Website readiness profile · Snapshot 23 October 2026
jpdb.io
jpdb.io's public homepage, certificate and DNS checked against 31 practices and compared with 1,516 Education & Online Learning sites.
- Readiness index
- 72/100
- Ahead of
- 78%
- Practices observed
- 17/27
- Popularity band
- Top 50K
Education & Online Learning median 61
of measured Education & Online Learning sites
4 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: jpdb.io. Thin bar: Education & Online Learning peer median.
Enable
62/100
Peers 75
Harden
73/100
Peers 54
Accelerate
87/100
Peers 57
Recover
0/100
Peers 13
Priority fixes for jpdb.io
Ordered by impact and by how common each practice is among peers.
Priority 1 · Enable
XML sitemap discoverable
Observed: No sitemap was listed in robots.txt or found at /sitemap.xml.
Why it matters: A sitemap helps search engines find new and updated pages, especially on large or frequently updated sites.
What to do: Generate an XML sitemap of canonical URLs, reference it in robots.txt and submit it in Google Search Console.
65% of Education & Online Learning peers do this. Limit: Only the standard location was requested, once, at the time of the check.
Guide: XML Sitemap Guide: Include Only URLs You Stand Behind
Priority 2 · Harden
DMARC policy enforces quarantine or reject
Observed: No DMARC record was found at _dmarc.jpdb.io.
What to do: 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.
36% of Education & Online Learning peers do this.
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.
91% of Education & Online Learning peers do this.
Priority 4 · Enable
Social preview image set
Observed: The homepage had no og:image, so shared links may show without a preview image.
What to do: Add Open Graph tags, including og:image with a 1200 x 630 image.
52% of Education & Online Learning peers do this.
What jpdb.io already does well
Practices fewer than half of Education & Online Learning peers use.
- CAA records limit who can issue certificatesCAA limits issuance to buypass.no, letsencrypt.org.13% of peers
- Content Security Policy presentContent-Security-Policy present.25% of peers
- HSTS kept for at least a yearHSTS with a 730-day max-age covering subdomains.34% of peers
What we saw
- Homepage checked
- https://jpdb.io/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Let's Encrypt, 89-day validity, expiring 2027-01-11
- DNS operators
- Namecheap DNS
- HSTS
- max-age 730 days, includeSubDomains, preload
- Homepage HTML
- 12 KB, br
- 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 10
Observed 17
- 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
- CAA records limit who can issue certificates
- X-Content-Type-Options: nosniff
- Framing restricted
- Content Security Policy present
- HTTP/2 negotiated
- HTML compressed
- Static files cached for 30 days or more
- No render-blocking scripts in <head>
- Canonical URL declared
- Meta description written
- Mobile viewport configured
- Structured data present
- At most one redirect to the homepage
Not measured 4
- HTTP requests move to HTTPS
- Modern image formats in use
- Offscreen images lazy-loaded
- robots.txt published
Own jpdb.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: jpdb.io. This profile covers configuration only.