 others are close to other tap targets.

The tap target <a href="http://www.zsr…ml?page_id=495"></a> and 2 others are close to other tap targets.

The tap target <embed> is close to 1 other tap targets.

priority - 10Configure the viewport

Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.

priority - 3Avoid plugins

Your page uses plugins, which prevents portions of your page from being used on many platforms. Find alternatives for plugin based content to increase compatibility.

Find alternatives for the following Flash plugins.

http://www.zsr.sk/banner_ZSZ_200x50_ubytovanie.swf (200 x 9).

http://www.zsr.sk/banner_ZSZ_200x50_pannonia.swf (200 x 9).

http://www.zsr.sk/banner_ZSZ_200x50_cestovanie_2.swf (200 x 9).

priority - 3Size content to viewport

The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.

The page content is 1,013 CSS pixels wide, but the viewport is only 980 CSS pixels wide. The following elements fall outside the viewport:

The element <td>Dnes je Piatok…Vyhľadávanie</td> falls outside the viewport.
The element <a href="http://www.zsr…ml?page_id=127" class="menu">Kontakt</a> falls outside the viewport.
The element <div class="left">ELIS od 11.12.…do 09.12.2017</div> falls outside the viewport.
The element <div class="center_right">ELEKTRONICKÝ INFORMAČNÝ SYSTÉM</div> falls outside the viewport.
The element <div class="left_text">ELIS CP 2016/2…VÝBER Z PONUKY</div> falls outside the viewport.

zsr.sk HTML validation

Errors

Start tag seen without seeing a doctype first. Expected “<!DOCTYPE html>”.

Line: 1 Column: 1 - 6
"...<HTML> <HEAD..."

Bad value “0;url=https://www.zsr.sk” for attribute “content” on element “meta”: Expected a space character, but saw “u” instead.

Line: 3 Column: 3 - 64
"... <HEAD> <meta http-equiv="REFRESH" content="0;url=https://www.zsr.sk"> </HEA..."

Element “head” is missing a required instance of child element “title”.

Line: 4 Column: 1 - 7
"....zsr.sk"> </HEAD> <BODY..."

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zsr.sk Ping

Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.

zsr.sk TRACEROUTE

Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.

ZSR.SK Website Information

zsr.sk Website Information

Advertisement

zsr.sk Alexa Rank

zsr.sk whois

zsr.sk server information

Servers Location

zsr.sk desktop page speed rank

zsr.sk Desktop Speed Test Quick Summary

priority - 32Enable 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 314.8KiB (74% reduction).

priority - 18Leverage 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:

priority - 14Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 8 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 11Optimize images

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

Optimize the following images to reduce their size by 103.5KiB (60% reduction).

priority - 7Minify 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 67.7KiB (28% reduction).

priority - 2Prioritize 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.

priority - 1Minify 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 9.5KiB (15% reduction).

priority - 0Minify 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 1.2KiB (23% reduction).

priority - 0Reduce server response time

zsr.sk Desktop Resource Breakdown

zsr.sk mobile page speed rank

zsr.sk Mobile Speed Test Quick Summary

priority - 56Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 8 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 32Enable 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 314.8KiB (74% reduction).

priority - 28Leverage 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:

priority - 11Optimize images

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

Optimize the following images to reduce their size by 103.5KiB (60% reduction).

priority - 8Prioritize 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.

priority - 7Minify 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 67.7KiB (28% reduction).

priority - 1Minify 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 9.5KiB (15% reduction).

priority - 0Minify 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 1.2KiB (23% reduction).

priority - 0Reduce server response time

zsr.sk Mobile Resource Breakdown

zsr.sk mobile page usability

zsr.sk Mobile Usability Test Quick Summary

priority - 40Use legible font sizes

The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.

The following text fragments have a small font size. Increase the font size to make them more legible.

The following text fragments have a small line height. Increase the line height to make them more legible.

priority - 17Size 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.

priority - 10Configure the viewport

Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.

priority - 3Avoid plugins

Your page uses plugins, which prevents portions of your page from being used on many platforms. Find alternatives for plugin based content to increase compatibility.

Find alternatives for the following Flash plugins.

priority - 3Size content to viewport

The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.

The page content is 1,013 CSS pixels wide, but the viewport is only 980 CSS pixels wide. The following elements fall outside the viewport: