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?

Hosting provider information for gelbooru.com is not available yet.

What is gelbooru.com's SEO score?

gelbooru.com scored 70/100 for SEO in the latest analysis (fair).

What is gelbooru.com's overall website score?

gelbooru.com has an overall SiteGraph score of 83/100, combining SEO, performance, security, and accessibility.

Has gelbooru.com's score changed over time?

gelbooru.com's overall score has declined by 1 point (from 84 to 83) since Jul 21, 2026.

gelbooru.com

Gelbooru | Anime Art & Hentai Gallery - Free to Explore

Last scanned Jul 29, 2026, 6:00 PM · 8 views

Overall score

Great

Summary

Browse millions of anime, manga, videos, and video game themed images on Gelbooru. This website uses Nginx. SEO is fair (70/100) and accessibility is excellent (90/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Missing canonical link.

Browse millions of anime, manga, videos, and video game themed images on Gelbooru. Discover art with detailed tags. Contains explicit hentai content.

Top issues to fix

11 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.

+5 more issues — details in the sections below.

SEO

5 issue(s) found

100

Performance

242 ms

Security

HTTPS & header checks

Accessibility

1 issue(s) found

Score history

-1 overall since Jul 21, 2026

Overall: 83
SEO: 70
Security: 75
Performance: 100
Accessibility: 90

Organization

Company details published in this site's own structured data.

Browse millions of anime, manga, videos, and video game themed images on Gelbooru. Discover art with detailed tags. Contains explicit hentai content.

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

Technologies

Detected frameworks, languages, and tools.

PHP jQuery Nginx

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 1.2
Issuer: Let's Encrypt
Subject: gelbooru.com
Valid from: Jul 8, 2026
Valid to: Oct 6, 2026
Days until expiry: 68
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 · 10 broken

Images

8 total · 0 missing alt

Scripts / Styles

5 scripts · 3 stylesheets

JS / CSS size

0 B · 0 B

Page size

3.3 KB

Robots.txt & Sitemap

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

SEO issues

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

Scan details

Requested URL: https://gelbooru.com
Final URL: https://gelbooru.com
HTTP status: 200
HTTP version: HTTP/1.1
Response time: 242 ms
HTML size: 3.3 KB
Redirect chain: https://gelbooru.com

See something wrong on this report? Request a correction

Same technology stack

quackquack.in

QuackQuack Dating App | 100% Free Dating Site to Meet Singles

nginxgoogle-analyticsmeta-pixel

AWS

voipgrid.nl

VoIPGRID: Wholesale VoIP-platform voor telefonie resellers

wordpressnginxgoogle-analytics

COMBELL-AS - Combell NV, BE

nasertic.es

Inicio | Nasertic - Navarra de Servicios y Tecnologías

phpnginxdrupal

Telefonica_de_EspaNa - TELEFONICA DE ESPANA S.A.U., ES

netio.cz

Spolehlivé řešení pro vaši IT infrastrukturu | NETIO

nginxgoogle-analyticsmeta-pixel

MASTER-AS - MasterDC s.r.o., CZ

hallensteins.co.nz

Men's Clothing | Shop Hallensteins NZ

nginxphpjquery

· Fastly

i24.host

i24® MKB Hostingpartner

wordpressnginxphp

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?: Hosting provider information for gelbooru.com is not available yet.
What is gelbooru.com's SEO score?: gelbooru.com scored 70/100 for SEO in the latest analysis (fair).
What is gelbooru.com's overall website score?: gelbooru.com has an overall SiteGraph score of 83/100, combining SEO, performance, security, and accessibility.
Has gelbooru.com's score changed over time?: gelbooru.com's overall score has declined by 1 point (from 84 to 83) since Jul 21, 2026.