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gelbooru.com

Gelbooru | Anime Art & Hentai Gallery - Free to Explore

Last scanned Jul 21, 2026, 12:33 PM · 1 view

84

Overall score

Great

Top issues to fix

9 issues found · 2 high priority

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • 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.

  • 1 cookie 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.

  • 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.

+3 more issues — details in the sections below.

Summary

Browse millions of anime, manga, videos, and video game themed images on Gelbooru. This website uses Nginx hosted on BLUETYPE - BlueType LLC, US. SEO is good (75/100) and accessibility is excellent (90/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Missing canonical link.

75

SEO

4 issue(s) found

100

Performance

245 ms

75

Security

HTTPS & header checks

90

Accessibility

1 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
Gelbooru | Anime Art & Hentai Gallery - Free to Explore
Description
Browse millions of anime, manga, videos, and video game themed images on Gelbooru. Discover art with detailed tags. Contains explicit hentai content.
Canonical
Language
Charset
UTF-8
Viewport
width=device-width, initial-scale=1.0
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
—
og:description
—
og:type
—
og:url
—

Twitter Card

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

Technologies

Detected frameworks, languages, and tools.

PHPjQueryNginx

Hosting & CDN

CDN provider
—
IP address
131.143.124.72
ASN
AS401044 (BLUETYPE - BlueType LLC, US)

DNS records

TypeValue
A
  • 131.143.124.72
AAAA—
MX
  • aspmx.l.google.com
  • aspmx5.googlemail.com
  • aspmx4.googlemail.com
  • aspmx2.googlemail.com
  • aspmx3.googlemail.com
  • alt1.aspmx.l.google.com
  • alt2.aspmx.l.google.com
TXT
  • v=spf1 ip4:108.181.143.72 ip6:2602:f901::72 include:_spf.google.com ~all
NS
  • ns1.dreamhost.com
  • ns2.dreamhost.com
  • ns3.dreamhost.com
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.2
Issuer
Let's Encrypt
Subject
gelbooru.com
Valid from
Jul 8, 2026
Valid to
Oct 6, 2026
Days until expiry
76
SAN domains
gelbooru.com, ja.gelbooru.com, www.gelbooru.com

Security headers

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

Compression: identity · 1 cookie(s) observed

Content & assets

Headings

H1 1 · H2 0 · H3 0

Links

9 internal · 1 external · 0 broken

Images

8 total · 0 missing alt

Scripts / Styles

5 scripts · 3 stylesheets

JS / CSS size

384 KB · 102 KB

Page size

3.3 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
2
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Missing canonical link
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • sitemap.xml not found

Accessibility issues

  • Missing <html lang> attribute

Scan details

Requested URL
https://gelbooru.com
Final URL
https://gelbooru.com
HTTP status
200
HTTP version
HTTP/1.1
Response time
245 ms
HTML size
3.3 KB
Redirect chain
https://gelbooru.com

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Frequently asked questions

What technology does gelbooru.com use?
gelbooru.com is built with PHP, jQuery, Nginx.
Is gelbooru.com secure (HTTPS)?
Yes. gelbooru.com uses TLS 1.2 with a certificate issued by Let's Encrypt, valid until Oct 6, 2026.
Who hosts gelbooru.com?
gelbooru.com is hosted on BLUETYPE - BlueType LLC, US.
What is gelbooru.com's SEO score?
gelbooru.com scored 75/100 for SEO in the latest analysis (fair).
What is gelbooru.com's overall website score?
gelbooru.com has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.