Website readiness profile · Snapshot 23 October 2026
mod.io
mod.io's public homepage, certificate and DNS checked against 31 practices and compared with 231 Programming & Software sites.
- Readiness index
- 78/100
- Ahead of
- 81%
- Practices observed
- 21/28
- Popularity band
- Top 50K
Programming & Software median 68
of measured Programming & Software sites
3 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: mod.io. Thin bar: Programming & Software peer median.
Enable
69/100
Peers 81
Harden
85/100
Peers 59
Accelerate
80/100
Peers 65
Recover
0/100
Peers 7
Priority fixes for mod.io
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 2 days, 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.
50% of Programming & Software 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.
69% of Programming & Software peers do this.
Guide: XML Sitemap Guide: Include Only URLs You Stand Behind
Priority 3 · 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.
74% of Programming & Software peers do this.
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.
52% of Programming & Software peers do this.
What mod.io already does well
Practices fewer than half of Programming & Software peers use.
- DNSSEC signedDNSSEC delegation (DS record) present.12% of peers
- Referrer-Policy setReferrer-Policy present.24% of peers
- Content Security Policy presentContent-Security-Policy present.32% of peers
What we saw
- Homepage checked
- https://mod.io/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Google Trust Services, 90-day validity, expiring 2027-01-11
- CDN or edge
- Cloudflare
- DNS operators
- Cloudflare
- HSTS
- max-age 365 days, includeSubDomains, preload
- DMARC policy
- p=reject
- Homepage HTML
- 3 KB, br
- Images on homepage
- 0
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 21
- 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
- DNSSEC signed
- DMARC policy enforces quarantine or reject
- X-Content-Type-Options: nosniff
- Framing restricted
- Content Security Policy present
- Referrer-Policy set
- HTTP/2 negotiated
- HTTP/3 advertised
- HTML compressed
- No render-blocking scripts in <head>
- robots.txt published
- Reachable over IPv6
- Meta description written
- Mobile viewport configured
- Social preview image set
- Page language declared
- At most one redirect to the homepage
Not measured 3
- HTTP requests move to HTTPS
- Modern image formats in use
- Offscreen images lazy-loaded
Own mod.io?
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: mod.io. This profile covers configuration only.