Website readiness profile · Snapshot 23 October 2026
mangablackcat.com
mangablackcat.com's public homepage, certificate and DNS checked against 31 practices and compared with 536 Entertainment & Video Streaming sites.
- Readiness index
- 75/100
- Ahead of
- 86%
- Practices observed
- 23/31
- Popularity band
- Top 10K
Entertainment & Video Streaming median 62
of measured Entertainment & Video Streaming sites
0 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: mangablackcat.com. Thin bar: Entertainment & Video Streaming peer median.
Enable
100/100
Peers 80
Harden
57/100
Peers 52
Accelerate
85/100
Peers 60
Recover
0/100
Peers 12
Priority fixes for mangablackcat.com
Ordered by impact and by how common each practice is among peers.
Priority 1 · Accelerate
Static files cached for 30 days or more
Observed: A same-site stylesheet or script was cacheable for 1 days, short of the 30-day benchmark.
Why it matters: Returning visitors and later page views reuse cached files instead of downloading them again.
What to do: Give versioned (fingerprinted) CSS, JavaScript, fonts and images Cache-Control: public, max-age=31536000, immutable, and change the file name whenever the content changes.
On Cloudflare: Use Cache Rules to set edge and browser TTLs for static file paths.
46% of Entertainment & Video Streaming peers do this. Limit: Read from the homepage response only; other pages or regions may send different headers.
Priority 2 · Harden
HSTS kept for at least a year
Observed: The homepage response did not include a Strict-Transport-Security header.
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.
31% of Entertainment & Video Streaming peers do this.
Priority 3 · Harden
DMARC policy enforces quarantine or reject
Observed: No DMARC record was found at _dmarc.mangablackcat.com.
What to do: Publish DMARC with p=none and a reporting address first, fix any legitimate senders that fail SPF or DKIM alignment, then move to quarantine and finally reject.
31% of Entertainment & Video Streaming peers do this.
Priority 4 · Harden
Content Security Policy present
Observed: The homepage response did not include a Content-Security-Policy header.
What to do: Start with Content-Security-Policy-Report-Only to see what would break, tighten the policy over a few weeks, then enforce it.
18% of Entertainment & Video Streaming peers do this.
Guide: Payment Security and PCI DSS: What Website Owners Need to Know
What mangablackcat.com already does well
Practices fewer than half of Entertainment & Video Streaming peers use.
- Referrer-Policy setReferrer-Policy present.21% of peers
- Modern image formats in useWebP or AVIF images detected.32% of peers
- HTTP/3 advertisedHTTP/3 advertised.34% of peers
What we saw
- Homepage checked
- https://mangablackcat.com/
- 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
- Homepage HTML
- 317 KB, br
- Images on homepage
- 106 (webp 106)
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
Not observed 8
Observed 23
- HTTP requests move to HTTPS
- TLS 1.3 negotiated
- Certificate has more than 14 days left
- Certificate lifetime of 100 days or less
- X-Content-Type-Options: nosniff
- Framing restricted
- Referrer-Policy set
- HTTP/2 negotiated
- HTTP/3 advertised
- HTML compressed
- Modern image formats in use
- Offscreen images lazy-loaded
- No render-blocking scripts in <head>
- robots.txt published
- XML sitemap discoverable
- Reachable over IPv6
- Canonical URL declared
- Meta description written
- Mobile viewport configured
- Structured data present
- Social preview image set
- Page language declared
- At most one redirect to the homepage
Own mangablackcat.com?
Re-run the checks after a change, or verify the site in a free workspace to save reports with history, compare against similar sites and competitors, and track a private action plan. What owners get.
Live status for this site: Status Is Down: mangablackcat.com. This profile covers configuration only.