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Categories: Development

Tags: Open Source

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

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Updated: 2026-09-03 17:26 Language: English (default) Access: Normal

Profile views 5 Outbound visits 5
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Website Overview

An established domain and managed infrastructure suggest continuity of operations and may support dependable delivery, although neither guarantees service quality.

Domain and Registration

Registered in 1996, this domain has about 29 years of history. That suggests continuity, although ownership and purpose may have changed. Transfer-protection status is present, helping reduce the risk of unauthorized domain transfers. The registrar is Gandi SAS, a widely used domain service provider. The domain uses the common .org extension, which is not an independent safety signal.

DNS and Email

Nameservers are provided by postgresql.org, indicating managed DNS hosting. MX records point to the postgresql.org email service. DNSSEC is enabled, allowing validating resolvers to authenticate signed DNS data. CAA records restrict which certificate authorities are authorized to issue certificates. No CNAME was found; the observed records resolve directly to addresses.

TLS and Certificates

The certificate uses an RSA 4096-bit public key, offering broad client compatibility. The server supplied a complete certificate chain. No organization name is present in the certificate; the available fields are consistent with domain validation. The certificate was issued by Let's Encrypt, commonly associated with automated certificate services. The certificate's total validity is about 89 days, consistent with a short renewal cycle.

HTTP and Browser Security

The response lacks these common security headers: X-Content-Type-Options, Referrer-Policy, Permissions-Policy. No X-Powered-By header was found, reducing one common source of backend fingerprinting information. The via response header indicates a CDN or caching proxy in the delivery path. No obvious internal addresses or debug information were found in the headers. The Server header identifies nginx without an exact version.

Technology Stack Analysis

The public page identifies nginx without precise versions, leaving fewer clues for version-specific scanning.

Search and Social Sharing

No homepage canonical URL was detected. If duplicate URLs exist, consolidation may be less explicit. The title has 58 characters, within a common display range. A meta description is present, with 80 characters. The observed directives allow indexing and link following. No Generator meta tag is publicly exposed.

Hosting and Email

DNSpostgresql.org
Hostingconova communications GmbH
Emailpostgresql.org
Location Austria flagSeekirchen am Wallersee, State of Salzburg, Austria 217.196.149.50

Pages, Search and Sharing

Meta descriptionThe official site for PostgreSQL, the world's most advanced open source database
Canonical URLNot detected
LanguageEnglish (default)
Twitter CardNot detected

Social Sharing Preview

5 fields

robots.txt (opens in a new tab)

9 rules
All bots 0 allowed · 9 disallowed
  • Disallow/admin/
  • Disallow/account/
  • Disallow/docs/devel/
  • Disallow/list/
  • Disallow/search/
  • Disallow/message-id/raw/
  • Disallow/message-id/flat/
  • Disallow/message-id/resend/
  • Disallow/message-id/mbox/

Sitemaps

1

Registration details RDAP / WHOIS

RegistrarGandi SAS
Registered1996-10-22
Expires2029-10-21
Domain statusclient transfer prohibited
Nameserversns1.postgresql.org、ns2.postgresql.org、ns3.postgresql.org、ns4.postgresql.org
DNSSECsigned

DNS records

TypeNameValueTTLPriority
Apostgresql.org217.196.149.501800—
AAAApostgresql.org2a02:16a8:dc51::501800—
MXpostgresql.orgmagus.postgresql.org180010
MXpostgresql.orgmakus.postgresql.org180010
NSpostgresql.orgns1.postgresql.org1800—
NSpostgresql.orgns2.postgresql.org1800—
NSpostgresql.orgns3.postgresql.org1800—
NSpostgresql.orgns4.postgresql.org1800—
TXTpostgresql.orggoogle-site-verification=aJB1lOnlG5TA0HgpZU-iKIQD6qPMWqUnkzanzern8eU1800—
TXTpostgresql.orglibera-BVY4G2rs94vmQBA94rNesqCh1800—
TXTpostgresql.orgv=spf1 include:_spf.postgresql.org ~all1800—
CAApostgresql.org0 iodef "mailto:[email protected]"1800—
CAApostgresql.org0 issue "amazontrust.com"1800—
CAApostgresql.org0 issue "letsencrypt.org"1800—
DSpostgresql.org45514 8 2 f6df1c65a07836a2f99c3b91809b46037e8827086ff11d8f903da56097f830d03600—
DMARC_dmarc.postgresql.orgv=DMARC1; p=none; ruf=mailto:[email protected]; fo=1; adkim=r; aspf=r; rf=afrf; ri=864001200—

TLS and certificates

AssessmentNormal configuration
Supported protocolsTLSv1.2、TLSv1.3
Negotiated protocolTLSv1.3
Certificate subjectwww.postgresql.org
IssuerLet's Encrypt
Valid until2026-10-31T00:09 · Remaining when checked: 57 days
Verification detailsCertificate trust: Passed · Hostname match: Passed

HTTP response headers

HeaderValue
content-typetext/html; charset=utf-8
servernginx
strict-transport-securitymax-age=31536000
content-security-policydefault-src 'self' ; img-src * data: ; script-src 'unsafe-eval' 'self' www.google-analytics.com ssl.google-analytics.com www.googletagmanager.com tagmanager.google.com data: ; connect-src 'self' www.google-analytics.com ssl.google-analytics.com ; media-src 'self' ; style-src 'self' fonts.googleapis.com tagmanager.google.com ; font-src 'self' fonts.gstatic.com data: ; frame-ancestors 'none' ; report-uri https://csp-report.postgresql.org/
x-frame-optionsDENY

Identified technologies

nginx

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