What technology does schulserver.de use?

We did not detect any specific technologies for schulserver.de in the latest scan.

Is schulserver.de secure (HTTPS)?

Yes. schulserver.de uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 6, 2026.

Who hosts schulserver.de?

Hosting provider information for schulserver.de is not available yet.

What is schulserver.de's SEO score?

schulserver.de scored 45/100 for SEO in the latest analysis (poor).

What is schulserver.de's overall website score?

schulserver.de has an overall SiteGraph score of 76/100, combining SEO, performance, security, and accessibility.

Has schulserver.de's score changed over time?

schulserver.de's overall score has stayed steady at 76/100 since Jul 26, 2026.

schulserver.de

Redirecting to /iserv/auth/login?_target_path=/iserv/auth/auth?_iserv_app_url%3D%2Fiserv%2F%26client_id%3De91958dd-8e7f-4a18-b1c8-380934721824%26nonce%3D10c7189c-f8f4-4615-8a24-abac52631817%26redirect_uri%3Dhttps%253A%2F%2Fiserv.schulserver.de%2Fiserv%2Fapp%2Fauthentication%2Fredirect%26response_type%3Dcode%26scope%3Dopenid%2520uuid%2520iserv%253Asession-id%2520iserv%253Aweb-ui%2520iserv%253A2fa%253Aconfiguration%2520iserv%253Aaccess-groups%26state%3DeyJ0eXAiOiJKV1QiLCJhbGciOiJFUzI1NiIsImtpZCI6IjEifQ.eyJyZWRpcmVjdF91cmkiOiJodHRwczovL2lzZXJ2LnNjaHVsc2VydmVyLmRlL2lzZXJ2LyIsIm5vbmNlIjoiMTBjNzE4OWMtZjhmNC00NjE1LThhMjQtYWJhYzUyNjMxODE3IiwiYWRtaW4iOmZhbHNlLCJpc3MiOiJodHRwczovL2lzZXJ2LnNjaHVsc2VydmVyLmRlL2lzZXJ2LyIsImV4cCI6MTc5MzQ4MjA2MywibmJmIjoxNzg1NzA2MDAzLCJpYXQiOjE3ODU3MDYwNjMsInNpZCI6IiJ9.hLpfhqaBZV4T6ONJa03xnQtzAgUlzHi1L2z6Qk-NbGp_UwvPrspePG5JxE8JGzxT_eU3aA1oZKWRL3ylnZOWhQ

Last scanned Aug 2, 2026, 9:00 PM · 6 views

Overall score

Fair

Summary

SEO is poor (45/100) and accessibility is good (75/100). Security scores excellent (100/100) and performance excellent (90/100). Top issue: Title longer than 60 characters.

Top issues to fix

11 issues found · 3 high priority

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.
Missing viewport meta tag
Accessibility
Add <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.
Title longer than 60 characters
SEO
Shorten the title to under 60 characters so search results don't truncate it.
Missing canonical link
SEO
Add <link rel="canonical"> so search engines know which URL variant to index.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

+5 more issues — details in the sections below.

SEO

8 issue(s) found

Performance

1.00 s

100

Security

HTTPS & header checks

Accessibility

3 issue(s) found

Score history

0 overall since Jul 26, 2026

Overall: 76
SEO: 45
Security: 100
Performance: 90
Accessibility: 75

Meta tags

Title: Redirecting to /iserv/auth/login?_target_path=/iserv/auth/auth?_iserv_app_url%3D%2Fiserv%2F%26client_id%3De91958dd-8e7f-4a18-b1c8-380934721824%26nonce%3D10c7189c-f8f4-4615-8a24-abac52631817%26redirect_uri%3Dhttps%253A%2F%2Fiserv.schulserver.de%2Fiserv%2Fapp%2Fauthentication%2Fredirect%26response_type%3Dcode%26scope%3Dopenid%2520uuid%2520iserv%253Asession-id%2520iserv%253Aweb-ui%2520iserv%253A2fa%253Aconfiguration%2520iserv%253Aaccess-groups%26state%3DeyJ0eXAiOiJKV1QiLCJhbGciOiJFUzI1NiIsImtpZCI6IjEifQ.eyJyZWRpcmVjdF91cmkiOiJodHRwczovL2lzZXJ2LnNjaHVsc2VydmVyLmRlL2lzZXJ2LyIsIm5vbmNlIjoiMTBjNzE4OWMtZjhmNC00NjE1LThhMjQtYWJhYzUyNjMxODE3IiwiYWRtaW4iOmZhbHNlLCJpc3MiOiJodHRwczovL2lzZXJ2LnNjaHVsc2VydmVyLmRlL2lzZXJ2LyIsImV4cCI6MTc5MzQ4MjA2MywibmJmIjoxNzg1NzA2MDAzLCJpYXQiOjE3ODU3MDYwNjMsInNpZCI6IiJ9.hLpfhqaBZV4T6ONJa03xnQtzAgUlzHi1L2z6Qk-NbGp_UwvPrspePG5JxE8JGzxT_eU3aA1oZKWRL3ylnZOWhQ
Description
Canonical
Language
Charset: UTF-8
Viewport
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

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: Let's Encrypt
Subject: schulserver.de
Valid from: Jul 8, 2026
Valid to: Oct 6, 2026
Days until expiry: 64
SAN domains: *.ausleihe-api.iserv.schulserver.de, *.ausleihe.iserv.schulserver.de, *.autoconfig.iserv.schulserver.de, *.autodiscover.iserv.schulserver.de, *.brainyoo.iserv.schulserver.de, *.cal.iserv.schulserver.de, *.cloudfiles.iserv.schulserver.de, *.dav.iserv.schulserver.de, *.excalidraw.iserv.schulserver.de, *.idm.iserv.schulserver.de, *.imap.iserv.schulserver.de, *.iserv.iserv.schulserver.de, *.libreoffice.iserv.schulserver.de, *.mail-backend.iserv.schulserver.de, *.mail.iserv.schulserver.de, *.pop.iserv.schulserver.de, *.pop3.iserv.schulserver.de, *.schulserver.de, *.smtp.iserv.schulserver.de, *.webdav.iserv.schulserver.de, *.wpad.iserv.schulserver.de, *.www.iserv.schulserver.de, ausleihe-api.iserv.schulserver.de, ausleihe.iserv.schulserver.de, autoconfig.iserv.schulserver.de, autodiscover.iserv.schulserver.de, brainyoo.iserv.schulserver.de, cal.iserv.schulserver.de, cloudfiles.iserv.schulserver.de, dav.iserv.schulserver.de, excalidraw.iserv.schulserver.de, idm.iserv.schulserver.de, imap.iserv.schulserver.de, iserv.iserv.schulserver.de, libreoffice.iserv.schulserver.de, mail-backend.iserv.schulserver.de, mail.iserv.schulserver.de, pop.iserv.schulserver.de, pop3.iserv.schulserver.de, schulserver.de, smtp.iserv.schulserver.de, webdav.iserv.schulserver.de, wpad.iserv.schulserver.de, www.iserv.schulserver.de

Security headers

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

Compression: none · 1 cookie(s) observed

Content & assets

Headings

H1 0 · H2 0 · H3 0

Links

1 internal · 0 external · 1 broken

Images

0 total · 0 missing alt

Scripts / Styles

0 scripts · 0 stylesheets

JS / CSS size

0 B · 0 B

Page size

3.6 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
Missing meta description
Missing canonical link
No H1 heading found
No structured data (JSON-LD) found
Missing OpenGraph tags
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://schulserver.de
Final URL: https://iserv.schulserver.de/iserv/auth/auth?_iserv_app_url=%2Fiserv%2F&state=eyJ0eXAiOiJKV1QiLCJhbGciOiJFUzI1NiIsImtpZCI6IjEifQ.eyJyZWRpcmVjdF91cmkiOiJodHRwczovL2lzZXJ2LnNjaHVsc2VydmVyLmRlL2lzZXJ2LyIsIm5vbmNlIjoiMTBjNzE4OWMtZjhmNC00NjE1LThhMjQtYWJhYzUyNjMxODE3IiwiYWRtaW4iOmZhbHNlLCJpc3MiOiJodHRwczovL2lzZXJ2LnNjaHVsc2VydmVyLmRlL2lzZXJ2LyIsImV4cCI6MTc5MzQ4MjA2MywibmJmIjoxNzg1NzA2MDAzLCJpYXQiOjE3ODU3MDYwNjMsInNpZCI6IiJ9.hLpfhqaBZV4T6ONJa03xnQtzAgUlzHi1L2z6Qk-NbGp_UwvPrspePG5JxE8JGzxT_eU3aA1oZKWRL3ylnZOWhQ&nonce=10c7189c-f8f4-4615-8a24-abac52631817&client_id=e91958dd-8e7f-4a18-b1c8-380934721824&redirect_uri=https%3A%2F%2Fiserv.schulserver.de%2Fiserv%2Fapp%2Fauthentication%2Fredirect&scope=openid%20uuid%20iserv%3Asession-id%20iserv%3Aweb-ui%20iserv%3A2fa%3Aconfiguration%20iserv%3Aaccess-groups&response_type=code
HTTP status: 302
HTTP version: HTTP/2
Response time: 1.00 s
HTML size: 3.6 KB
Redirect chain: https://schulserver.de → https://schulserver.de/iserv → https://schulserver.de/iserv/ → https://iserv.schulserver.de/iserv/ → https://iserv.schulserver.de/iserv/auth/auth?_iserv_app_url=%2Fiserv%2F&state=eyJ0eXAiOiJKV1QiLCJhbGciOiJFUzI1NiIsImtpZCI6IjEifQ.eyJyZWRpcmVjdF91cmkiOiJodHRwczovL2lzZXJ2LnNjaHVsc2VydmVyLmRlL2lzZXJ2LyIsIm5vbmNlIjoiMTBjNzE4OWMtZjhmNC00NjE1LThhMjQtYWJhYzUyNjMxODE3IiwiYWRtaW4iOmZhbHNlLCJpc3MiOiJodHRwczovL2lzZXJ2LnNjaHVsc2VydmVyLmRlL2lzZXJ2LyIsImV4cCI6MTc5MzQ4MjA2MywibmJmIjoxNzg1NzA2MDAzLCJpYXQiOjE3ODU3MDYwNjMsInNpZCI6IiJ9.hLpfhqaBZV4T6ONJa03xnQtzAgUlzHi1L2z6Qk-NbGp_UwvPrspePG5JxE8JGzxT_eU3aA1oZKWRL3ylnZOWhQ&nonce=10c7189c-f8f4-4615-8a24-abac52631817&client_id=e91958dd-8e7f-4a18-b1c8-380934721824&redirect_uri=https%3A%2F%2Fiserv.schulserver.de%2Fiserv%2Fapp%2Fauthentication%2Fredirect&scope=openid%20uuid%20iserv%3Asession-id%20iserv%3Aweb-ui%20iserv%3A2fa%3Aconfiguration%20iserv%3Aaccess-groups&response_type=code → https://iserv.schulserver.de/iserv/auth/login?_target_path=/iserv/auth/auth?_iserv_app_url%3D%2Fiserv%2F%26client_id%3De91958dd-8e7f-4a18-b1c8-380934721824%26nonce%3D10c7189c-f8f4-4615-8a24-abac52631817%26redirect_uri%3Dhttps%253A%2F%2Fiserv.schulserver.de%2Fiserv%2Fapp%2Fauthentication%2Fredirect%26response_type%3Dcode%26scope%3Dopenid%2520uuid%2520iserv%253Asession-id%2520iserv%253Aweb-ui%2520iserv%253A2fa%253Aconfiguration%2520iserv%253Aaccess-groups%26state%3DeyJ0eXAiOiJKV1QiLCJhbGciOiJFUzI1NiIsImtpZCI6IjEifQ.eyJyZWRpcmVjdF91cmkiOiJodHRwczovL2lzZXJ2LnNjaHVsc2VydmVyLmRlL2lzZXJ2LyIsIm5vbmNlIjoiMTBjNzE4OWMtZjhmNC00NjE1LThhMjQtYWJhYzUyNjMxODE3IiwiYWRtaW4iOmZhbHNlLCJpc3MiOiJodHRwczovL2lzZXJ2LnNjaHVsc2VydmVyLmRlL2lzZXJ2LyIsImV4cCI6MTc5MzQ4MjA2MywibmJmIjoxNzg1NzA2MDAzLCJpYXQiOjE3ODU3MDYwNjMsInNpZCI6IiJ9.hLpfhqaBZV4T6ONJa03xnQtzAgUlzHi1L2z6Qk-NbGp_UwvPrspePG5JxE8JGzxT_eU3aA1oZKWRL3ylnZOWhQ

See something wrong on this report? Request a correction

Frequently asked questions

What technology does schulserver.de use?: We did not detect any specific technologies for schulserver.de in the latest scan.
Is schulserver.de secure (HTTPS)?: Yes. schulserver.de uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 6, 2026.
Who hosts schulserver.de?: Hosting provider information for schulserver.de is not available yet.
What is schulserver.de's SEO score?: schulserver.de scored 45/100 for SEO in the latest analysis (poor).
What is schulserver.de's overall website score?: schulserver.de has an overall SiteGraph score of 76/100, combining SEO, performance, security, and accessibility.
Has schulserver.de's score changed over time?: schulserver.de's overall score has stayed steady at 76/100 since Jul 26, 2026.