csb.gov
U.S. Chemical Safety and Hazard Investigation Board | CSB
Last scanned Aug 24, 2026, 1:21 PM
Overall score
Great
Summary
The CSB is an independent federal agency charged with investigating industrial chemical accidents. This website uses Google Analytics behind Cloudflare CDN. SEO is fair (65/100) and accessibility is excellent (100/100). Security scores excellent (95/100) and performance excellent (90/100). Top issue: Meta description longer than 160 characters.
The CSB is an independent federal agency charged with investigating industrial chemical accidents. Headquartered in Washington, DC, the agency's board members are appointed by the President and confirmed by the Senate. The CSB conducts root cause investigations of chemical accidents at fixed industrial facilities. Root causes are usually deficiencies in safety management systems, but can be any factor that would have prevented the accident if that factor had not occurred.
Top issues to fix
8 issues found
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
2 cookies without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
Missing OpenGraph tags
SEOAdd og:title/og:description/og:image so shared links render a proper preview card.
+2 more issues — details in the sections below.
SEO
6 issue(s) found
Performance
1.47 s
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
The CSB is an independent federal agency charged with investigating industrial chemical accidents. Headquartered in Washington, DC, the agency's board members are appointed by the President and confirmed by the Senate. The CSB conducts root cause investigations of chemical accidents at fixed industrial facilities. Root causes are usually deficiencies in safety management systems, but can be any factor that would have prevented the accident if that factor had not occurred.
Meta tags
- Title
- U.S. Chemical Safety and Hazard Investigation Board | CSB
- Description
- The CSB is an independent federal agency charged with investigating industrial chemical accidents. Headquartered in Washington, DC, the agency's board members are appointed by the President and confirmed by the Senate. The CSB conducts root cause investigations of chemical accidents at fixed industrial facilities. Root causes are usually deficiencies in safety management systems, but can be any factor that would have prevented the accident if that factor had not occurred.
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
- https://www.csb.gov/cms/icons/manifest.json
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Cloudflare
- 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
- Let's Encrypt
- Subject
- www.csb.gov
- Valid from
- Jul 21, 2026
- Valid to
- Oct 19, 2026
- Days until expiry
- 55
- SAN domains
- www.csb.gov
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 2 cookie(s) observed
Content & assets
Headings
H1 1 · H2 7 · H3 17
Links
57 internal · 7 external · 0 broken
Images
7 total · 0 missing alt
Scripts / Styles
50 scripts · 22 stylesheets
JS / CSS size
4.7 KB · 531 B
Page size
72.1 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- Missing canonical link
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://csb.gov
- Final URL
- https://www.csb.gov/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 1.47 s
- HTML size
- 72.1 KB
- Redirect chain
- https://csb.gov → https://www.csb.gov/
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Frequently asked questions
- What technology does csb.gov use?
- csb.gov is built with Django, jQuery, Google Analytics, Cloudflare Analytics.
- Is csb.gov secure (HTTPS)?
- Yes. csb.gov uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 19, 2026.
- Who hosts csb.gov?
- Hosting provider information for csb.gov is not available yet.
- What is csb.gov's SEO score?
- csb.gov scored 65/100 for SEO in the latest analysis (fair).
- What is csb.gov's overall website score?
- csb.gov has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card