Website readiness profile · Snapshot 23 October 2026
blocket.se
blocket.se's public homepage, certificate and DNS checked against 31 practices and compared with 5,718 E-Commerce & Marketplaces sites.
- Readiness index
- 82/100
- Ahead of
- 90%
- Practices observed
- 24/31
- Popularity band
- Top 5K
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: blocket.se. Thin bar: E-Commerce & Marketplaces peer median.
Enable
87/100
Peers 86
Harden
78/100
Peers 60
Accelerate
85/100
Peers 69
Recover
0/100
Peers 11
Priority fixes for blocket.se
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 1200 seconds, 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.
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: Strict-Transport-Security was sent with a max-age of 183 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.
32% of E-Commerce & Marketplaces peers do this.
Priority 3 · Harden
Content Security Policy present
Observed: The homepage response did not include a Content-Security-Policy header.
What to do: Start with Content-Security-Policy-Report-Only to see what would break, tighten the policy over a few weeks, then enforce it.
48% of E-Commerce & Marketplaces peers do this.
Guide: Payment Security and PCI DSS: What Website Owners Need to Know
Priority 4 · Enable
Social preview image set
Observed: The homepage had no og:image, so shared links may show without a preview image.
What to do: Add Open Graph tags, including og:image with a 1200 x 630 image.
60% of E-Commerce & Marketplaces peers do this.
What blocket.se already does well
Practices fewer than half of E-Commerce & Marketplaces peers use.
- security.txt publishedsecurity.txt with a contact found.7.6% of peers
- CAA records limit who can issue certificatesCAA limits issuance to amazon.com, certainly.com, digicert.com and others.16% of peers
- Referrer-Policy setReferrer-Policy present.20% of peers
What we saw
- Homepage checked
- https://www.blocket.se/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Google Trust Services, 90-day validity, expiring 2027-01-18
- CDN or edge
- Google edge
- DNS operators
- Amazon Route 53
- HSTS
- max-age 183 days
- DMARC policy
- p=reject
- Homepage HTML
- 354 KB, br
- Images on homepage
- 19 (svg 5, jpg 1, png 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 7
Observed 24
- HTTP requests move to HTTPS
- TLS 1.3 negotiated
- Certificate has more than 14 days left
- Certificate lifetime of 100 days or less
- CAA records limit who can issue certificates
- security.txt published
- DMARC policy enforces quarantine or reject
- X-Content-Type-Options: nosniff
- Framing restricted
- Referrer-Policy set
- HTTP/2 negotiated
- HTTP/3 advertised
- HTML compressed
- Modern image formats in use
- Offscreen images lazy-loaded
- No render-blocking scripts in <head>
- robots.txt published
- XML sitemap discoverable
- Canonical URL declared
- Meta description written
- Mobile viewport configured
- Structured data present
- Page language declared
- At most one redirect to the homepage
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Live status for this site: Status Is Down: blocket.se. This profile covers configuration only.