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SGSiteGraph

gbv.de

Willkommen — Verbundzentrale des GBV

Last scanned Jul 26, 2026, 5:17 AM · 3 views

78

Overall score

Fair

Summary

This website uses Nginx hosted on DFN - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE. SEO is good (75/100) and accessibility is excellent (100/100). Security scores fair (60/100) and performance good (80/100). Top issue: Missing meta description.

Germany
Hosted on DFN - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE

Top issues to fix

5 issues found · 2 high priority

  • Missing meta description

    SEO

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

  • Slow estimated load (4.1s)

    Performance

    Use a CDN, enable caching/compression, and cut render-blocking assets — every extra second costs conversions.

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

  • sitemap.xml not found

    SEO

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

  • 5 broken links on the page

    SEO

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

75

SEO

3 issue(s) found

80

Performance

4.14 s

60

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.

Meta tags

Title
Willkommen — Verbundzentrale des GBV
Description
Canonical
https://www.gbv.de
Language
de
Charset
utf-8
Viewport
width=device-width, initial-scale=1.0
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Willkommen
og:description
—
og:type
website
og:url
https://www.gbv.de

Twitter Card

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

Technologies

Detected frameworks, languages, and tools.

Nginx

Hosting & CDN

CDN provider
—
IP address
193.174.240.199
ASN
AS680 (DFN - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE)

DNS records

TypeValue
A
  • 193.174.240.199
AAAA—
MX—
TXT—
NS—
CAA—
CNAME
  • x4100-199.gbv.de
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.2
Issuer
Hellenic Academic and Research Institutions CA
Subject
www.gbv.de
Valid from
Dec 3, 2025
Valid to
Dec 3, 2026
Days until expiry
130
SAN domains
www.gbv.de

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 0 · H3 0

Links

35 internal · 4 external · 5 broken

Images

4 total · 0 missing alt

Scripts / Styles

6 scripts · 7 stylesheets

JS / CSS size

289 KB · 246 KB

Page size

24.8 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
43
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Missing meta description
  • No structured data (JSON-LD) found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://gbv.de
Final URL
https://www.gbv.de/
HTTP status
200
HTTP version
HTTP/1.1
Response time
4.14 s
HTML size
24.8 KB
Redirect chain
https://gbv.de → https://www.gbv.de/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does gbv.de use?
gbv.de is built with Nginx.
Is gbv.de secure (HTTPS)?
Yes. gbv.de uses TLS 1.2 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Dec 3, 2026.
Who hosts gbv.de?
gbv.de is hosted on DFN - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE.
What is gbv.de's SEO score?
gbv.de scored 75/100 for SEO in the latest analysis (fair).
What is gbv.de's overall website score?
gbv.de has an overall SiteGraph score of 78/100, combining SEO, performance, security, and accessibility.