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bluetone.cz

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

Last scanned Jul 26, 2026, 11:19 AM

94

Overall score

Excellent

Summary

Jsme poskytovatelem unikátní televizní, rozhlasové a internetové infrastruktury. This website uses Google Analytics. SEO is good (80/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.

Jsme poskytovatelem unikátní televizní, rozhlasové a internetové infrastruktury. Převádíme technologické trendy do inovativních mediálních, telekomunikačních a IT infrastrukturních služeb.

Top issues to fix

6 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.

  • robots.txt not found

    SEO

    Publish /robots.txt with a Sitemap: directive to guide crawlers.

  • sitemap.xml not found

    SEO

    Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

  • 20 broken links on the page

    SEO

    Fix or remove broken links — they waste crawl budget and erode user trust.

80

SEO

4 issue(s) found

100

Performance

526 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.

Jsme poskytovatelem unikátní televizní, rozhlasové a internetové infrastruktury. Převádíme technologické trendy do inovativních mediálních, telekomunikačních a IT infrastrukturních služeb.

X (Twitter)InstagramLinkedIn

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

OpenGraph & Twitter Card

OpenGraph

og:title
Datové centrum, přenos dat, Cloud a IoT
og:description
Jsme poskytovatelem unikátní televizní, rozhlasové a internetové infrastruktury. Převádíme technologické trendy do inovativních mediálních, telekomunikačních a IT infrastrukturních služeb.
og:type
website
og:url
https://www.cra.cz/

Twitter Card

twitter:card
—
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

Google Analytics

Hosting & CDN

Hosting provider
—
CDN provider
—
IP address
—
ASN
—

DNS records

TypeValue
A—
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

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
34
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 · 20 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
Not found
Disallow rules
0
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Title longer than 60 characters
  • Meta description longer than 160 characters
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

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

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does bluetone.cz use?
bluetone.cz is built with Google Analytics.
Is bluetone.cz secure (HTTPS)?
Yes. bluetone.cz uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 1, 2026.
Who hosts bluetone.cz?
Hosting provider information for bluetone.cz is not available yet.
What is bluetone.cz's SEO score?
bluetone.cz scored 80/100 for SEO in the latest analysis (great).
What is bluetone.cz's overall website score?
bluetone.cz has an overall SiteGraph score of 94/100, combining SEO, performance, security, and accessibility.