TXT Kaydı
Embed This Widget
Add the script tag and a data attribute to embed this widget.
Embed via iframe for maximum compatibility.
<iframe src="https://ipfyi.com/iframe/glossary/txt-record/" width="420" height="400" frameborder="0" style="border:0;border-radius:10px;max-width:100%" loading="lazy"></iframe>Paste this URL in WordPress, Medium, or any oEmbed-compatible platform.
https://ipfyi.com/glossary/txt-record/Add a dynamic SVG badge to your README or docs.
[](https://ipfyi.com/glossary/txt-record/)Use the native HTML custom element.
Tanım
Rastgele metin verileri tutan DNS kaydı. Yaygın olarak e-posta kimlik doğrulaması (SPF, DKIM, DMARC), alan adı sahipliği doğrulaması ve diğer makine tarafından okunabilir meta veriler için kullanılır.
What TXT Records Are Used For
TXT records were originally designed to hold human-readable notes about a domain. Today they serve a very different purpose: machine-readable verification and policy data. Three of the most important uses are SPF, DKIM, and domain ownership verification for services like Google Search Console or certificate authorities.
An SPF record declares which mail servers are authorized to send email on behalf of your domain. A DKIM record publishes the public key used to verify email signatures. DMARC policy records also live in TXT records, instructing receiving mail servers what to do with messages that fail SPF or DKIM checks.
Format and Limitations
A single TXT record string is limited to 255 characters, but multiple strings within one record are concatenated by resolvers. This allows longer values, such as verbose SPF policies covering many authorized senders.
Verification and Debugging
When email deliverability problems arise, TXT records are the first place to check. Use DNS Lookup to inspect SPF, DKIM, and DMARC entries for a domain. Misconfigured TXT records are a leading cause of legitimate email landing in spam folders.
TXT records interact closely with MX RecordMail Exchange record. A DNS record that specifies the mail server responsible for receiving email for a domain, along with a priority value that determines the order in which servers are tried. records — the MX record routes incoming mail, while TXT records govern how that mail is authenticated at the destination server. They also work alongside SOA RecordStart of Authority record. A DNS record that contains administrative information about a zone, including the primary name server, responsible party's email, serial number, and refresh/retry/expire timers. to form the complete administrative picture of a DNS zone.