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Domain report

opencitations.net

opencitations.net ranks in the top 0.45% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 13 distinct hosts observed under it.

Explore opencitations.net in the Web Graph

Connectivity

#597,988harmonic-centrality rank
Top percentile
0.45%
Hosts observed
13

From the Common Crawl cc-main-2026-jul-aug-sep hyperlink graph, 133,241,980 domains total. What this rank means

HTTPS reachability

200HTTP status

https://opencitations.net/ answered with HTTP 200.

DNS records

A
  • 137.204.119.90
AAAA
No records found.
MX
  • 10 spool.mail.gandi.net.
  • 50 fb.mail.gandi.net.
NS
  • ns-39-a.gandi.net.
  • ns-69-c.gandi.net.
  • ns-200-b.gandi.net.

Live preview

This is a live, sandboxed embed of opencitations.net — not a copy. What it shows can change any time the site itself does.

Domain registration (WHOIS / RDAP)

RDAP lookup failed (HTTP 429).

How to read WHOIS and RDAP data

SSL certificate

Certificate Transparency lookup failed (HTTP 429).

How to check when a certificate expires

HTTP & security headers

Response

Server
cloudflare
Content-Type
text/html; charset=UTF-8
Cache-Control
max-age=3600, public
Content-Encoding
Not sent

Security

Content-Security-Policy
Not sent
Strict-Transport-Security
Not sent
X-Frame-Options
Not sent
X-Content-Type-Options
Not sent
Referrer-Policy
Not sent
Permissions-Policy
Not sent

What each security header does

Redirect chain

  1. 1.http://opencitations.net/HTTP 301

    → https://opencitations.net/

  2. 2.https://opencitations.net/HTTP 200

Meta tags

Title
OpenCitations - Open Science Research Infrastructure
Description
OpenCitations is an independent infrastructure organization for open scholarship dedicated to the publication of open bibliographic and citation data.
Canonical
https://opencitations.net/
Robots
max-snippet:-1,max-image-preview:large,max-video-preview:-1
Generator
Not set
Open Graph title
OpenCitations - Open Science Research Infrastructure
Open Graph description
OpenCitations is an independent infrastructure organization for open scholarship dedicated to the publication of open bibliographic and citation data.
Open Graph image
http://wptest.invoca.me/wp-content/uploads/2024/11/Aggiungi-un-sottotitolo-1920-x-1080-px-3-1.png
Open Graph type
website
Twitter card
summary_large_image
Twitter title
OpenCitations - Open Science Research Infrastructure
Twitter image
http://wptest.invoca.me/wp-content/uploads/2024/11/Aggiungi-un-sottotitolo-1920-x-1080-px-3-1.png

robots.txt

Disallow rules (User-agent: *)
1
Disallow rules (other agents)
0

Sitemap declared:

  • https://opencitations.net/sitemap.xml

Technology detected

Best-effort, based on a small set of well-known signals — this may be incomplete.

  • Cloudflarecdn

    Server: cloudflare

  • WordPresscms

    Found "wp-content/" in the page's HTML

Related domains

Similar connectivity

Domains ranked just above and below it in the same snapshot.