STATUS IS UPWEBSITE READINESS
Owner workspace
Explore SIU

Category benchmark · Snapshot 23 October 2026

Family & Heritage: website readiness

31 configuration checks across 69 Family & Heritage sites from the SID website catalog, with 48 individual profiles for sites in the Chrome UX Report top 50K.

Sites measured
69

all popularity bands

Median readiness index
67/100

all sites: 64

Profiles
48

top-50K sites

Weakest lane
Recover

lowest weighted score

Readiness by lane

Enable

80/100

All sites 77

Harden

61/100

All sites 56

Accelerate

60/100

All sites 64

Recover

7/100

All sites 10

Biggest gaps for Family & Heritage sites

The checks with the most room to improve, weighted by impact.

  1. Modern image formats in use

    25% observed · all sites 40%

    Serve WebP or AVIF with a JPEG or PNG fallback, either through an image CDN or by generating both formats at build time.

    Guide: AVIF, WebP, JPEG, and PNG: Choose the Right Image Format

  2. HSTS kept for at least a year

    43% observed · all sites 34%

    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.

    Guide: HTTPS and TLS Guide for Website Owners

  3. security.txt published

    12% observed · all sites 7.1%

    Publish /.well-known/security.txt with at least Contact and Expires fields, as RFC 9116 requires, and review it before it expires.

    Guide: A Practical Website Health Check for Owners

  4. DMARC policy enforces quarantine or reject

    46% observed · all sites 39%

    Publish DMARC with p=none and a reporting address first, fix any legitimate senders that fail SPF or DKIM alignment, then move to quarantine and finally reject.

    Guide: A Practical Website Health Check for Owners

  5. No render-blocking scripts in <head>

    39% observed · all sites 48%

    Add defer to scripts that need the DOM, async to independent ones such as analytics, or move them to the end of the body.

    Guide: Control Third-Party Scripts Before They Control Your Page

  6. Static files cached for 30 days or more

    50% observed · all sites 51%

    Give versioned (fingerprinted) CSS, JavaScript, fonts and images Cache-Control: public, max-age=31536000, immutable, and change the file name whenever the content changes.

    Guide: Browser Caching Guide for Website Owners

Where Family & Heritage sites lead

  • X-Content-Type-Options: nosniff66% observedall sites 48%
  • robots.txt published94% observedall sites 76%
  • CAA records limit who can issue certificates28% observedall sites 13%
  • Referrer-Policy set33% observedall sites 24%

Stack mix

CDN and edge

Platform or framework

DNS operator

Certificate authority

Readiness leaders

Family & Heritage sites in the top 50K with the highest share of observed practices (at least 26 of 31 checks measured). This lists only what we observed on 23 October 2026; owners can request a correction.

  1. openarchieven.nl90/100
  2. tayyarijeetki.in89/100
  3. familynes.in84/100
  4. kekmama.nl82/100
  5. urbia.de82/100
  6. care.com78/100
  7. haibunda.com76/100
  8. findagrave.com74/100
  9. famousbirthdays.com72/100
  10. hommages.ch72/100

All 31 checks for Family & Heritage

CheckLaneObservedAll sitesMeasured
HTTP requests move to HTTPSHarden97%91%68
HSTS kept for at least a yearHarden43%34%67
TLS 1.3 negotiatedHarden96%91%69
Certificate has more than 14 days leftHarden97%99%69
Certificate lifetime of 100 days or lessHarden54%67%69
CAA records limit who can issue certificatesHarden28%13%68
DNSSEC signedHarden10%8%69
security.txt publishedHarden12%7.1%68
DMARC policy enforces quarantine or rejectHarden46%39%69
X-Content-Type-Options: nosniffHarden66%48%67
Framing restrictedHarden60%51%67
Content Security Policy presentHarden34%32%67
Referrer-Policy setHarden33%24%67
HTTP/2 negotiatedAccelerate90%90%69
HTTP/3 advertisedAccelerate31%37%67
HTML compressedAccelerate94%93%66
Static files cached for 30 days or moreAccelerate50%51%56
Modern image formats in useAccelerate25%40%63
Offscreen images lazy-loadedAccelerate58%62%59
No render-blocking scripts in <head>Accelerate39%48%67
robots.txt publishedEnable94%76%68
XML sitemap discoverableEnable67%70%69
Reachable over IPv6Enable36%48%69
Canonical URL declaredEnable75%68%67
Meta description writtenEnable88%84%67
Mobile viewport configuredEnable99%94%67
Structured data presentEnable46%51%67
Social preview image setEnable64%57%67
Page language declaredEnable97%90%67
At most one redirect to the homepageEnable97%98%69
Nameservers spread across providersRecover7.2%10%69

Family & Heritage profiles

Readiness index shown next to each site.