Website readiness profile · Snapshot 23 October 2026
polsatsport.pl
polsatsport.pl's public homepage, certificate and DNS checked against 31 practices and compared with 677 Sports Broadcast & Fantasy Games sites.
- Readiness index
- 62/100
- Ahead of
- 42%
- Practices observed
- 17/31
- Popularity band
- Top 10K
Sports Broadcast & Fantasy Games median 64
of measured Sports Broadcast & Fantasy Games sites
0 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: polsatsport.pl. Thin bar: Sports Broadcast & Fantasy Games peer median.
Enable
95/100
Peers 82
Harden
60/100
Peers 51
Accelerate
38/100
Peers 63
Recover
0/100
Peers 16
Priority fixes for polsatsport.pl
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 12 hours, 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.
55% of Sports Broadcast & Fantasy Games peers do this. Limit: Read from the homepage response only; other pages or regions may send different headers.
Priority 2 · Accelerate
Modern image formats in use
Observed: The homepage had 155 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.
35% of Sports Broadcast & Fantasy Games peers do this.
Guide: AVIF, WebP, JPEG, and PNG: Choose the Right Image Format
Priority 3 · Harden
DMARC policy enforces quarantine or reject
Observed: No DMARC record was found at _dmarc.polsatsport.pl.
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.
32% of Sports Broadcast & Fantasy Games peers do this.
Priority 4 · Accelerate
No render-blocking scripts in <head>
Observed: The homepage <head> loaded 2 external scripts 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.
43% of Sports Broadcast & Fantasy Games peers do this.
Guide: Control Third-Party Scripts Before They Control Your Page
What polsatsport.pl already does well
Practices fewer than half of Sports Broadcast & Fantasy Games peers use.
- HSTS kept for at least a yearHSTS with a 730-day max-age covering subdomains.27% of peers
- X-Content-Type-Options: nosniffnosniff header present.32% of peers
- Framing restrictedFraming controls present.34% of peers
What we saw
- Homepage checked
- https://www.polsatsport.pl/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- DigiCert, 198-day validity, expiring 2026-12-17
- DNS operators
- 1 self-run or other nameserver domain
- HSTS
- max-age 730 days, includeSubDomains, preload
- Homepage HTML
- 288 KB, gzip
- Images on homepage
- 155 (jpg 124, svg 21, png 20, gif 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
Not observed 14
- Certificate lifetime of 100 days or less
- CAA records limit who can issue certificates
- DNSSEC signed
- security.txt published
- DMARC policy enforces quarantine or reject
- Content Security Policy present
- Referrer-Policy set
- HTTP/3 advertised
- Static files cached for 30 days or more
- Modern image formats in use
- Offscreen images lazy-loaded
- No render-blocking scripts in <head>
- Reachable over IPv6
- Nameservers spread across providers
Observed 17
- HTTP requests move to HTTPS
- HSTS kept for at least a year
- TLS 1.3 negotiated
- Certificate has more than 14 days left
- X-Content-Type-Options: nosniff
- Framing restricted
- HTTP/2 negotiated
- HTML compressed
- robots.txt published
- XML sitemap discoverable
- 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
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Live status for this site: Status Is Down: polsatsport.pl. This profile covers configuration only.