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Whois & Analysis for

Nov 21, 2019 8:02 am UTC


The owner's whois contact information is public.
• Contact Name
CESNET, z.s.p.o.
• Organization
CESNET, z.s.p.o.
• Address
Zikova 4 Praha 6 160 00 CZ
• Domain Registrar
Desktop screen Desktop screenshot for


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• Domain Owner
CESNET, z.s.p.o. See more
• Category
Technology & Computing
• Online since
October 6, 1996 Explore Wayback Machine
• Age
26 years, 8 months, 4 days
• Alexa Rank
#429.476, is in the world's top 1 million websites


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SSL Certificate
This website is not SSL secured (HTTPS), the certificate issued by TERENA has expired on September 13, 2021.
Title Tag
CESNET | CESNET, zájmové sdružení právnických osob
Length: 56 (recommended: 10 to 70)
Meta Description
Sdružení CESNET bylo založeno v roce 1996 vysokými školami a Akademií věd ČR. Zabývá se výzkumem a vývojem informačních a komunikačních technologií, buduje a rozvíjí národní e-infrastrukturu CESNET určenou pro výzkum a vzdělávání. Jedná se o komplexní národní IT infrastrukturu. Základními komponentami jsou komunikační infrastruktura (síť CESNET2), gridová infrastruktura pro náročné výpočty, infrastruktura datových úložišť, infrastruktura pro vzdálenou spolupráci.
Length: 517 (recommended: 50 to 160)
Google preview
Desktop Version

CESNET | CESNET, zájmové sdružení právnických osob

Sdružení CESNET bylo založeno v roce 1996 vysokými školami a Akademií věd ČR. Zabývá se výzkumem a vývojem informačních a komunikačních technologií, buduje a rozvíjí...

Mobile Version

CESNET | CESNET, zájmové sdružení právnických osob

Sdružení CESNET bylo založeno v roce 1996 vysokými školami a Akademií věd ČR. Zabývá se výzkumem a vývojem informačních a komunika...

Great, language/character encoding is specified: utf-8
URL Resolve

Great, a redirect is in place to redirect traffic from your non-preferred domain. All versions of your page point to the same URL.

URL Parameters
Great, the domain URLs look clean.
Attribute Value
viewport width=device-width


The owner has associated the following topics to the website.

The results of our semantic analysis are shown below using the website's language.

They are the main concepts covered by

Each concept has a confidence score. The higher it is, the more important the topic is relative to the page.

WEBSITE SPEED website speed is slow. Page speed is important for visitors and search engines.

Get insights to improve your page loading time.

Page Loading Time


This domain loads at the median speed of 1.4 seconds.

Speed Percentile

66% is faster than approximately 66 percent of the web. Your website page speed needs to be as fast as you can make it, without compromising the customer experience.

A good goal to achieve is a loading time of 2 seconds on desktop and mobile devices.


Page on which speed is tested live:

Chrome User Experience Report Results

Lighthouse Results


This website is ranked #429.476 by Alexa.

This rank is traffic based. The lower the rank is, the better the domain is ranked.

Daily visitors by country

  • daily visitors distribution - Total: 1 country
  • Flag for Czech RepublicCzech Republic (96.3%)
  • Flaf icon for other countryOthers (3.7%)

Traffic country ranks

Country Rank
Flag for Czech RepublicCzech Republic #1.994


Doctype HTML5 Arrow Responsive website, mobile-friendly. Arrow

Mobile Rendering

This website seems to be optimized for Mobile Visitors.

How looks like on a mobile device such as an iPhone.

How looks like on a tablet such as an iPad.

Main colors used

These are the main HTML color codes used by this website. Arrow
  • 21% #ffffff
  • 17% #f0f0f0
  • 16% #002030
  • 8% #001020
  • 7% #005080
  • 6% #0060a0
  • 6% #003050
  • 5% #004060
  • 3% #2070a0
  • 3% #0070d0
  • 2% #f0ffff
  • 2% #006090

Text/code ratio's text/code ratio is 10.74%. It's a bit low. Consider raising it by adding more text content of value for your visitors, or keeping your code clean.
Text / Code Ratio 10.74%

A good text to HTML ratio is anywhere from 25 to 70%.

This percentage refers to the visible text ratio, as opposed to HTML elements, image tags and other non-visible information.

Main HTML tags

Headings Arrow up

Great, we found headings on this page.

  • <H1> 0
  • <H2> 1
  • <H3> 11
  • <H4> 0
  • <H5> 0
  • <H6> 0

However, you have not defined a top level heading, or <H1>. It is used to define the most important heading.

We recommend using one top level heading to set up a semantic relationship between that heading and the remainder of the content on a page. It clearly describes to the readers and the search engines what it is about.

2nd level heading
3rd level heading
Ocenění ıaam young scientist
Týden vědy a techniky 2019
Cesnet zrychlil připojení fyzikálního ústavu av Čr na 100 gbps
Konference o nových ıp technologiích
Vyhodnocení the catch 2019
Alt attributes Arrow up


This is an overview of your homepage shares on social networks.

You're doing quiet good on social media!

Social shares are a key signal, among many others, that search engines use to evaluate the rankings of a website. Asking people to share your pages, adding visible social share buttons and make great quality content are 3 of the most powerful ways to grow your social presence.

  • Facebook iconFacebook
  • Total Engagement 231
  • Likes 9
  • Shares 156
  • Comments 66


Domain Registrar REG-ACTIVE24
Registration Date 10/06/1996 26 years, 8 months, 4 days ago
Last Modified 09/06/2018 4 years, 9 months, 3 days ago
Expiration Date 10/29/2020 Expired
Nameservers Arrow up
Host IP Address Country Flag for CzechiaCzechia Flag for CzechiaCzechia Flag for CzechiaCzechia


Server map
  • Service Provider (ISP)
  • IP Address
  • Country
  • Flag for CzechiaCzechia
  • Region
  • Hlavni mesto Praha , Praha 6
  • Latitude and Longitude
  • 50.1017 : 14.3908