radiopaedia.org
Radiopaedia.org, the peer-reviewed collaborative radiology resource
Last scanned Jul 25, 2026, 12:25 AM · 1 view
Overall score
Fair
Summary
This website uses Cloudflare Analytics hosted on Cloudflare behind Cloudflare CDN. SEO is good (75/100) and accessibility is fair (70/100). Security scores fair (70/100) and performance excellent (90/100). Top issue: Title longer than 60 characters.
- United States
- Hosted on Cloudflare
Top issues to fix
8 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.
Over half of images are missing alt text
AccessibilityAdd alt attributes to images — screen readers depend on them, and they help image SEO.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
+2 more issues — details in the sections below.
SEO
3 issue(s) found
Performance
999 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Meta tags
- Title
- Radiopaedia.org, the peer-reviewed collaborative radiology resource
- Description
- Canonical
- https://radiopaedia.org/
- Language
- en-US
- 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
- Cloudflare
- CDN provider
- Cloudflare
- IP address
- 172.66.159.4
- ASN
- AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX |
|
| TXT | — |
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- radiopaedia.org
- Valid from
- Jul 15, 2026
- Valid to
- Oct 13, 2026
- Days until expiry
- 80
- SAN domains
- radiopaedia.org, *.radiopaedia.org
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 1 · H2 10 · H3 4
Links
106 internal · 0 external · 20 broken
Images
17 total · 10 missing alt
Scripts / Styles
58 scripts · 5 stylesheets
JS / CSS size
432 KB · 524 KB
Page size
64.0 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 34
- sitemap.xml
- Found
- URLs in sitemap
- -1
SEO issues
- Title longer than 60 characters
- Missing meta description
- No structured data (JSON-LD) found
Accessibility issues
- Over half of images are missing alt text
Scan details
- Requested URL
- https://radiopaedia.org
- Final URL
- https://radiopaedia.org
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 998 ms
- HTML size
- 64.0 KB
- Redirect chain
- https://radiopaedia.org
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does radiopaedia.org use?
- radiopaedia.org is built with Ruby on Rails, jQuery, Cloudflare Analytics.
- Is radiopaedia.org secure (HTTPS)?
- Yes. radiopaedia.org uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 13, 2026.
- Who hosts radiopaedia.org?
- radiopaedia.org is hosted on Cloudflare, behind Cloudflare CDN.
- What is radiopaedia.org's SEO score?
- radiopaedia.org scored 75/100 for SEO in the latest analysis (fair).
- What is radiopaedia.org's overall website score?
- radiopaedia.org has an overall SiteGraph score of 77/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card