Website readiness profile · Snapshot 23 October 2026
thecalculatorsite.com
thecalculatorsite.com's public homepage, certificate and DNS checked against 31 practices and compared with 492 Web Tools sites.
- Readiness index
- 74/100
- Ahead of
- 73%
- Practices observed
- 20/29
- Popularity band
- Top 50K
Web Tools median 67
of measured Web Tools sites
2 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: thecalculatorsite.com. Thin bar: Web Tools peer median.
Enable
79/100
Peers 84
Harden
77/100
Peers 55
Accelerate
67/100
Peers 69
Recover
0/100
Peers 6
Priority fixes for thecalculatorsite.com
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 4 hours, 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.
54% of Web Tools peers do this. Limit: Read from the homepage response only; other pages or regions may send different headers.
Priority 2 · 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.
73% of Web Tools peers do this.
Guide: XML Sitemap Guide: Include Only URLs You Stand Behind
Priority 3 · Enable
Page language declared
Observed: The homepage <html> element had no lang attribute.
What to do: Set lang on the html element (for example lang="en") and on any sections in another language.
94% of Web Tools 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.
56% of Web Tools peers do this.
What thecalculatorsite.com already does well
Practices fewer than half of Web Tools peers use.
- DMARC policy enforces quarantine or rejectDMARC policy p=reject.23% of peers
- HSTS kept for at least a yearHSTS with a 365-day max-age covering subdomains.30% of peers
- Referrer-Policy setReferrer-Policy present.30% of peers
What we saw
- Homepage checked
- https://www.thecalculatorsite.com/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Google Trust Services, 90-day validity, expiring 2026-11-27
- CDN or edge
- Cloudflare
- DNS operators
- Cloudflare
- HSTS
- max-age 365 days, includeSubDomains
- DMARC policy
- p=reject
- Homepage HTML
- 316 KB, br
- Images on homepage
- 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 9
Observed 20
- HTTP requests move to HTTPS
- HSTS kept for at least a year
- TLS 1.3 negotiated
- Certificate has more than 14 days left
- Certificate lifetime of 100 days or less
- DMARC policy enforces quarantine or reject
- X-Content-Type-Options: nosniff
- Framing restricted
- Referrer-Policy set
- HTTP/2 negotiated
- HTML compressed
- No render-blocking scripts in <head>
- robots.txt published
- Reachable over IPv6
- Canonical URL declared
- Meta description written
- Mobile viewport configured
- Structured data present
- Social preview image set
- At most one redirect to the homepage
Not measured 2
- Modern image formats in use
- Offscreen images lazy-loaded
Own thecalculatorsite.com?
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: thecalculatorsite.com. This profile covers configuration only.