Website readiness profile · Snapshot 23 October 2026
windguru.cz
windguru.cz's public homepage, certificate and DNS checked against 31 practices and compared with 190 Weather Forecast sites.
- Readiness index
- 55/100
- Ahead of
- 29%
- Practices observed
- 14/29
- Popularity band
- Top 5K
Weather Forecast median 63
of measured Weather Forecast sites
2 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: windguru.cz. Thin bar: Weather Forecast peer median.
Enable
49/100
Peers 76
Harden
60/100
Peers 54
Accelerate
50/100
Peers 59
Recover
100/100
Peers 14
Priority fixes for windguru.cz
Ordered by impact and by how common each practice is among peers.
Priority 1 · Harden
HSTS kept for at least a year
Observed: The homepage response did not include a Strict-Transport-Security header.
Why it matters: HSTS tells browsers to use HTTPS for your host on every later visit, which removes the window where a first HTTP request can be intercepted.
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.
39% of Weather Forecast peers do this. Limit: Read from the homepage response only; other pages or regions may send different headers.
Priority 2 · Accelerate
Static files cached for 30 days or more
Observed: A same-site stylesheet or script was cacheable for no max-age, short of the 30-day benchmark.
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.
48% of Weather Forecast peers do this.
Priority 3 · 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.
66% of Weather Forecast peers do this.
Guide: XML Sitemap Guide: Include Only URLs You Stand Behind
Priority 4 · Accelerate
No render-blocking scripts in <head>
Observed: The homepage <head> loaded 3 external scripts 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.
56% of Weather Forecast peers do this.
Guide: Control Third-Party Scripts Before They Control Your Page
What windguru.cz already does well
Practices fewer than half of Weather Forecast peers use.
- DNSSEC signedDNSSEC delegation (DS record) present.12% of peers
- Nameservers spread across providersNameservers spread across more than one operator.14% of peers
- Content Security Policy presentContent-Security-Policy present.22% of peers
What we saw
- Homepage checked
- https://www.windguru.cz/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Let's Encrypt, 89-day validity, expiring 2027-01-07
- DNS operators
- 2 self-run or other nameserver domains
- DMARC policy
- p=none
- Homepage HTML
- 46 KB, gzip
- Images on homepage
- 1 (svg 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 15
- HSTS kept for at least a year
- CAA records limit who can issue certificates
- security.txt published
- DMARC policy enforces quarantine or reject
- X-Content-Type-Options: nosniff
- Referrer-Policy set
- HTTP/3 advertised
- Static files cached for 30 days or more
- No render-blocking scripts in <head>
- XML sitemap discoverable
- Reachable over IPv6
- Canonical URL declared
- Structured data present
- Social preview image set
- Page language declared
Observed 14
- 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
- Framing restricted
- Content Security Policy present
- HTTP/2 negotiated
- HTML compressed
- robots.txt published
- Meta description written
- Mobile viewport configured
- At most one redirect to the homepage
- Nameservers spread across providers
Not measured 2
- Modern image formats in use
- Offscreen images lazy-loaded
Own windguru.cz?
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Live status for this site: Status Is Down: windguru.cz. This profile covers configuration only.