What technology does cra.cz use?

cra.cz is built with Google Analytics.

Is cra.cz secure (HTTPS)?

Yes. cra.cz uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 1, 2026.

cra.cz is hosted on BlueTone-AS - RADIOKOMUNIKACE a.s., CZ.

What is cra.cz's SEO score?

cra.cz scored 90/100 for SEO in the latest analysis (excellent).

What is cra.cz's overall website score?

cra.cz has an overall SiteGraph score of 97/100, combining SEO, performance, security, and accessibility.

cra.cz

Datové centrum, přenos dat, Cloud a IoT | České Radiokomunikace

Last scanned Jul 21, 2026, 12:33 PM · 3 views

Overall score

Excellent

Top issues to fix

4 issues found

1 cookie without Secure/HttpOnly flags
Security
Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Title longer than 60 characters
SEO
Shorten the title to under 60 characters so search results don't truncate it.
Meta description longer than 160 characters
SEO
Trim the meta description to under 160 characters to avoid truncation in search results.
14 broken links on the page
SEO
Fix or remove broken links — they waste crawl budget and erode user trust.

Summary

Jsme poskytovatelem unikátní televizní, rozhlasové a internetové infrastruktury. This website uses Google Analytics hosted on BlueTone-AS - RADIOKOMUNIKACE a.s., CZ. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.

SEO

2 issue(s) found

100

Performance

376 ms

100

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

X (Twitter)Instagram LinkedIn

Meta tags

Title: Datové centrum, přenos dat, Cloud a IoT | České Radiokomunikace
Description: Jsme poskytovatelem unikátní televizní, rozhlasové a internetové infrastruktury. Převádíme technologické trendy do inovativních mediálních, telekomunikačních a IT infrastrukturních služeb.
Canonical: https://www.cra.cz/
Language: cs
Charset: UTF-8
Viewport: width=device-width, initial-scale=1.0, maximum-scale=1
Robots meta: index,follow,
Manifest: https://www.cra.cz/files/site-graphics/site.webmanifest

Technologies

Detected frameworks, languages, and tools.

Google Analytics

Hosting & CDN

Hosting provider: BlueTone-AS - RADIOKOMUNIKACE a.s., CZ
CDN provider: —
IP address: 82.99.169.74
ASN: AS25248 (BlueTone-AS - RADIOKOMUNIKACE a.s., CZ)

DNS records

Type	Value
A	82.99.169.74
AAAA	2a02:a40:200:169::68
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	Yes

TLS / SSL certificate

Version: TLS 1.3
Issuer: Google Trust Services
Subject: cra.cz
Valid from: Jun 3, 2026
Valid to: Sep 1, 2026
Days until expiry: 42
SAN domains: cra.cz, www.cra.cz

Security headers

Strict-Transport-SecurityEnabled
Content-Security-PolicyEnabled
X-Frame-OptionsEnabled
X-Content-Type-OptionsEnabled
Referrer-PolicyEnabled
Permissions-PolicyEnabled

Compression: gzip · 3 cookie(s) observed

Content & assets

Headings

H1 1 · H2 6 · H3 0

Links

38 internal · 18 external · 14 broken

Images

35 total · 0 missing alt

Scripts / Styles

9 scripts · 1 stylesheets

JS / CSS size

9.7 KB · 0 B

Page size

107 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 0
sitemap.xml: Found
URLs in sitemap: -1

SEO issues

Title longer than 60 characters
Meta description longer than 160 characters

Scan details

Requested URL: https://cra.cz
Final URL: https://www.cra.cz/
HTTP status: 200
HTTP version: HTTP/1.1
Response time: 374 ms
HTML size: 107 KB
Redirect chain: https://cra.cz → https://www.cra.cz/

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