postgresql.org TXT Record Lookup

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What Are postgresql.org's TXT Records?

TXT (Text) records for postgresql.org contain text strings published in DNS. While originally designed for human-readable notes, TXT records are now primarily used for machine-readable data like email authentication policies and domain verification tokens.

postgresql.org's TXT records reveal important information about the domain's email security configuration, which services have verified ownership of postgresql.org, and any other text-based DNS data the domain administrators have published.

Each TXT record can hold up to 255 characters per string, though a single record can contain multiple strings concatenated together. Large records like DKIM keys often use this multi-string format.

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Common TXT Record Types

SPF (Sender Policy Framework) records start with "v=spf1" and specify which servers are authorized to send email on behalf of postgresql.org. These are critical for preventing email spoofing and improving deliverability.

DKIM (DomainKeys Identified Mail) public keys are stored as TXT records under selector subdomains (e.g., selector._domainkey.postgresql.org). DMARC policies are published at _dmarc.postgresql.org and control how receiving servers handle unauthenticated email.

Domain verification records are used by services like Google ("google-site-verification=..."), Microsoft ("MS=..."), Facebook ("facebook-domain-verification=..."), and Apple ("apple-domain-verification=...") to confirm that postgresql.org's owner has authorized the service.

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Understanding postgresql.org's TXT Records

TXT records may appear cryptic at first, but most follow standard formats. Look for known prefixes to identify the type: "v=spf1" for SPF, "v=DMARC1" for DMARC, "v=DKIM1" for DKIM keys, and service-specific verification strings.

If postgresql.org has an SPF record, it defines which IP addresses and services are allowed to send email as postgresql.org. The presence of DMARC and DKIM records indicates stronger email authentication. Verification records confirm that postgresql.org is linked to specific third-party services.

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TXT Record Lookup for postgresql.org

This TXT record lookup tool automatically queries DNS for all TXT records published at postgresql.org. You can also use command-line tools: "dig postgresql.org TXT" on Linux/macOS or "nslookup -type=txt postgresql.org" on Windows.

Note that some TXT records exist on subdomains rather than the root domain. DKIM keys, for example, are at selector._domainkey.postgresql.org. DMARC policies are at _dmarc.postgresql.org. Use the dedicated SPF and DMARC pages for deeper analysis of those specific records.

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Frequently Asked Questions

Does postgresql.org have SPF? — Look for a TXT record starting with "v=spf1" among postgresql.org's TXT records. If present, postgresql.org has SPF configured to control which servers can send email on its behalf.

What TXT records does postgresql.org have? — postgresql.org's TXT records are categorized by type (SPF, DMARC, DKIM, verification, or generic TXT).

What are TXT records used for? — TXT records serve multiple purposes: email authentication (SPF, DKIM, DMARC), domain ownership verification for services like Google and Microsoft, and storing arbitrary configuration data.

How do I add a TXT record to my domain? — TXT records are added through your DNS provider's control panel. Log into your DNS hosting dashboard, add a new TXT record with the required value, and save. Changes typically propagate within minutes to hours.