cshl.edu
CSHL Home Page | Cold Spring Harbor Laboratory
Last scanned Jul 26, 2026, 5:17 AM · 1 view
Overall score
Fair
Summary
This website uses WordPress hosted on Cloudflare behind Cloudflare CDN. SEO is good (75/100) and accessibility is fair (60/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing meta description.
- United States
- Hosted on Cloudflare
Top issues to fix
9 issues found · 5 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.
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-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
+3 more issues — details in the sections below.
SEO
3 issue(s) found
Performance
990 ms
Security
HTTPS & header checks
Accessibility
2 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.
- Phone
- 1-516-367-8800
Meta tags
- Title
- CSHL Home Page | Cold Spring Harbor Laboratory
- Description
- Canonical
- https://www.cshl.edu/
- Language
- en-US
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
- Manifest
- https://www.cshl.edu/wp-content/themes/cshl-coresite/favicons/manifest.json
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- Cloudflare
- CDN provider
- Cloudflare
- IP address
- 141.193.213.20
- ASN
- AS209242 (CLOUDFLARESPECTRUM - Cloudflare London, LLC, US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- www.cshl.edu
- Valid from
- Jun 14, 2026
- Valid to
- Sep 12, 2026
- Days until expiry
- 48
- SAN domains
- www.cshl.edu
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 6 · H3 8
Links
88 internal · 11 external · 1 broken
Images
11 total · 6 missing alt
Scripts / Styles
48 scripts · 0 stylesheets
JS / CSS size
90.9 KB · 54.6 KB
Page size
231 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Found
- URLs in sitemap
- -1
SEO issues
- Missing meta description
- No H1 heading found
- robots.txt not found
Accessibility issues
- Over half of images are missing alt text
- No H1 heading found
Scan details
- Requested URL
- https://cshl.edu
- Final URL
- https://www.cshl.edu/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 986 ms
- HTML size
- 231 KB
- Redirect chain
- https://cshl.edu → https://www.cshl.edu/
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Frequently asked questions
- What technology does cshl.edu use?
- cshl.edu is built with WordPress, Google Analytics, Meta Pixel.
- Is cshl.edu secure (HTTPS)?
- Yes. cshl.edu uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 12, 2026.
- Who hosts cshl.edu?
- cshl.edu is hosted on Cloudflare, behind Cloudflare CDN.
- What is cshl.edu's SEO score?
- cshl.edu scored 75/100 for SEO in the latest analysis (fair).
- What is cshl.edu's overall website score?
- cshl.edu has an overall SiteGraph score of 76/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card