Website readiness profile · Snapshot 23 October 2026
lematin.ch
lematin.ch's public homepage, certificate and DNS checked against 31 practices and compared with 3,856 News & Media sites.
- Readiness index
- 88/100
- Ahead of
- 99%
- Practices observed
- 24/30
- Popularity band
- Top 50K
News & Media median 68
of measured News & Media sites
1 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: lematin.ch. Thin bar: News & Media peer median.
Enable
92/100
Peers 89
Harden
80/100
Peers 56
Accelerate
100/100
Peers 68
Recover
0/100
Peers 11
Priority fixes for lematin.ch
Ordered by impact and by how common each practice is among peers.
Priority 1 · Enable
Social preview image set
Observed: The homepage had no og:image, so shared links may show without a preview image.
Why it matters: When your link is shared in chat apps and social networks, the preview image is what people see first.
What to do: Add Open Graph tags, including og:image with a 1200 x 630 image.
71% of News & Media peers do this. Limit: Based on the homepage HTML delivered to an automated client; scripts that run later were not executed.
Priority 2 · Harden
Certificate lifetime of 100 days or less
Observed: The certificate from Amazon had a 197-day validity period, longer than the 100-day maximum that applies from March 2027.
What to do: Move to automated issuance and renewal now, while you still have time to test it.
66% of News & Media peers do this.
Priority 3 · Harden
CAA records limit who can issue certificates
Observed: No CAA record was found for lematin.ch, so any public certificate authority may issue for it.
What to do: Publish CAA records naming every CA you actually use, including the CAs your CDN uses for managed certificates. Add an iodef contact if you want reports.
On Cloudflare: Cloudflare documents which CAs its managed certificates need; include them in your CAA records.
13% of News & Media peers do this.
Priority 4 · Harden
DNSSEC signed
Observed: No DS record was found for lematin.ch at its parent zone, so its DNS answers are not DNSSEC-signed.
What to do: Enable DNSSEC at your DNS provider, then add the DS record at your registrar. Plan provider moves carefully: a stale DS record can make the domain fail to resolve.
On Cloudflare: Enable DNSSEC in DNS > Settings and add the DS record at the registrar.
6.1% of News & Media peers do this.
Guide: Website Uptime Readiness: Prepare Before Traffic Arrives
What lematin.ch already does well
Practices fewer than half of News & Media peers use.
- Content Security Policy presentContent-Security-Policy present.29% of peers
- HSTS kept for at least a yearHSTS with a 730-day max-age covering subdomains.35% of peers
- HTTP/3 advertisedHTTP/3 advertised.36% of peers
What we saw
- Homepage checked
- https://www.lematin.ch/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Amazon, 197-day validity, expiring 2027-04-14
- CDN or edge
- Amazon CloudFront
- Platform or framework
- Next.js
- DNS operators
- Cloudflare
- HSTS
- max-age 730 days, includeSubDomains, preload
- DMARC policy
- p=quarantine
- Homepage HTML
- 358 KB, gzip
- Images on homepage
- 21 (jpg 42, png 12, webp 3)
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 6
Observed 24
- HTTP requests move to HTTPS
- HSTS kept for at least a year
- 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
- HTTP/2 negotiated
- HTTP/3 advertised
- HTML compressed
- Static files cached for 30 days or more
- Modern image formats in use
- Offscreen images lazy-loaded
- No render-blocking scripts in <head>
- robots.txt published
- XML sitemap discoverable
- Reachable over IPv6
- Canonical URL declared
- Meta description written
- Mobile viewport configured
- Structured data present
- Page language declared
- At most one redirect to the homepage
Not measured 1
- security.txt published
Own lematin.ch?
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Live status for this site: Status Is Down: lematin.ch. This profile covers configuration only.