Website readiness profile · Snapshot 23 October 2026
biedronka.pl
biedronka.pl's public homepage, certificate and DNS checked against 31 practices and compared with 5,718 E-Commerce & Marketplaces sites.
- Readiness index
- 59/100
- Ahead of
- 17%
- Practices observed
- 15/30
- Popularity band
- Top 50K
E-Commerce & Marketplaces median 71
of measured E-Commerce & Marketplaces sites
1 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: biedronka.pl. Thin bar: E-Commerce & Marketplaces peer median.
Enable
64/100
Peers 86
Harden
66/100
Peers 60
Accelerate
41/100
Peers 69
Recover
0/100
Peers 11
Priority fixes for biedronka.pl
Ordered by impact and by how common each practice is among peers.
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.
94% of E-Commerce & Marketplaces peers do this. Limit: Certificate and protocol were observed from one vantage point; CDNs can present different certificates by region.
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.
87% of E-Commerce & Marketplaces peers do this.
Guide: XML Sitemap Guide: Include Only URLs You Stand Behind
Priority 3 · 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.
85% of E-Commerce & Marketplaces peers do this.
Priority 4 · Harden
DMARC policy enforces quarantine or reject
Observed: The DMARC policy for biedronka.pl was p=none, which asks receivers to take no action on failing mail.
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.
39% of E-Commerce & Marketplaces peers do this.
What biedronka.pl already does well
Practices fewer than half of E-Commerce & Marketplaces peers use.
- HSTS kept for at least a yearHSTS with a 365-day max-age covering subdomains.32% of peers
- Modern image formats in useWebP or AVIF images detected.47% of peers
- Content Security Policy presentContent-Security-Policy present.48% of peers
What we saw
- Homepage checked
- https://www.biedronka.pl/
- Homepage response
- HTTP 200, after 1 redirect
- TLS
- TLSv1.3, http/1.1
- Certificate
- Asseco Data Systems S.A., 364-day validity, expiring 2027-01-19
- DNS operators
- 1 self-run or other nameserver domain
- HSTS
- max-age 365 days, includeSubDomains
- DMARC policy
- p=none
- Homepage HTML
- 136 KB, gzip
- Images on homepage
- 87 (jpg 73, png 68, webp 5, svg 2, gif 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
Not observed 15
- 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
- Referrer-Policy set
- HTTP/2 negotiated
- HTTP/3 advertised
- Offscreen images lazy-loaded
- No render-blocking scripts in <head>
- XML sitemap discoverable
- Reachable over IPv6
- Canonical URL declared
- Structured data present
- Nameservers spread across providers
Observed 15
- 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
- Content Security Policy present
- HTML compressed
- Modern image formats in use
- robots.txt published
- Meta description written
- Mobile viewport configured
- Social preview image set
- Page language declared
- At most one redirect to the homepage
Not measured 1
- Static files cached for 30 days or more
Own biedronka.pl?
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Live status for this site: Status Is Down: biedronka.pl. This profile covers configuration only.