safebooru.org

Readiness by lane

Green: safebooru.org. Thin bar: Stock Image & Video Libraries peer median.

Priority fixes for safebooru.org

Ordered by impact and by how common each practice is among peers.

1. Priority 1 · Accelerate

   Modern image formats in use

   Observed: The homepage had 8 images and none used WebP or AVIF.

   Why it matters: WebP and AVIF are typically much smaller than JPEG or PNG at similar quality, and images are often the heaviest part of a page.

   What to do: Serve WebP or AVIF with a JPEG or PNG fallback, either through an image CDN or by generating both formats at build time.

   On Cloudflare: Cloudflare Polish can convert images to WebP.

   46% of Stock Image & Video Libraries peers do this. Limit: Based on the homepage HTML delivered to an automated client; scripts that run later were not executed.

   Guide: AVIF, WebP, JPEG, and PNG: Choose the Right Image Format

2. Priority 2 · Harden

   HSTS kept for at least a year

   Observed: Strict-Transport-Security was sent with a max-age of 0 days, below the one-year benchmark.

   What to do: Send Strict-Transport-Security on HTTPS responses. Start with a short max-age (for example 300 seconds), confirm every subdomain works over HTTPS, then raise it in steps to 31536000. Add includeSubDomains only when all subdomains are HTTPS. HSTS preload is optional and hard to undo; hstspreload.org itself does not recommend it by default.

   On Cloudflare: Enable HSTS under SSL/TLS > Edge Certificates > HTTP Strict Transport Security and raise max-age gradually.

   30% of Stock Image & Video Libraries peers do this.

   Guide: HTTPS and TLS Guide for Website Owners

3. Priority 3 · Enable

   XML sitemap discoverable

   Observed: No sitemap was listed in robots.txt or found at /sitemap.xml.

   What to do: Generate an XML sitemap of canonical URLs, reference it in robots.txt and submit it in Google Search Console.

   62% of Stock Image & Video Libraries peers do this.

   Guide: XML Sitemap Guide: Include Only URLs You Stand Behind

4. Priority 4 · Accelerate

   No render-blocking scripts in <head>

   Observed: The homepage <head> loaded 1 external script without async or defer.

   What to do: Add defer to scripts that need the DOM, async to independent ones such as analytics, or move them to the end of the body.

   60% of Stock Image & Video Libraries peers do this.

   Guide: Control Third-Party Scripts Before They Control Your Page

What safebooru.org already does well

Practices fewer than half of Stock Image & Video Libraries peers use.

• DNSSEC signedDNSSEC delegation (DS record) present.4.1% of peers
• HTTP/3 advertisedHTTP/3 advertised.29% of peers
• Reachable over IPv6IPv6 address published.32% of peers

What we saw

Homepage checked

https://safebooru.org/

Homepage response

HTTP 200

TLS

TLSv1.3, HTTP/2

Certificate

Google Trust Services, 90-day validity, expiring 2026-12-07

CDN or edge

Cloudflare

DNS operators

Cloudflare

HSTS

max-age 0 days

Homepage HTML

5 KB, br

Images on homepage

8 (gif 7, png 1)

Limits: homepage only, one location, one moment. Header checks reflect the homepage response; other pages may differ.

Stack and providers

Seen in the homepage response, certificate and DNS. Provider pages compare how their customers configure the same checks.

All 31 checks

Select a gap for the method and fix. How each check works

Compare with other Stock Image & Video Libraries sites

• focoradical.com.br55
• free3d.com54
• ghauseditz.com57
• soundeffect-lab.info56
• wallhaven.cc55

Stock Image & Video Libraries readiness benchmark