mangaupdates.com

Readiness by lane

Green: mangaupdates.com. Thin bar: Literary & Knowledge peer median.

Priority fixes for mangaupdates.com

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

1. Priority 1 · Accelerate

   HTTP/2 negotiated

   Observed: The TLS handshake selected HTTP/1.1 instead of HTTP/2.

   Why it matters: HTTP/2 sends many files over one connection, which speeds up pages with lots of images, styles and scripts.

   What to do: Enable HTTP/2 on your CDN or server. Most CDNs do this by default.

   89% of Literary & Knowledge peers do this. Limit: Certificate and protocol were observed from one vantage point; CDNs can present different certificates by region.

   Guide: CDN Guide for Website Owners

2. Priority 2 · 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.

   69% of Literary & Knowledge peers do this.

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

3. Priority 3 · Harden

   HSTS kept for at least a year

   Observed: Strict-Transport-Security was sent with a max-age of 185 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 Next.js: Add the header in the headers() option of next.config.js for all routes.

   28% of Literary & Knowledge peers do this.

   Guide: HTTPS and TLS Guide for Website Owners

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.

   On Next.js: Use the next/script component with an appropriate loading strategy.

   48% of Literary & Knowledge peers do this.

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

What mangaupdates.com already does well

Practices fewer than half of Literary & Knowledge peers use.

• Content Security Policy presentContent-Security-Policy present.18% of peers
• DMARC policy enforces quarantine or rejectDMARC policy p=reject.22% of peers
• Referrer-Policy setReferrer-Policy present.22% of peers

What we saw

Homepage checked

https://www.mangaupdates.com/

Homepage response

HTTP 200

TLS

TLSv1.3

Certificate

Let's Encrypt, 89-day validity, expiring 2026-12-19

Platform or framework

Next.js

DNS operators

DigitalOcean DNS

HSTS

max-age 185 days, includeSubDomains, preload

DMARC policy

p=reject

Homepage HTML

136 KB, gzip

Images on homepage

5 (svg 2)

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 Literary & Knowledge sites

• kayiprihtim.com63
• manga18fx.com63
• mangalib.me63
• manhwaden.com63
• nettruyen13s.com63

Literary & Knowledge readiness benchmark