crl.edu
Center for Research Libraries | Center for Research Libraries
Last scanned Jul 26, 2026, 3:19 PM
Overall score
Fair
Summary
This website uses Nginx hosted on DigitalOcean. SEO is fair (65/100) and accessibility is excellent (100/100). Security scores poor (30/100) and performance good (80/100). Top issue: Title longer than 60 characters.
- United States
- Hosted on DigitalOcean
Top issues to fix
8 issues found · 3 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.
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.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
+2 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
2.81 s
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Meta tags
- Title
- Center for Research Libraries | Center for Research Libraries
- Description
- Canonical
- https://www.crl.edu/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- DigitalOcean
- CDN provider
- —
- IP address
- 138.197.112.180
- ASN
- AS14061 (DIGITALOCEAN-ASN - DigitalOcean, LLC, US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME |
|
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- www.crl.edu
- Valid from
- Jul 16, 2026
- Valid to
- Oct 14, 2026
- Days until expiry
- 79
- SAN domains
- www.crl.edu
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 4 · H3 12
Links
41 internal · 10 external · 0 broken
Images
6 total · 0 missing alt
Scripts / Styles
9 scripts · 7 stylesheets
JS / CSS size
731 KB · 1016 KB
Page size
87.4 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 27
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Title longer than 60 characters
- Missing meta description
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://crl.edu
- Final URL
- https://www.crl.edu/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 2.80 s
- HTML size
- 87.4 KB
- Redirect chain
- https://crl.edu → https://www.crl.edu/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does crl.edu use?
- crl.edu is built with Drupal, Nginx.
- Is crl.edu secure (HTTPS)?
- Yes. crl.edu uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 14, 2026.
- Who hosts crl.edu?
- crl.edu is hosted on DigitalOcean.
- What is crl.edu's SEO score?
- crl.edu scored 65/100 for SEO in the latest analysis (fair).
- What is crl.edu's overall website score?
- crl.edu has an overall SiteGraph score of 67/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card