pnl.gov
Pacific Northwest National Laboratory | PNNL
Last scanned Aug 7, 2026, 6:00 AM · 9 views
Overall score
Great
Summary
PNNL advances the frontiers of knowledge, taking on some of the world’s greatest science and technology challenges. This website uses Drupal. SEO is good (75/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Multiple H1 headings found.
PNNL advances the frontiers of knowledge, taking on some of the world’s greatest science and technology challenges.
Top issues to fix
7 issues found · 2 high priority
TLS certificate expires in 11 days
SecurityRenew now (or enable auto-renewal) — an expired certificate blocks visitors with a full-page browser warning.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
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.
+1 more issue — details in the sections below.
SEO
4 issue(s) found
Performance
928 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-2 overall since Jul 26, 2026
- Overall
- 86
- SEO
- 75
- Security
- 75
- Performance
- 100
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
PNNL advances the frontiers of knowledge, taking on some of the world’s greatest science and technology challenges.
Meta tags
- Title
- Pacific Northwest National Laboratory | PNNL
- Description
- PNNL advances the frontiers of knowledge, taking on some of the world’s greatest science and technology challenges.
- Canonical
- https://www.pnnl.gov/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
- https://www.pnnl.gov/manifest.json
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 1.2
- Issuer
- DigiCert Inc
- Subject
- *.pnnl.gov
- Valid from
- Aug 19, 2025
- Valid to
- Aug 18, 2026
- Days until expiry
- 11
- SAN domains
- *.pnnl.gov, pnnl.gov, externalF5.pnnl.gov
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: none · 1 cookie(s) observed
Content & assets
Headings
H1 3 · H2 10 · H3 8
Links
233 internal · 10 external · 20 broken
Images
8 total · 0 missing alt
Scripts / Styles
37 scripts · 16 stylesheets
JS / CSS size
1.1 KB · 0 B
Page size
85.6 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Multiple H1 headings found
- 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://pnl.gov
- Final URL
- https://www.pnnl.gov
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 927 ms
- HTML size
- 85.6 KB
- Redirect chain
- https://pnl.gov → https://pnnl.gov/ → https://www.pnnl.gov
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does pnl.gov use?
- pnl.gov is built with Drupal, jQuery.
- Is pnl.gov secure (HTTPS)?
- Yes. pnl.gov uses TLS 1.2 with a certificate issued by DigiCert Inc, valid until Aug 18, 2026.
- Who hosts pnl.gov?
- Hosting provider information for pnl.gov is not available yet.
- What is pnl.gov's SEO score?
- pnl.gov scored 75/100 for SEO in the latest analysis (fair).
- What is pnl.gov's overall website score?
- pnl.gov has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.
- Has pnl.gov's score changed over time?
- pnl.gov's overall score has declined by 2 points (from 88 to 86) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card