Website readiness profile · Snapshot 23 October 2026
3cat.cat
3cat.cat's public homepage, certificate and DNS checked against 31 practices and compared with 536 Entertainment & Video Streaming sites.
- Readiness index
- 70/100
- Ahead of
- 75%
- Practices observed
- 21/31
- 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: 3cat.cat. Thin bar: Entertainment & Video Streaming peer median.
Enable
87/100
Peers 80
Harden
68/100
Peers 52
Accelerate
60/100
Peers 60
Recover
0/100
Peers 12
Priority fixes for 3cat.cat
Ordered by impact and by how common each practice is among peers.
Priority 1 · Enable
XML sitemap discoverable
Observed: No sitemap was listed in robots.txt or found at /sitemap.xml.
Why it matters: A sitemap helps search engines find new and updated pages, especially on large or frequently updated sites.
What to do: Generate an XML sitemap of canonical URLs, reference it in robots.txt and submit it in Google Search Console.
71% of Entertainment & Video Streaming peers do this. Limit: Only the standard location was requested, once, at the time of the check.
Guide: XML Sitemap Guide: Include Only URLs You Stand Behind
Priority 2 · Accelerate
Static files cached for 30 days or more
Observed: A same-site stylesheet or script was cacheable for 7 days, short of the 30-day benchmark.
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.
46% of Entertainment & Video Streaming peers do this.
Priority 3 · Harden
HSTS kept for at least a year
Observed: Strict-Transport-Security was sent with a max-age of 180 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.
31% of Entertainment & Video Streaming peers do this.
Priority 4 · Accelerate
Modern image formats in use
Observed: The homepage had 68 images and none used WebP or AVIF.
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 Next.js: The next/image component serves optimized formats automatically.
32% of Entertainment & Video Streaming peers do this.
Guide: AVIF, WebP, JPEG, and PNG: Choose the Right Image Format
What 3cat.cat already does well
Practices fewer than half of Entertainment & Video Streaming peers use.
- Content Security Policy presentContent-Security-Policy present.18% of peers
- Referrer-Policy setReferrer-Policy present.21% of peers
- DMARC policy enforces quarantine or rejectDMARC policy p=quarantine.31% of peers
What we saw
- Homepage checked
- https://www.3cat.cat/
- Homepage response
- HTTP 200, after 1 redirect
- TLS
- TLSv1.3, HTTP/2
- Certificate
- GoDaddy, 198-day validity, expiring 2027-02-03
- Platform or framework
- Next.js
- DNS operators
- Amazon Route 53
- HSTS
- max-age 180 days, includeSubDomains
- DMARC policy
- p=quarantine
- Homepage HTML
- 258 KB, gzip
- Images on homepage
- 68 (jpg 108, png 99, svg 45)
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 21
- HTTP requests move to HTTPS
- TLS 1.3 negotiated
- Certificate has more than 14 days left
- DMARC policy enforces quarantine or reject
- X-Content-Type-Options: nosniff
- Framing restricted
- Content Security Policy present
- Referrer-Policy set
- HTTP/2 negotiated
- HTML compressed
- Offscreen images lazy-loaded
- No render-blocking scripts in <head>
- robots.txt published
- 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 3cat.cat?
Re-run the checks after a change, keep a private action plan in a free workspace, or report a mistake.
Live status for this site: Status Is Down: 3cat.cat. This profile covers configuration only.