cert.org
CERT | CMU Software Engineering Institute
Last scanned Aug 1, 2026, 5:00 PM · 11 views
Overall score
Excellent
Summary
The Software Engineering Institute is leading and advancing software and cybersecurity to solve the nation's toughest problems. This website uses Django. SEO is good (80/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (90/100). Top issue: No structured data (JSON-LD) found.
The Software Engineering Institute is leading and advancing software and cybersecurity to solve the nation's toughest problems.
Top issues to fix
5 issues found
1 cookie without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
20 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
3 issue(s) found
Performance
1.91 s
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
+4 overall since Jul 25, 2026
- Overall
- 92
- SEO
- 80
- Security
- 100
- Performance
- 90
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
The Software Engineering Institute is leading and advancing software and cybersecurity to solve the nation's toughest problems.
Contact
Email, phone, and address published on this site's own pages.
- Phone
- +14122685800
Meta tags
- Title
- CERT | CMU Software Engineering Institute
- Description
- The Software Engineering Institute is leading and advancing software and cybersecurity to solve the nation's toughest problems.
- Canonical
- https://www.sei.cmu.edu/divisions/cert/
- Language
- en
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- index,follow
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- InCommon, LLC
- Subject
- www.sei.cmu.edu
- Valid from
- Jul 13, 2026
- Valid to
- Jan 27, 2027
- Days until expiry
- 179
- SAN domains
- www.sei.cmu.edu, insights.sei.cmu.edu, partner-application.sei.cmu.edu, resources.sei.cmu.edu, sei.cmu.edu
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyEnabled
Compression: gzip · 3 cookie(s) observed
Content & assets
Headings
H1 1 · H2 8 · H3 0
Links
33 internal · 46 external · 20 broken
Images
9 total · 0 missing alt
Scripts / Styles
5 scripts · 5 stylesheets
JS / CSS size
4.9 KB · 0 B
Page size
156 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://cert.org
- Final URL
- https://www.sei.cmu.edu/divisions/cert/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 1.91 s
- HTML size
- 156 KB
- Redirect chain
- https://cert.org → https://www.sei.cmu.edu/certsite/ → http://www.sei.cmu.edu/divisions/cert/ → https://www.sei.cmu.edu/divisions/cert/
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Frequently asked questions
- What technology does cert.org use?
- cert.org is built with Django.
- Is cert.org secure (HTTPS)?
- Yes. cert.org uses TLS 1.3 with a certificate issued by InCommon, LLC, valid until Jan 27, 2027.
- Who hosts cert.org?
- Hosting provider information for cert.org is not available yet.
- What is cert.org's SEO score?
- cert.org scored 80/100 for SEO in the latest analysis (great).
- What is cert.org's overall website score?
- cert.org has an overall SiteGraph score of 92/100, combining SEO, performance, security, and accessibility.
- Has cert.org's score changed over time?
- cert.org's overall score has improved by 4 points (from 88 to 92) since Jul 25, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card