What technology does osu.cz use?

osu.cz is built with PHP, jQuery, Meta Pixel, Apache.

Is osu.cz secure (HTTPS)?

Yes. osu.cz uses TLS 1.3 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Sep 8, 2026.

Hosting provider information for osu.cz is not available yet.

What is osu.cz's SEO score?

osu.cz scored 80/100 for SEO in the latest analysis (great).

What is osu.cz's overall website score?

osu.cz has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.

osu.cz

Ostravská univerzita

Last scanned Jul 26, 2026, 12:19 PM

Overall score

Great

Summary

Ostravská univerzita - Oficiální internetové stránky Ostravské univerzity. This website uses Apache. SEO is good (80/100) and accessibility is excellent (100/100). Security scores good (85/100) and performance good (80/100). Top issue: No structured data (JSON-LD) found.

Ostravská univerzita - Oficiální internetové stránky Ostravské univerzity.

Top issues to fix

7 issues found · 1 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 X-Content-Type-Options header
Security
Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
2 cookies 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.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich 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.

+1 more issue — details in the sections below.

SEO

3 issue(s) found

Performance

1.81 s

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.

Ostravská univerzita - Oficiální internetové stránky Ostravské univerzity.

YouTube Instagram X (Twitter)Instagram Facebook

Meta tags

Title: Ostravská univerzita
Description: Ostravská univerzita - Oficiální internetové stránky Ostravské univerzity.
Canonical: https://www.osu.cz
Language: cs
Charset: utf-8
Viewport: width=device-width, initial-scale=1
Robots meta: all,follow
Manifest

Technologies

Detected frameworks, languages, and tools.

PHP jQuery Meta Pixel Apache

Hosting & CDN

Hosting provider: —
CDN provider: —
IP address: —
ASN: —

DNS records

Type	Value
A	—
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Hellenic Academic and Research Institutions CA
Subject: wanda.osu.cz
Valid from: Sep 8, 2025
Valid to: Sep 8, 2026
Days until expiry: 41
SAN domains: wanda.osu.cz, urs.osu.eu, studiagermanistica.osu.eu, prf.osu.cz, pyramida.osu.cz, library.osu.eu, www.urs.osu.eu, refresh.osu.cz, pdf.osu.eu, dezinfo-opjak.osu.cz, offices.osu.eu, www.osu.cz, osu.eu, prf.osu.eu, visnep.osu.cz, lf1.osu.cz, pyramida.osu.eu, urs.osu.cz, poradenske.osu.cz, refresh.osu.eu, www.prodejna.osu.cz, wifi.osu.cz, www.orlova2023.osu.cz, www.urs.osu.cz, www.news.osu.cz, lf.osu.cz, menza.osu.cz, www.prf.osu.eu, oushop.osu.cz, lf.osu.eu, rektorat.osu.cz, prodejna.osu.eu, zakarierou.osu.cz, oupener.osu.cz, prodejna.osu.cz, pdf.osu.cz, mojeip6.osu.cz, www.pdf.osu.eu, www.osu.eu, mikrotikacademy.osu.cz, prf1.osu.cz, menza.osu.eu, studiaslavica.osu.eu, www.pdf.osu.cz, news.osu.cz, www.lf.osu.cz, vvv.osu.cz, orlova2023.osu.cz, www.offices.osu.eu, www.lf.osu.eu, studiaslavica.osu.cz, cpv.osu.cz, zsf.osu.eu, dezinfo-opjak.osu.eu, odbory.osu.cz, osu.cz, www.zsf.osu.eu, rektorat1.osu.cz, ostravajournal.osu.eu, zsf.osu.cz, menza1.osu.cz, pdf1.osu.cz, www.prodejna.osu.eu, mojeip.osu.cz, studiagermanistica.osu.cz, www.library.osu.eu, ostravajournal.osu.cz, pyramida1.osu.cz, www.rektorat.osu.cz, www.zsf.osu.cz

Security headers

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

Compression: none · 2 cookie(s) observed

Content & assets

Headings

H1 1 · H2 17 · H3 0

Links

122 internal · 75 external · 20 broken

Images

174 total · 0 missing alt

Scripts / Styles

15 scripts · 14 stylesheets

JS / CSS size

0 B · 0 B

Page size

122 KB

Robots.txt & Sitemap

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

SEO issues

No structured data (JSON-LD) found
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://osu.cz
Final URL: https://www.osu.cz/
HTTP status: 200
HTTP version: HTTP/2
Response time: 1.81 s
HTML size: 122 KB
Redirect chain: https://osu.cz → https://www.osu.cz/

See something wrong on this report? Request a correction

Frequently asked questions

What technology does osu.cz use?: osu.cz is built with PHP, jQuery, Meta Pixel, Apache.
Is osu.cz secure (HTTPS)?: Yes. osu.cz uses TLS 1.3 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Sep 8, 2026.
Who hosts osu.cz?: Hosting provider information for osu.cz is not available yet.
What is osu.cz's SEO score?: osu.cz scored 80/100 for SEO in the latest analysis (great).
What is osu.cz's overall website score?: osu.cz has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.