core.ac.uk

Live check Visit ↗

core.ac.uk is ranked #6,372 in the Tranco list of the world's most popular websites (list of Oct 13, 2026), up 109 places in four weeks. Its homepage uses Next.js, React and Cloudflare Web Analytics. It is served through Cloudflare.

Global rank

#6,372

▲ 29 this week

Domain age

—

Registration date unavailable

Technologies

detected on the homepage

SEO score

74/100

homepage checks

Popularity rank

#6,372 of the top 1 million sites in the Tranco research ranking, which averages several traffic and DNS sources over 30 days. Best rank in the period shown: #6,024.

Weekly Tranco rank (lower is more popular).

See where core.ac.uk sits in the top 10,000

Domain registration

Registration data was not available from the registry.

Technology stack

JavaScript frameworks

Next.js React

Analytics

Cloudflare Web Analytics

CDN

Cloudflare

Detected from the homepage HTML and response headers on Oct 14, 2026. Tools loaded only after scripts run (or after consent banners) may be missing.

Homepage SEO check

Checked from the HTML our scanner received on Oct 14, 2026. Content added later by JavaScript isn't counted.

74/100

https://core.ac.uk/

The world’s largest collection of open access research papers

13 passed · 8 warnings · 2 failed

Content

✓Title61 characters
✓Meta description61 characters
✕H1 headingMissing in the served HTML
✓Subheadings8 H2 headings
✓Image alt textAll 44 images have alt text
✓Content lengthAbout 751 words

Indexing

✓IndexableNo noindex directive
!Canonical URLMissing
✓robots.txtFound
✓XML sitemapFound
✓Language attributeen
!Structured dataNo JSON-LD or microdata

Social sharing

✕Open GraphMissing
!Twitter / X cardMissing

Technical

✓HTTPSServed over HTTPS
✓Mobile viewportFound
✓FaviconFound
✓Character encodingutf-8

Security headers

!Strict-Transport-SecurityNot set
!Content-Security-PolicyNot set
!Clickjacking protectionNot set
!X-Content-Type-OptionsNot set
!Referrer-PolicyNot set

Server response

Final URL: https://core.ac.uk/
HTTP status: 200
Server: cloudflare
Response time: 231 ms (first byte 226 ms, from our scanner in a US data centre)
HTML size: 90 KB
Compression: br

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#3,673	17track.net	Next.js, React, Cloudflare
#4,170	hybrid-analysis.com	Next.js, React, Cloudflare

Sites ranked near core.ac.uk

Rank	Website	Registered	Built with
#6,367	tlivepush.com	2020	—
#6,368	telecinco.es	—	Astro, Envoy, Varnish
#6,369	airbridge.io	2015	Next.js, React, Vercel
#6,370	laztys.tech	2023	—
#6,371	gocache.net	2013	—
#6,373	videy.co	—	Cloudflare, Cloudflare Web Analytics, Google Analytics
#6,374	nngroup.com	1998	Google Tag Manager, Sucuri
#6,375	bunnings.com.au	—	Cloudflare
#6,376	sf.net	1994	Cloudflare, Google Analytics, Matomo
#6,377	ura.news	2016	—

Questions about core.ac.uk

How popular is core.ac.uk?

core.ac.uk is #6,372 worldwide in the Tranco list published Oct 13, 2026.

What is core.ac.uk built with?

We detected Next.js, React, Cloudflare Web Analytics and Cloudflare on its homepage.