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duckdb.org

DuckDB – An in-process SQL OLAP database management system

Last scanned Jul 26, 2026, 9:46 AM

86

Overall score

Great

Summary

DuckDB is an in-process SQL OLAP database management system. This website uses Cloudflare Analytics behind Cloudflare CDN. SEO is good (85/100) 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.

Top issues to fix

7 issues found · 2 high priority

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • Multiple H1 headings found

    SEO

    Keep a single H1 per page and demote the others to H2/H3.

  • robots.txt not found

    SEO

    Publish /robots.txt with a Sitemap: directive to guide crawlers.

  • sitemap.xml not found

    SEO

    Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

+1 more issue — details in the sections below.

85

SEO

3 issue(s) found

90

Performance

185 ms

70

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

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.

LinkedInX (Twitter)

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

OpenGraph & Twitter Card

OpenGraph

og:title
An in-process SQL OLAP database management system
og:description
DuckDB is an in-process SQL OLAP database management system. Simple, feature-rich, fast & open source.
og:type
website
og:url
https://duckdb.org/

Twitter Card

twitter:card
summary
twitter:title
An in-process SQL OLAP database management system
twitter:description
DuckDB is an in-process SQL OLAP database management system. Simple, feature-rich, fast & open source.

Technologies

Detected frameworks, languages, and tools.

jQueryCloudflare Analytics

Hosting & CDN

Hosting provider
—
CDN provider
Cloudflare
IP address
—
ASN
—

DNS records

TypeValue
A—
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

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
40
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 · 20 broken

Images

3 total · 0 missing alt

Scripts / Styles

10 scripts · 1 stylesheets

JS / CSS size

847 B · 0 B

Page size

403 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
  • robots.txt not found
  • sitemap.xml not 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
177 ms
HTML size
403 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?
Hosting provider information for duckdb.org is not available yet.
What is duckdb.org's SEO score?
duckdb.org scored 85/100 for SEO in the latest analysis (great).
What is duckdb.org's overall website score?
duckdb.org has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.