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SGSiteGraph

bookstackapp.com

BookStack

Last scanned Aug 24, 2026, 1:22 PM

96

Overall score

Excellent

Summary

BookStack is a simple, open-source, self-hosted, easy-to-use platform for organising and storing information. This website uses Nginx hosted on HETZNER-AS - Hetzner Online GmbH, DE. SEO is good (85/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (100/100). Top issue: No structured data (JSON-LD) found.

BookStack is a simple, open-source, self-hosted, easy-to-use platform for organising and storing information.

Germany
Hosted on HETZNER-AS - Hetzner Online GmbH, DE

Top issues to fix

3 issues found

  • 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.

  • 1 broken link on the page

    SEO

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

85

SEO

2 issue(s) found

100

Performance

244 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.

BookStack is a simple, open-source, self-hosted, easy-to-use platform for organising and storing information.

Contact

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

Meta tags

Title
BookStack
Description
BookStack is a simple, open-source, self-hosted, easy-to-use platform for organising and storing information.
Canonical
https://www.bookstackapp.com/
Language
en-gb
Charset
utf-8
Viewport
width=device-width, initial-scale=1.0
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
BookStack
og:description
og:type
website
og:url
https://www.bookstackapp.com/

Twitter Card

twitter:card
summary
twitter:title
BookStack
twitter:description
BookStack is a simple, open-source, self-hosted, easy-to-use platform for organising and storing information.

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

CDN provider
IP address
88.99.102.202
ASN
AS24940 (HETZNER-AS - Hetzner Online GmbH, DE)

DNS records

TypeValue
A
  • 88.99.102.202
AAAA
MX
TXT
NS
CAA
CNAME
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
*.bookstackapp.com
Valid from
Aug 24, 2026
Valid to
Nov 22, 2026
Days until expiry
89
SAN domains
*.bookstackapp.com

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 5 · H3 0

Links

31 internal · 29 external · 1 broken

Images

25 total · 0 missing alt

Scripts / Styles

3 scripts · 1 stylesheets

JS / CSS size

56.0 KB · 52.7 KB

Page size

50.9 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Found
URLs in sitemap
237

SEO issues

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

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://bookstackapp.com
Final URL
https://www.bookstackapp.com/
HTTP status
200
HTTP version
HTTP/2
Response time
243 ms
HTML size
50.9 KB
Redirect chain
https://bookstackapp.com → https://www.bookstackapp.com/

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Frequently asked questions

What technology does bookstackapp.com use?
bookstackapp.com is built with Nginx.
Is bookstackapp.com secure (HTTPS)?
Yes. bookstackapp.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Nov 22, 2026.
Who hosts bookstackapp.com?
bookstackapp.com is hosted on HETZNER-AS - Hetzner Online GmbH, DE.
What is bookstackapp.com's SEO score?
bookstackapp.com scored 85/100 for SEO in the latest analysis (great).
What is bookstackapp.com's overall website score?
bookstackapp.com has an overall SiteGraph score of 96/100, combining SEO, performance, security, and accessibility.