certum.pl Website Information

Daily Unique Visits: 3,743

Daily Page Views: 14,972

Income Per Day: $42

Estimated Value: $22,680

This website is located in Poland and is using following IP address 213.222.201.147. See the complete list of popular websites hosted in Poland.

certum.pl is registered under .PL top-level domain. Please check other sites in .PL zone.

Website certum.pl is using the following name servers:

dns2.easydns.net
dns3.easydns.org
dns1.easydns.com
dns4.easydns.info

and is probably hosted by Asseco Data Systems S.A.. See the full list of other websites hosted by Asseco Data Systems S.A..

The highest website certum.pl position in Alexa rank database was 276330 and the lowest rank position was 412573. Current position of certum.pl in Alexa rank database is 335313.

Desktop speed score of certum.pl (82/100) is better than the results of 74.03% of other sites and shows that the page is performing great on desktop computers.

Mobile usability score of certum.pl (65/100) is better than the results of 13.11% of other sites and means that the page is not mobile-friendly.

Mobile speed score of certum.pl (67/100) is better than the results of 70.58% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

certum.pl 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.

certum.pl 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.

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certum.pl server information

Servers Location

certum.pl desktop page speed rank

Last tested: 2018-12-03

Desktop Speed Medium

82/100

certum.pl Desktop Speed Test Quick Summary

priority - 8Optimize images

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

Optimize the following images to reduce their size by 82.3KiB (37% reduction).

Compressing https://www.certum.pl/pl/data/certum_pl.jpg could save 27.6KiB (51% reduction).
Compressing https://www.certum.pl/pl/data/certum_pl_03.jpg could save 18.6KiB (31% reduction).
Compressing https://www.certum.pl/pl/data/certum_pl_2_wyciety.jpg could save 11.6KiB (29% reduction).
Compressing https://www.certum.pl/pl/data/filmy_instruktazowe-3.jpg could save 7.9KiB (38% reduction).
Compressing and resizing https://www.certum.pl/pl/data/datasystems_logo_319_v2.png could save 4.9KiB (62% reduction).
Compressing and resizing https://www.certum.pl/pl/data/ssl1.png could save 4.8KiB (45% reduction).
Compressing and resizing https://www.certum.pl/pl/data/ssl3.png could save 2.8KiB (31% reduction).
Compressing and resizing https://www.certum.pl/pl/data/ssl2.png could save 2.6KiB (29% reduction).
Compressing https://www.certum.pl/pl/data/E-mailidb.png could save 944B (16% reduction).
Compressing https://www.certum.pl/pl/data/slider2-tab3-bg-3.png could save 555B (19% reduction).

priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 30 blocking script resources and 15 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://www.certum.pl/pl/data/assets/js/jquery.js
https://www.certum.pl/pl/data/assets/js/loadcss.js
https://www.certum.pl/pl/data/assets/js/swfobject.js
https://www.certum.pl/pl/data/assets/js/jquery.cycle.js
https://www.certum.pl/pl/data/assets/js/jquery.fadeSliderToggle.js
https://www.certum.pl/pl/data/assets/js/jquery.treeview.js
https://www.certum.pl/pl/data/assets/js/jquery.prettyPhoto.js
https://www.certum.pl/pl/data/assets/js/jquery.fancybox.pack.js
https://www.certum.pl/pl/data/assets/js/html5shiv.js
https://www.certum.pl/pl/data/assets/js/selectivizr-min.js
https://www.certum.pl/pl/data/assets/js/swipe.js
https://www.certum.pl/pl/data/assets/js/global.js
https://www.certum.pl/pl/data/assets/js/blackandwhite.js
https://www.certum.pl/pl/data/assets/js/ssltools.js
https://www.certum.pl/pl/wp-includes/js/jquery/jquery.js?ver=1.12.4
https://www.certum.pl/pl/wp-includes/js/jquery/jqu…grate.min.js?ver=1.4.1
https://www.certum.pl/pl/wp-content/plugins/jquery….minified.js?ver=4.8.7
https://www.certum.pl/pl/wp-content/plugins/jquery…ry.cookie.js?ver=4.8.7
https://www.certum.pl/pl/wp-content/plugins/jquery…rdion.2.9.js?ver=4.8.7
https://www.certum.pl/pl/wp-content/plugins/wp-pos….carousel.js?ver=2.0.0
https://www.certum.pl/pl/wp-content/plugins/wp-pos…heel.min.js?ver=3.1.12
https://www.certum.pl/pl/data/assets/js/cookie.js
https://www.certum.pl/pl/data/assets/js/sticky.js
https://www.certum.pl/pl/data/assets/js/cookie.js
https://www.certum.pl/pl/wp-content/plugins/contac…?ver=3.51.0-2014.06.20
https://www.certum.pl/pl/wp-content/plugins/contac…/js/scripts.js?ver=4.7
https://www.certum.pl/pl/wp-content/plugins/wp-acc…elper.min.js?ver=1.0.0
https://www.certum.pl/pl/wp-includes/js/jquery/ui/effect.min.js?ver=1.11.4
https://www.certum.pl/pl/wp-content/plugins/popups…js/public.js?ver=1.9.2
https://www.certum.pl/pl/wp-includes/js/wp-embed.min.js?ver=4.8.7

Optimize CSS Delivery of the following:

https://www.certum.pl/pl/data/assets/css/prettyPhoto.css
https://www.certum.pl/pl/data/assets/css/style.css
https://www.certum.pl/pl/wp-content/plugins/siteor…s/front.css?ver=2.4.25
https://www.certum.pl/pl/wp-content/plugins/contac…css/styles.css?ver=4.7
https://www.certum.pl/pl/wp-content/plugins/cf7-co…ds/style.css?ver=1.3.4
https://www.certum.pl/pl/wp-content/plugins/wp-acc…lper.min.css?ver=4.8.7
https://www.certum.pl/pl/wp-content/plugins/wp-pos…carousel.css?ver=4.8.7
https://www.certum.pl/pl/wp-content/plugins/popups…s/public.css?ver=1.9.2
https://www.certum.pl/pl/wp-content/plugins/jquery…idget_id=10&skin=menu2
https://www.certum.pl/pl/wp-content/plugins/jquery…dget_id=11&skin=oferta
https://www.certum.pl/pl/wp-content/plugins/jquery…idget_id=12&skin=menu2
https://www.certum.pl/pl/wp-content/plugins/jquery…idget_id=13&skin=menu2
https://www.certum.pl/pl/wp-content/plugins/jquery…idget_id=14&skin=menu2
https://www.certum.pl/pl/wp-content/plugins/jquery…idget_id=15&skin=menu2
https://www.certum.pl/pl/wp-content/plugins/wp-pos…s/certum.css?ver=4.8.7

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.

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 67% of the final above-the-fold content could be rendered with the full HTML response.

Click to see the screenshot with only the HTML response:

priority - 1Leverage 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://script.crazyegg.com/pages/scripts/0077/2537.js (3 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 0Enable 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 3.1KiB (68% reduction).

Compressing https://tech.certum.pl/errors/404/?ref=https://www…l/&dhost=www.certum.pl could save 1.5KiB (68% reduction).
Compressing https://tech.certum.pl/errors/404/?ref=https://www…ss&dhost=www.certum.pl could save 1.5KiB (68% reduction).

priority - 0Minify 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 2.8KiB (24% reduction).

Minifying https://www.certum.pl/pl/wp-content/plugins/popups…js/public.js?ver=1.9.2 could save 2.3KiB (28% reduction) after compression.
Minifying https://www.certum.pl/pl/wp-content/plugins/contac…/js/scripts.js?ver=4.7 could save 502B (14% reduction) after compression.

priority - 0Minify 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 704B (16% reduction).

Minifying https://tech.certum.pl/errors/404/?ref=https://www…l/&dhost=www.certum.pl could save 352B (16% reduction).
Minifying https://tech.certum.pl/errors/404/?ref=https://www…ss&dhost=www.certum.pl could save 352B (16% 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 284B (21% reduction).

Minifying https://www.certum.pl/pl/wp-content/plugins/popups…s/public.css?ver=1.9.2 could save 284B (21% reduction) after compression.

certum.pl Desktop Resource Breakdown

Total Resources	114
Number of Hosts	9
Static Resources	101
JavaScript Resources	33
CSS Resources	15

certum.pl mobile page speed rank

Last tested: 2018-12-03

Mobile Speed Medium

67/100

certum.pl Mobile Speed Test Quick Summary

priority - 32Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 30 blocking script resources and 15 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

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.

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 57% of the final above-the-fold content could be rendered with the full HTML response.

Click to see the screenshot with only the HTML response:

priority - 7Optimize images

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

Optimize the following images to reduce their size by 67.3KiB (37% reduction).

priority - 1Leverage 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://script.crazyegg.com/pages/scripts/0077/2537.js (3 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 0Enable 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 3.1KiB (68% reduction).

priority - 0Minify 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 2.8KiB (24% reduction).

priority - 0Minify 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 704B (16% 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 284B (21% reduction).

Minifying https://www.certum.pl/pl/wp-content/plugins/popups…s/public.css?ver=1.9.2 could save 284B (21% reduction) after compression.

certum.pl Mobile Resource Breakdown

Total Resources	114
Number of Hosts	9
Static Resources	101
JavaScript Resources	33
CSS Resources	15

certum.pl mobile page usability

Last tested: 2018-12-03

Mobile Usability Medium

65/100

certum.pl Mobile Usability Test Quick Summary

priority - 50Size 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 1,024 CSS pixels wide, but the viewport is only 412 CSS pixels wide. The following elements fall outside the viewport:

The element <span>Bezpieczeństwo…aufanie online</span> falls outside the viewport.
The element <a href="/pl/wsparcie/c…cie_techniczne" class="support">Wsparcie techniczne</a> falls outside the viewport.
The element <a href="/pl/cert_ofert…podpis_aktywuj" class="activation">Aktywacja e-podpisu</a> falls outside the viewport.
The element <a href="/pl/cert_ofert…_elektroniczny">E-Podpis</a> falls outside the viewport.
The element <a href="/pl/cert_ofert…abezp_serwerow">Certum SSL</a> falls outside the viewport.
The element <a href="/pl/cert_ofert…alifikowane_ID">Certyfikaty E-mail ID</a> falls outside the viewport.
The element <a href="#">Oferta</a> falls outside the viewport.
The element <a href="/pl/cert_konta…e_teleadresowe">Kontakt</a> falls outside the viewport.
The element <a href="#" class="search-link"> falls outside the viewport.
The element <a href="#" class="slider-next"> falls outside the viewport.
The element <img src="/pl/data/certu…_2_wyciety.jpg" class="imgtopleft 0"> falls outside the viewport.
The element <li class="">JEDZ</li> falls outside the viewport.
The element <a href="#">Code Signing</a> falls outside the viewport.
The element <a href="#">Odnów e-podpis</a> falls outside the viewport.
The element <a href="#">Aktywuj e-podpis</a> falls outside the viewport.
The element <img src="/pl/data/slider2-img1.jpg"> falls outside the viewport.
The element <h4>Podpis elektroniczny CERTUM</h4> falls outside the viewport.
The element <span>Stworzony, aby…ić Twoją pracę</span> falls outside the viewport.
The element <strong>Odnów</strong> falls outside the viewport.
The element <span>118,99 zł</span> falls outside the viewport.
The element <small>netto/rok</small> falls outside the viewport.
The element <a href="/pl/cert_ofert…ie_certyfikatu" class="buy-now">Odnów</a> falls outside the viewport.
The element <strong>Kup nowy</strong> falls outside the viewport.
The element <span>239,00 zł</span> falls outside the viewport.
The element <small>netto/rok</small> falls outside the viewport.
The element <a href="https://sklep.…onicznego.html" class="buy-now">Kup</a> falls outside the viewport.
The element <a href="/pl/cert_ofert…_elektroniczny">Więcej informa…elektronicznym</a> falls outside the viewport.
The element <h3>Znajdź sprzedawcę</h3> falls outside the viewport.
The element <p class="lead">Sieć partnerska.</p> falls outside the viewport.
The element <p>Z CERTUM współ…oją tożsamość.</p> falls outside the viewport.
The element <a href="/pl/wsparcie/c…estawu_certum/"> falls outside the viewport.
The element <h3>Certyfikaty</h3> falls outside the viewport.
The element <img src="/pl/upload_mod…www_certum.png"> falls outside the viewport.
The element <img src="/pl/data/certificate-adobe.jpg"> falls outside the viewport.
The element <img src="/pl/data/certi…te-iso9001.jpg"> falls outside the viewport.
The element <a href="/pl/data/Polit…19.10.2016.pdf">Polityce prywatności</a> falls outside the viewport.
The element <a href="#">Nie pokazuj te…w przyszłości</a> falls outside the viewport.
The element <a href="/pl/aktualnosci">Aktualności</a> falls outside the viewport.
The element <a href="https://www.ce…-ssl-w-polsce/">Certum Liderem SSL w Polsce!</a> falls outside the viewport.
The element <div class="owl-next">następny</div> falls outside the viewport.
The element <a href="/pl/wsparcie/c…cie_techniczne">Wsparcie techniczne</a> falls outside the viewport.
The element <strong>801 540 340</strong> falls outside the viewport.
The element <strong>91 4801 340</strong> falls outside the viewport.
The element <a href="mailto:infolinia@certum.pl">e-mail: infolinia@certum.pl</a> falls outside the viewport.
The element <a href="/pl/cert_kontakt_contact_form">Napisz do nas</a> falls outside the viewport.
The element <div class="textwidget">CertumWszelkie…a zastrzeżone.</div> falls outside the viewport.
The element <a href="/pl/cert_wiedza_listy_crl">Listy CRL</a> falls outside the viewport.
The element <a href="/pl/cert_wiedz…zytorium_pl_en">Repozytorium</a> falls outside the viewport.
The element <a href="/pl/cert_info_…ormacje_prawne">Informacje prawne</a> falls outside the viewport.
The element <a href="https://www.as…tnosci_ADS.pdf">Polityka prywatności</a> falls outside the viewport.
The element <a href="/pl/cert_info_mapa_serwisu">Mapa serwisu</a> falls outside the viewport.
The element <a href="https://www.certum.eu/" class="lang en"> falls outside the viewport.

priority - 5Size 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 id="page-logo" href="/pl/">Strona główna</a> is close to 1 other tap targets.

The tap target <a href="https://sklep.certum.pl" class="shop">Sklep</a> is close to 1 other tap targets.

The tap target <a href="/pl/cert_ofert…_elektroniczny">E-Podpis</a> and 3 others are close to other tap targets.

The tap target <a href="#" class="search-link"> is close to 1 other tap targets.

The tap target <a href="#" class="slider-prev"> is close to 1 other tap targets.

The tap target <a href="https://www.ce…spolek-do-krs/"></a> is close to 1 other tap targets.

The tap target <a href="#">e-KRS</a> is close to 1 other tap targets.

The tap target <a href="#">JEDZ</a> and 3 others are close to other tap targets.

The tap target <a href="/pl/cert_ofert…ie_certyfikatu" class="buy-now">Odnów</a> is close to 1 other tap targets.

The tap target <a href="#"> is close to 1 other tap targets.

The tap target <a href="/pl/cert_onas_marka_CERTUM">Poznaj markę Certum</a> and 5 others are close to other tap targets.

The tap target <a href="https://www.fa…k.com/assecods"> is close to 2 other tap targets.

The tap target <a href="https://twitter.com/assecods"> is close to 2 other tap targets.

The tap target <a href="https://www.li…mpany/assecods"> is close to 1 other tap targets.

The tap target <div id="spu-3634" class="spu-box spu-c…red spu-total-">Szanowna Użytk…ka prywatności</div> is close to 1 other tap targets.

The tap target <button class="spu-close-popu…e right custom">Przejdź do serwisu</button> is close to 2 other tap targets.

certum.pl HTML validation

Errors

A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.

Line: 6 Column: 1 - 22
"...width" /> <meta charset="UTF-8"> <met..."

The “charset” attribute on the “link” element is obsolete. Use an HTTP Content-Type header on the linked resource instead.

Line: 16 Column: 1 - 149
"...VrY2ph"/> <link charset="utf-8" title="prettyPhoto main stylesheet" media="screen" href="/pl/data/assets/css/prettyPhoto.css" rel="stylesheet" type="text/css"> <lin..."

Element “title” must not be empty.

Line: 36 Column: 8 - 15
"...t> <title></title> <..."

Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.

Line: 78 Column: 1 - 74
"...</script> <link rel='https://api.w.org/' href='https://www.certum.pl/pl/wp-json/' /> <link..."

Element “form” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)

Line: 226 Column: 1 - 88
"..."> <form role="search" method="get" class="search-form" action="https://www.certum.pl/pl/"> <inp..."

Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)

Line: 242 Column: 218 - 224
"...xtwidget"><style> #slid..." Line: 316 Column: 105 - 111
"...xtwidget"><style> #kom-..." Line: 926 Column: 1 - 7
"...</script> <style> ..."

Bad value “_gaq.push(['_trackEvent', 'baner', 'Click', 'KRS]);” for attribute “onclick” on element “a”: unterminated string literal

Line: 258 Column: 1 - 162
"..."single"> <a href="https://www.certum.pl/pl/aktualnosci/elektroniczne-skladanie-sprawozdania-spolek-do-krs/ " onclick="_gaq.push(['_trackEvent', 'baner', 'Click', 'KRS]);"><img a..."

Bad value “_gaq.push(['_trackEvent', 'CS baner', 'Click', 'Jedz]);” for attribute “onclick” on element “a”: unterminated string literal

Line: 262 Column: 1 - 202
"..."single"> <a href="https://sklep.certum.pl/uslugi-kwalifikowane/zestawy-do-podpisu-elektronicznego/podpis-kwalifikowany-dla-dokumentow-jedz.html" onclick="_gaq.push(['_trackEvent', 'CS baner', 'Click', 'Jedz]);"><img a..."

Bad value “_gaq.push(['_trackEvent', 'CS baner', 'Click', 'rodo]);” for attribute “onclick” on element “a”: unterminated string literal

Line: 265 Column: 1 - 236
"..."single"> <a href="https://sklep.certum.pl/bezpieczenstwo-danych/certyfikaty-code-signing.html?utm_source=MainPage_certum_pl&utm_medium=Baner&utm_campaign=code_signing_cloud_pl" onclick="_gaq.push(['_trackEvent', 'CS baner', 'Click', 'rodo]);"><img alt..."

Bad value “_gaq.push(['_trackEvent', 'rodo', 'Click', 'rodo]);” for attribute “onclick” on element “a”: unterminated string literal

Line: 268 Column: 1 - 81
"..."single"> <a href="/pl/rodo" onclick="_gaq.push(['_trackEvent', 'rodo', 'Click', 'rodo]);"><img a..."

Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.

Line: 403 Column: 3 - 183
"...kat</p> <a onclick="_gaq.push(['_trackEvent', 'komunikat home', 'Click', 'Certum']);" href="https://www.certum.pl/pl/wsparcie/cert_wiedza_podpis_elektroniczny_instalacja_zestawu_certum/" />zobacz..."

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Line: 535 Column: 183 - 222
"...ng: 0px;"><img src="/pl/data/banner_footer_1.png"></a> <..." Line: 855 Column: 73 - 135
"...op: 0px;"><img src="/pl/data/datasystems_logo_319_v2.png" width="130px"/></p> <..."

Bad value “_gaq.push(['_trackEvent', 'footer, 'Click', 'Szkolenie z podpisu elektronicznego-footer']);” for attribute “onclick” on element “a”: missing ] after element list

Line: 545 Column: 1 - 185
"... 200px" > <a href="/pl/wsparcie/cert_wiedza_podpis_elektroniczny_instalacja_zestawu_certum/" onclick="_gaq.push(['_trackEvent', 'footer, 'Click', 'Szkolenie z podpisu elektronicznego-footer']);"></a> <..."

Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)

Line: 703 Column: 63 - 85
"...opups/ --><style type="text/css"> #spu-..."

Bad value “130px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Line: 855 Column: 73 - 135
"...op: 0px;"><img src="/pl/data/datasystems_logo_319_v2.png" width="130px"/></p> <..."

Element “ul” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)

Line: 876 Column: 1 - 4
"...wać.</li> <ul> </div..."

End tag “div” seen, but there were open elements.

Line: 877 Column: 1 - 6
".../li> <ul> </div> <div ..."

Unclosed element “ul”.

Line: 876 Column: 1 - 4
"...wać.</li> <ul> </div..." Line: 861 Column: 1 - 4
"... iż: </p> <ul> <li>A..."

Warnings

Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.

Line: 257 Column: 1 - 24
"...ntainer"> <section class="single"> <a hr..." Line: 261 Column: 1 - 24
"...ection> <section class="single"> <a hr..." Line: 264 Column: 1 - 24
"...section> <section class="single"> <a hr..." Line: 267 Column: 1 - 24
"...section> <section class="single"> <a hr..." Line: 273 Column: 1 - 24
"...ction>--> <section class="single"> <a hr..." Line: 281 Column: 1 - 24
".../section> <section class="single"> <a hr..." Line: 410 Column: 105 - 149
"...xtwidget"><section class="slider layout2" id="slider2"> <div ..." Line: 534 Column: 1 - 46
"...="boxes"> <section class="single" style="height: 200px"> <a hr..." Line: 544 Column: 1 - 51
".../section> <section class="single new" style="height: 200px" > <a hr..." Line: 583 Column: 10 - 58
"... <section id="text-12" class="widget widget_text"> <di..." Line: 638 Column: 44 - 92
"...n> <section id="text-13" class="widget widget_text"> <di..." Line: 643 Column: 9 - 57
"...> <section id="text-14" class="widget widget_text"> <di..." Line: 652 Column: 21 - 69
"...n> <section id="text-15" class="widget widget_text"> <di..." Line: 578 Column: 1 - 26
"...st-## --> <section id="page-footer"> <foo..."

Empty heading.

Line: 639 Column: 1 - 4
"...support"> <h4></h4> ..."

The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.

Line: 645 Column: 3 - 60
"...blank"> <img src="/pl/data/seal.png" alt="CERTUM Seal" border="0"> </a>..."

Text run is not in Unicode Normalization Form C.

Line: 862 Column: 5 - 129
"... <ul> <li>Administratorem Pani/Pana danych osobowych jest Asseco Data Systems S.A. z siedzibą w Gdyni, ul. Podolska 21, 81-321 Gdynia;</li> ..."

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certum.pl 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.

certum.pl 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.

CERTUM.PL Podpis Elektroniczny, Certyfikaty SSL, Certyfikaty S/MIME

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certum.pl Desktop Speed Test Quick Summary

priority - 8Optimize images

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

Optimize the following images to reduce their size by 82.3KiB (37% reduction).

priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 30 blocking script resources and 15 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

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 - 1Leverage 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 - 0Enable 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 3.1KiB (68% reduction).

priority - 0Minify 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 2.8KiB (24% reduction).

priority - 0Minify 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 704B (16% 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 284B (21% reduction).

certum.pl Desktop Resource Breakdown

certum.pl mobile page speed rank

certum.pl Mobile Speed Test Quick Summary

priority - 32Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 30 blocking script resources and 15 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

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 - 7Optimize images

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

Optimize the following images to reduce their size by 67.3KiB (37% reduction).

priority - 1Leverage 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 - 0Enable 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 3.1KiB (68% reduction).

priority - 0Minify 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 2.8KiB (24% reduction).

priority - 0Minify 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 704B (16% 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 284B (21% reduction).

certum.pl Mobile Resource Breakdown

certum.pl mobile page usability

certum.pl Mobile Usability Test Quick Summary

priority - 50Size 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 1,024 CSS pixels wide, but the viewport is only 412 CSS pixels wide. The following elements fall outside the viewport:

priority - 5Size 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.

certum.pl HTML validation

Errors

A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.

The “charset” attribute on the “link” element is obsolete. Use an HTTP Content-Type header on the linked resource instead.

Element “title” must not be empty.

Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.

Element “form” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)

Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)

Bad value “_gaq.push(['_trackEvent', 'baner', 'Click', 'KRS]);” for attribute “onclick” on element “a”: unterminated string literal

Bad value “_gaq.push(['_trackEvent', 'CS baner', 'Click', 'Jedz]);” for attribute “onclick” on element “a”: unterminated string literal

Bad value “_gaq.push(['_trackEvent', 'CS baner', 'Click', 'rodo]);” for attribute “onclick” on element “a”: unterminated string literal