home.cern
Home | CERN
Last scanned Jul 25, 2026, 12:25 PM · 1 view
Overall score
Fair
Summary
This website uses WordPress hosted on CERN - CERN - European Organization for Nuclear Research, CH. SEO is fair (60/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance excellent (90/100). Top issue: Missing meta description.
- Switzerland
- Hosted on CERN - CERN - European Organization for Nuclear Research, CH
Top issues to fix
9 issues found · 4 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
+3 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
262 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- Home | CERN
- Description
- Canonical
- https://home.cern/
- Language
- en-GB
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- max-image-preview:large
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- CERN - CERN - European Organization for Nuclear Research, CH
- CDN provider
- —
- IP address
- 188.184.76.40
- ASN
- AS513 (CERN - CERN - European Organization for Nuclear Research, CH)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX | — |
| TXT | — |
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Sectigo Limited
- Subject
- www.cern.ch
- Valid from
- Nov 5, 2025
- Valid to
- Nov 24, 2026
- Days until expiry
- 122
- SAN domains
- www.cern.ch, *.app.cern.ch, *.apptest.cern.ch, *.docs.cern.ch, *.web.cern.ch, *.webtest.cern.ch, about.cern, accelerating-news.eu, acceleratingnews.eu, accelerators.cern, againstcovid19.cern, alice.cern, aliceinfo.cern.ch, ams02.space, antimatter.cern, arts.cern, at.cern, atlas.cern, awake.cern, beamlineforschools.cern, beams.cern, belgium.cern, bulletinserv.cern.ch, careers.cern, cern.ch, cern.int, cern70.cern, cernandsocietyfoundation.cern, chis.cern, cixp.net, clear.cern, clic.cern, cms.cern, computing.cern, cosmicrays.cern, darkmatter.cern, dashb-cms-vo-feed.cern.ch, education.cern, engineering.cern, environment.cern, europeanstrategy.cern, experiments.cern, flair.cern, fluka.cern, giving.cern, groups.cern.ch, higgsboson.cern, home.cern, hse.cern, ideasquare.cern, ifast-project.eu, info.cern.ch, internationalrelations.cern, ippog.org, isolde.cern, jobs.cern, knowledge.cern, kt.cern, learn.cern, lhc.cern, library.cern, medicis.cern, monit.cern.ch, news.cern, newsroom.cern, nic.cern, norway.cern, open-quantum-institute.cern, opendays.cern, openlab.cern, openscience.cern, opensource.cern, oqi.cern, particles.cern, pensionfund.cern.ch, physics.cern, press.cern, quantum.cern, quantum.cern.ch, root.cern, root.cern.ch, science.cern, sciencegateway.cern, scienceinschool.org, scientific-info.cern, search.cern.ch, sparks.cern, staff-association.cern, standardmodel.cern, supersymmetry.cern, teachers.cern, technology.cern, theory.cern, united-states.cern, ventureconnect.cern, visit.cern, voisins.cern, webfest.cern, www.ams02.space, www.arts.cern, www.atlas.cern, www.cern, www.cern.int, www.cixp.net, www.home.cern
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 0 · H2 20 · H3 2
Links
76 internal · 20 external · 0 broken
Images
45 total · 1 missing alt
Scripts / Styles
93 scripts · 12 stylesheets
JS / CSS size
301 KB · 308 KB
Page size
290 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 7
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing meta description
- No H1 heading found
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://home.cern
- Final URL
- https://home.cern
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 257 ms
- HTML size
- 290 KB
- Redirect chain
- https://home.cern
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does home.cern use?
- home.cern is built with React, PHP, WordPress, jQuery.
- Is home.cern secure (HTTPS)?
- Yes. home.cern uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Nov 24, 2026.
- Who hosts home.cern?
- home.cern is hosted on CERN - CERN - European Organization for Nuclear Research, CH.
- What is home.cern's SEO score?
- home.cern scored 60/100 for SEO in the latest analysis (fair).
- What is home.cern's overall website score?
- home.cern has an overall SiteGraph score of 75/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card