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SGSiteGraph

cuni.cz

Univerzita Karlova

Last scanned Jul 21, 2026, 12:33 PM · 2 views

72

Overall score

Fair

Top issues to fix

12 issues found · 4 high priority

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Missing meta description

    SEO

    Add a ~150-character meta description to control your search-result snippet and lift click-through rate.

  • No H1 heading found

    SEO

    Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.

  • Over half of images are missing alt text

    Accessibility

    Add alt attributes to images — screen readers depend on them, and they help image SEO.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

+6 more issues — details in the sections below.

Summary

This website uses Nginx. SEO is fair (55/100) and accessibility is fair (60/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Missing meta description.

55

SEO

6 issue(s) found

100

Performance

975 ms

75

Security

HTTPS & header checks

60

Accessibility

2 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.

Contact

Email, phone, and address published on this site's own pages.

Meta tags

Title
Univerzita Karlova
Description
Canonical
Language
en
Charset
UTF-8
Viewport
width=device-width, initial-scale=1.0
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
og:description
og:type
website
og:url
https://cuni.cz/UK-1.html

Twitter Card

twitter:card
summary_large_image
twitter:title
UK
twitter:description

Technologies

Detected frameworks, languages, and tools.

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
Hellenic Academic and Research Institutions CA
Subject
www.cuni.cz
Valid from
Aug 25, 2025
Valid to
Aug 25, 2026
Days until expiry
34
SAN domains
www.cuni.cz, cuni.cz

Security headers

  • Strict-Transport-SecurityEnabled
  • Content-Security-PolicyMissing
  • X-Frame-OptionsMissing
  • X-Content-Type-OptionsMissing
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 0 · H2 2 · H3 4

Links

149 internal · 56 external · 17 broken

Images

27 total · 22 missing alt

Scripts / Styles

8 scripts · 2 stylesheets

JS / CSS size

783 B · 0 B

Page size

62.6 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Missing meta description
  • Missing canonical link
  • No H1 heading found
  • No structured data (JSON-LD) found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • Over half of images are missing alt text
  • No H1 heading found

Scan details

Requested URL
https://cuni.cz
Final URL
https://cuni.cz
HTTP status
200
HTTP version
HTTP/2
Response time
974 ms
HTML size
62.6 KB
Redirect chain
https://cuni.cz

Frequently asked questions

What technology does cuni.cz use?
cuni.cz is built with PHP, jQuery, Nginx.
Is cuni.cz secure (HTTPS)?
Yes. cuni.cz uses TLS 1.3 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Aug 25, 2026.
Who hosts cuni.cz?
Hosting provider information for cuni.cz is not available yet.
What is cuni.cz's SEO score?
cuni.cz scored 55/100 for SEO in the latest analysis (fair).
What is cuni.cz's overall website score?
cuni.cz has an overall SiteGraph score of 72/100, combining SEO, performance, security, and accessibility.