duckdb.org
DuckDB – An in-process SQL OLAP database management system
Last scanned Aug 6, 2026, 7:00 AM · 5 views
Overall score
Great
Summary
DuckDB is an in-process SQL OLAP database management system. This website uses Cloudflare Analytics hosted on Cloudflare behind Cloudflare CDN. SEO is excellent (95/100) and accessibility is excellent (100/100). Security scores fair (70/100) and performance excellent (90/100). Top issue: Multiple H1 headings found.
DuckDB is an in-process SQL OLAP database management system. Simple, feature-rich, fast & open source.
- United States
- Hosted on Cloudflare
Top issues to fix
4 issues found · 2 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 X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
SEO
1 issue(s) found
Performance
125 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
+3 overall since Jul 26, 2026
- Overall
- 89
- SEO
- 95
- Security
- 70
- Performance
- 90
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
DuckDB is an in-process SQL OLAP database management system. Simple, feature-rich, fast & open source.
Contact
Email, phone, and address published on this site's own pages.
Source: https://duckdb.org/quack/
Meta tags
- Title
- DuckDB – An in-process SQL OLAP database management system
- Description
- DuckDB is an in-process SQL OLAP database management system. Simple, feature-rich, fast & open source.
- Canonical
- https://duckdb.org/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0, maximum-scale=1.0
- Robots meta
- Manifest
- https://duckdb.org/images/favicon/site.webmanifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- Cloudflare
- CDN provider
- Cloudflare
- IP address
- 104.26.15.99
- ASN
- AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX |
|
| TXT |
|
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- duckdb.org
- Valid from
- Jun 8, 2026
- Valid to
- Sep 6, 2026
- Days until expiry
- 31
- SAN domains
- duckdb.org
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 2 · H2 4 · H3 8
Links
88 internal · 21 external · 0 broken
Images
3 total · 0 missing alt
Scripts / Styles
10 scripts · 1 stylesheets
JS / CSS size
31.7 KB · 0 B
Page size
404 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 5
- sitemap.xml
- Found
- URLs in sitemap
- 3187
SEO issues
- Multiple H1 headings found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://duckdb.org
- Final URL
- https://duckdb.org
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 117 ms
- HTML size
- 404 KB
- Redirect chain
- https://duckdb.org
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Frequently asked questions
- What technology does duckdb.org use?
- duckdb.org is built with jQuery, Cloudflare Analytics.
- Is duckdb.org secure (HTTPS)?
- Yes. duckdb.org uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 6, 2026.
- Who hosts duckdb.org?
- duckdb.org is hosted on Cloudflare, behind Cloudflare CDN.
- What is duckdb.org's SEO score?
- duckdb.org scored 95/100 for SEO in the latest analysis (excellent).
- What is duckdb.org's overall website score?
- duckdb.org has an overall SiteGraph score of 89/100, combining SEO, performance, security, and accessibility.
- Has duckdb.org's score changed over time?
- duckdb.org's overall score has improved by 3 points (from 86 to 89) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card