What technology does postgresql.org use?

postgresql.org is built with Nginx.

Is postgresql.org secure (HTTPS)?

Yes. postgresql.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 1, 2026.

Who hosts postgresql.org?

Hosting provider information for postgresql.org is not available yet.

What is postgresql.org's SEO score?

postgresql.org scored 75/100 for SEO in the latest analysis (fair).

What is postgresql.org's overall website score?

postgresql.org has an overall SiteGraph score of 91/100, combining SEO, performance, security, and accessibility.

Has postgresql.org's score changed over time?

postgresql.org's overall score has declined by 3 points (from 94 to 91) since Jul 18, 2026.

postgresql.org

PostgreSQL: The world's most advanced open source database

Last scanned Jul 29, 2026, 12:00 PM · 11 views

Overall score

Excellent

Summary

The official site for PostgreSQL, the world's most advanced open source database. This website uses Nginx behind Fastly CDN. SEO is good (75/100) and accessibility is excellent (100/100). Security scores excellent (95/100) and performance excellent (100/100). Top issue: Missing canonical link.

The official site for PostgreSQL, the world's most advanced open source database

Top issues to fix

6 issues found

Missing X-Content-Type-Options header
Security
Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing canonical link
SEO
Add <link rel="canonical"> so search engines know which URL variant to index.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.
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.
20 broken links on the page
SEO
Fix or remove broken links — they waste crawl budget and erode user trust.

SEO

4 issue(s) found

100

Performance

313 ms

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

-3 overall since Jul 18, 2026

Overall: 91
SEO: 75
Security: 95
Performance: 100
Accessibility: 100

Organization

Company details published in this site's own structured data.

The official site for PostgreSQL, the world's most advanced open source database

Meta tags

Title: PostgreSQL: The world's most advanced open source database
Description: The official site for PostgreSQL, the world's most advanced open source database
Canonical
Language: en
Charset: utf-8
Viewport: width=device-width, initial-scale=1, shrink-to-fit=no
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

Nginx

Hosting & CDN

Hosting provider: —
CDN provider: Fastly
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.postgresql.org
Valid from: Jun 3, 2026
Valid to: Sep 1, 2026
Days until expiry: 33
SAN domains: archives.postgresql.org, postgresql.org, stackbuilder.postgresql.org, www.postgresql.org, zetar.postgresql.org

Security headers

Strict-Transport-SecurityEnabled
Content-Security-PolicyEnabled
X-Frame-OptionsEnabled
X-Content-Type-OptionsMissing
Referrer-PolicyMissing
Permissions-PolicyMissing

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 8 · H3 15

Links

44 internal · 12 external · 20 broken

Images

10 total · 0 missing alt

Scripts / Styles

2 scripts · 3 stylesheets

JS / CSS size

0 B · 0 B

Page size

24.3 KB

Robots.txt & Sitemap

robots.txt: Not found
Disallow rules: 0
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

Missing canonical link
No structured data (JSON-LD) found
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://postgresql.org
Final URL: https://www.postgresql.org/
HTTP status: 200
HTTP version: HTTP/2
Response time: 313 ms
HTML size: 24.3 KB
Redirect chain: https://postgresql.org → https://www.postgresql.org/

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Frequently asked questions

What technology does postgresql.org use?: postgresql.org is built with Nginx.
Is postgresql.org secure (HTTPS)?: Yes. postgresql.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 1, 2026.
Who hosts postgresql.org?: Hosting provider information for postgresql.org is not available yet.
What is postgresql.org's SEO score?: postgresql.org scored 75/100 for SEO in the latest analysis (fair).
What is postgresql.org's overall website score?: postgresql.org has an overall SiteGraph score of 91/100, combining SEO, performance, security, and accessibility.
Has postgresql.org's score changed over time?: postgresql.org's overall score has declined by 3 points (from 94 to 91) since Jul 18, 2026.

Top issues to fix

Score history

Organization

Meta tags

OpenGraph & Twitter Card

Technologies

Hosting & CDN

DNS records

TLS / SSL certificate

Security headers

Content & assets

Robots.txt & Sitemap

SEO issues

Accessibility issues

Scan details

Related websites

Frequently asked questions