Website readiness profile · Snapshot 23 October 2026
zenodo.org
zenodo.org's public homepage, certificate and DNS checked against 31 practices and compared with 696 Literary & Knowledge sites.
- Readiness index
- 53/100
- Ahead of
- 23%
- Practices observed
- 15/31
- Popularity band
- Top 50K
Literary & Knowledge median 62
of measured Literary & Knowledge sites
0 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: zenodo.org. Thin bar: Literary & Knowledge peer median.
Enable
51/100
Peers 78
Harden
69/100
Peers 51
Accelerate
33/100
Peers 62
Recover
0/100
Peers 6
Priority fixes for zenodo.org
Ordered by impact and by how common each practice is among peers.
Priority 1 · Accelerate
HTTP/2 negotiated
Observed: The TLS handshake selected HTTP/1.1 instead of HTTP/2.
Why it matters: HTTP/2 sends many files over one connection, which speeds up pages with lots of images, styles and scripts.
What to do: Enable HTTP/2 on your CDN or server. Most CDNs do this by default.
89% of Literary & Knowledge peers do this. Limit: Certificate and protocol were observed from one vantage point; CDNs can present different certificates by region.
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 Literary & Knowledge peers do this.
Guide: XML Sitemap Guide: Include Only URLs You Stand Behind
Priority 3 · 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.
On Cloudflare: Use Cache Rules to set edge and browser TTLs for static file paths.
49% of Literary & Knowledge peers do this.
Priority 4 · Enable
Meta description written
Observed: The homepage had no meta description.
What to do: Write a short, specific description of the page for people, not a list of keywords.
88% of Literary & Knowledge peers do this.
Guide: Meta Titles and Descriptions That Match Search Intent
What zenodo.org already does well
Practices fewer than half of Literary & Knowledge peers use.
- Content Security Policy presentContent-Security-Policy present.18% of peers
- Referrer-Policy setReferrer-Policy present.22% of peers
- HSTS kept for at least a yearHSTS with a 365-day max-age covering subdomains.28% of peers
What we saw
- Homepage checked
- https://zenodo.org/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3
- Certificate
- Sectigo, 198-day validity, expiring 2026-11-19
- DNS operators
- Cloudflare
- HSTS
- max-age 365 days, includeSubDomains
- DMARC policy
- p=none
- Homepage HTML
- 68 KB, gzip
- Images on homepage
- 25 (svg 14, png 3)
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 16
- Certificate lifetime of 100 days or less
- CAA records limit who can issue certificates
- DNSSEC signed
- security.txt published
- DMARC policy enforces quarantine or reject
- HTTP/2 negotiated
- HTTP/3 advertised
- Static files cached for 30 days or more
- Modern image formats in use
- Offscreen images lazy-loaded
- XML sitemap discoverable
- Canonical URL declared
- Meta description written
- Structured data present
- Social preview image set
- Nameservers spread across providers
Observed 15
- HTTP requests move to HTTPS
- HSTS kept for at least a year
- TLS 1.3 negotiated
- Certificate has more than 14 days left
- X-Content-Type-Options: nosniff
- Framing restricted
- Content Security Policy present
- Referrer-Policy set
- HTML compressed
- No render-blocking scripts in <head>
- robots.txt published
- Reachable over IPv6
- Mobile viewport configured
- Page language declared
- At most one redirect to the homepage
Own zenodo.org?
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: zenodo.org. This profile covers configuration only.