Website readiness profile · Snapshot 23 October 2026
sub4unlock.pro
sub4unlock.pro's public homepage, certificate and DNS checked against 31 practices and compared with 87 SEO & Email Marketing sites.
- Readiness index
- 65/100
- Ahead of
- 55%
- Practices observed
- 16/26
- Popularity band
- Top 50K
SEO & Email Marketing median 62
of measured SEO & Email Marketing sites
5 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: sub4unlock.pro. Thin bar: SEO & Email Marketing peer median.
Enable
56/100
Peers 77
Harden
53/100
Peers 55
Accelerate
100/100
Peers 66
Recover
0/100
Peers 3
Priority fixes for sub4unlock.pro
Ordered by impact and by how common each practice is among peers.
Priority 1 · Enable
robots.txt published
Observed: No robots.txt file was returned at the site root.
Why it matters: robots.txt is where crawlers look first for crawl rules and sitemap locations. Without it, they assume everything is open.
What to do: Publish /robots.txt with any crawl rules you need and a Sitemap: line pointing to your XML sitemap.
79% of SEO & Email Marketing peers do this. Limit: Only the standard location was requested, once, at the time of the check.
Guide: Robots.txt Guide: Control Crawling Without Hiding Mistakes
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.
36% of SEO & Email Marketing peers do this.
Priority 3 · Harden
DMARC policy enforces quarantine or reject
Observed: No DMARC record was found at _dmarc.sub4unlock.pro.
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.
37% of SEO & Email Marketing peers do this.
Priority 4 · Enable
Canonical URL declared
Observed: The homepage did not declare a canonical URL.
What to do: Add a self-referencing canonical link to every indexable page, using the final https:// URL.
65% of SEO & Email Marketing peers do this.
What sub4unlock.pro already does well
Practices fewer than half of SEO & Email Marketing peers use.
- Referrer-Policy setReferrer-Policy present.20% of peers
- HTTP/3 advertisedHTTP/3 advertised.41% of peers
- X-Content-Type-Options: nosniffnosniff header present.41% of peers
What we saw
- Homepage checked
- https://sub4unlock.pro/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Google Trust Services, 90-day validity, expiring 2026-11-29
- CDN or edge
- Cloudflare
- DNS operators
- Cloudflare
- Homepage HTML
- 27 KB, br
- Images on homepage
- 0
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 10
Observed 16
- 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
- Static files cached for 30 days or more
- No render-blocking scripts in <head>
- Reachable over IPv6
- Meta description written
- Mobile viewport configured
- Page language declared
- At most one redirect to the homepage
Not measured 5
- HTTP requests move to HTTPS
- security.txt published
- Modern image formats in use
- Offscreen images lazy-loaded
- XML sitemap discoverable
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Live status for this site: Status Is Down: sub4unlock.pro. This profile covers configuration only.