Website readiness profile · Snapshot 23 October 2026
aerzteblatt.de
aerzteblatt.de's public homepage, certificate and DNS checked against 31 practices and compared with 3,856 News & Media sites.
- Readiness index
- 71/100
- Ahead of
- 61%
- Practices observed
- 19/31
- Popularity band
- Top 50K
News & Media median 68
of measured News & Media sites
0 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: aerzteblatt.de. Thin bar: News & Media peer median.
Enable
69/100
Peers 89
Harden
78/100
Peers 56
Accelerate
63/100
Peers 68
Recover
0/100
Peers 11
Priority fixes for aerzteblatt.de
Ordered by impact and by how common each practice is among peers.
Priority 1 · Accelerate
Modern image formats in use
Observed: The homepage had 52 images and none used WebP or AVIF.
Why it matters: WebP and AVIF are typically much smaller than JPEG or PNG at similar quality, and images are often the heaviest part of a page.
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.
On Next.js: The next/image component serves optimized formats automatically.
44% of News & Media peers do this. Limit: Based on the homepage HTML delivered to an automated client; scripts that run later were not executed.
Guide: AVIF, WebP, JPEG, and PNG: Choose the Right Image Format
Priority 2 · 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.
89% of News & Media peers do this.
Priority 3 · Accelerate
No render-blocking scripts in <head>
Observed: The homepage <head> loaded 1 external script 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.
On Next.js: Use the next/script component with an appropriate loading strategy.
42% of News & Media peers do this.
Guide: Control Third-Party Scripts Before They Control Your Page
Priority 4 · Enable
Structured data present
Observed: The homepage had no JSON-LD structured data.
What to do: Add JSON-LD for your organization and main content types, then test it with Google's Rich Results Test.
76% of News & Media peers do this.
What aerzteblatt.de already does well
Practices fewer than half of News & Media peers use.
- Referrer-Policy setReferrer-Policy present.22% of peers
- Content Security Policy presentContent-Security-Policy present.29% of peers
- HSTS kept for at least a yearHSTS with a 365-day max-age covering subdomains.35% of peers
What we saw
- Homepage checked
- https://www.aerzteblatt.de/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Sectigo, 198-day validity, expiring 2027-04-09
- CDN or edge
- Amazon CloudFront
- Platform or framework
- Next.js
- DNS operators
- GoDaddy DNS
- HSTS
- max-age 365 days, includeSubDomains, preload
- DMARC policy
- p=reject
- Homepage HTML
- 456 KB, br
- Images on homepage
- 52
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 12
- Certificate lifetime of 100 days or less
- CAA records limit who can issue certificates
- DNSSEC signed
- security.txt published
- HTTP/3 advertised
- Modern image formats in use
- No render-blocking scripts in <head>
- Reachable over IPv6
- Canonical URL declared
- Structured data present
- Social preview image set
- Nameservers spread across providers
Observed 19
- 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
- Referrer-Policy set
- HTTP/2 negotiated
- HTML compressed
- Static files cached for 30 days or more
- Offscreen images lazy-loaded
- robots.txt published
- XML sitemap discoverable
- Meta description written
- Mobile viewport configured
- Page language declared
- At most one redirect to the homepage
Own aerzteblatt.de?
Re-run the checks after a change, or verify the site in a free workspace to save reports with history, compare against similar sites and competitors, and track a private action plan. What owners get.
Live status for this site: Status Is Down: aerzteblatt.de. This profile covers configuration only.