Website readiness profile · Snapshot 23 October 2026
sonderpreis-baumarkt.de
sonderpreis-baumarkt.de's public homepage, certificate and DNS checked against 31 practices and compared with 5,718 E-Commerce & Marketplaces sites.
- Readiness index
- 72/100
- Ahead of
- 54%
- Practices observed
- 20/31
- Popularity band
- Top 50K
E-Commerce & Marketplaces median 71
of measured E-Commerce & Marketplaces sites
0 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: sonderpreis-baumarkt.de. Thin bar: E-Commerce & Marketplaces peer median.
Enable
69/100
Peers 86
Harden
74/100
Peers 60
Accelerate
75/100
Peers 69
Recover
0/100
Peers 11
Priority fixes for sonderpreis-baumarkt.de
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 30 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.
60% of E-Commerce & Marketplaces 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.
32% of E-Commerce & Marketplaces peers do this.
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 · Accelerate
HTTP/3 advertised
Observed: The homepage did not advertise HTTP/3 through an Alt-Svc header.
What to do: Turn on HTTP/3 at your CDN. Browsers fall back to HTTP/2 automatically, so the risk is low.
On Cloudflare: Enable HTTP/3 (with QUIC) under Speed > Optimization > Protocol Optimization.
47% of E-Commerce & Marketplaces peers do this.
What sonderpreis-baumarkt.de already does well
Practices fewer than half of E-Commerce & Marketplaces peers use.
- DNSSEC signedDNSSEC delegation (DS record) present.7.7% of peers
- DMARC policy enforces quarantine or rejectDMARC policy p=reject.39% of peers
- No render-blocking scripts in <head>Head scripts load without blocking.44% of peers
What we saw
- Homepage checked
- https://www.sonderpreis-baumarkt.de/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Let's Encrypt, 89-day validity, expiring 2026-12-24
- CDN or edge
- Cloudflare
- DNS operators
- 1 self-run or other nameserver domain
- DMARC policy
- p=reject
- Homepage HTML
- 840 KB, br
- Images on homepage
- 48 (jpg 33, png 14, webp 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 11
Observed 20
- HTTP requests move to HTTPS
- TLS 1.3 negotiated
- Certificate has more than 14 days left
- Certificate lifetime of 100 days or less
- DNSSEC signed
- DMARC policy enforces quarantine or reject
- X-Content-Type-Options: nosniff
- Framing restricted
- Content Security Policy present
- HTTP/2 negotiated
- HTML compressed
- Modern image formats in use
- Offscreen images lazy-loaded
- No render-blocking scripts in <head>
- robots.txt published
- XML sitemap discoverable
- Meta description written
- Mobile viewport configured
- Page language declared
- At most one redirect to the homepage
Own sonderpreis-baumarkt.de?
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Live status for this site: Status Is Down: sonderpreis-baumarkt.de. This profile covers configuration only.