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SGSiteGraph

zenodo.org

Zenodo

Last scanned Jul 29, 2026, 3:00 PM · 11 views

78

Overall score

Fair

Summary

This website uses Nginx. SEO is fair (50/100) and accessibility is excellent (90/100). Security scores excellent (100/100) and performance good (80/100). Top issue: Missing meta description.

Top issues to fix

9 issues found · 3 high priority

  • Missing meta description

    SEO

    Add a ~150-character meta description to control your search-result snippet and lift click-through rate.

  • No H1 heading found

    SEO

    Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.

  • Slow estimated load (6.3s)

    Performance

    Use a CDN, enable caching/compression, and cut render-blocking assets — every extra second costs conversions.

  • Missing canonical link

    SEO

    Add <link rel="canonical"> so search engines know which URL variant to index.

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

  • Missing OpenGraph tags

    SEO

    Add og:title/og:description/og:image so shared links render a proper preview card.

+3 more issues — details in the sections below.

50

SEO

7 issue(s) found

80

Performance

6.25 s

100

Security

HTTPS & header checks

90

Accessibility

1 issue(s) found

Score history

+2 overall since Jul 21, 2026

Overall
78
SEO
50
Security
100
Performance
80
Accessibility
90

Contact

Email, phone, and address published on this site's own pages.

Meta tags

Title
Zenodo
Description
Canonical
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
—
og:description
—
og:type
—
og:url
—

Twitter Card

twitter:card
—
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

Nginx

Hosting & CDN

Hosting provider
—
CDN provider
—
IP address
—
ASN
—

DNS records

TypeValue
A—
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Sectigo Limited
Subject
*.zenodo.org
Valid from
May 5, 2026
Valid to
Nov 19, 2026
Days until expiry
113
SAN domains
*.zenodo.org, zenodo.org

Security headers

  • Strict-Transport-SecurityEnabled
  • Content-Security-PolicyEnabled
  • X-Frame-OptionsEnabled
  • X-Content-Type-OptionsEnabled
  • Referrer-PolicyEnabled
  • Permissions-PolicyEnabled

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 0 · H2 10 · H3 0

Links

50 internal · 32 external · 20 broken

Images

26 total · 0 missing alt

Scripts / Styles

29 scripts · 1 stylesheets

JS / CSS size

2.1 KB · 0 B

Page size

68.2 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Missing meta description
  • Missing canonical link
  • No H1 heading found
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • No H1 heading found

Scan details

Requested URL
https://zenodo.org
Final URL
https://zenodo.org
HTTP status
200
HTTP version
HTTP/1.1
Response time
6.25 s
HTML size
68.2 KB
Redirect chain
https://zenodo.org

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does zenodo.org use?
zenodo.org is built with Nginx.
Is zenodo.org secure (HTTPS)?
Yes. zenodo.org uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Nov 19, 2026.
Who hosts zenodo.org?
Hosting provider information for zenodo.org is not available yet.
What is zenodo.org's SEO score?
zenodo.org scored 50/100 for SEO in the latest analysis (fair).
What is zenodo.org's overall website score?
zenodo.org has an overall SiteGraph score of 78/100, combining SEO, performance, security, and accessibility.
Has zenodo.org's score changed over time?
zenodo.org's overall score has improved by 2 points (from 76 to 78) since Jul 21, 2026.