DKIM Record Checker
DKIM signs outgoing emails. Receivers verify the signature using a public key in DNS.
DKIM lives on <selector>._domainkey.<domain>. If selector is empty, we try common ones.
Result for avg.com
Found
Selector: default
(TXT on default._domainkey.avg.com)
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDGN6RTzmaz8UDYFRiD/OVIIfnMIDG+x1rb47N6RBlBa2ns01mMGJRYKh6L0qytGyhawSYIqkZNTRI4cB8rp+mNNhT/mvwDTLqqUXaqy9L7MGslOCF9jkmw6l3AAnmHYoMjp26bkXqAlMEflzWuF6h3RDfv6WLnnh/TTWG2CmkXzwIDAQAB
Selector: selector1
(TXT on selector1._domainkey.avg.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1PKZ3p1YA/OfpjSYJnVjfBE926QMVjeqsrexERQQEvYWpUTPnariZdl1I3LdVs6+FLMvElXUL8w69+C3wLzVBYwyT7OYjvnCfhUutsFmqjmIHSc5dDcBwMBDwkrQP7/e5xOH4UXWZbPiSS5QU8UrDj4KhKTVRUFoxCO888Hz9vHZPgjVHpfNc52/NhESt73cmF9fpkZYqxNPtJbViHIBvGEbkWQ7mp0kfVj/mRu7H1SCXe6mLHJW8cWSXI7lfekPfDVDEwVjIoBfNbY8B6udeN3J7Mr4EiYvYyp/1u6VYj+R3HwGIYQtmVk7QZ+BgmRguDDN0MJ8MuQ+WFeOW/gqZQIDAQAB;
Selector: selector2
(TXT on selector2._domainkey.avg.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzuaVAqrUirIY9eRSJdXjyw0WvzqKct7pIf38ZE09VhFQISl148HiRj5SklTGnVORecW6qpCCYo+bmtePNltb66swGkXVDYBKhFj9lS9LWUj57AhCZId+GIKS7RWRKh/c7WD7fK8uOlZssQULVnCMXc4rrvlW/0hF4lQx06rP4l53ySu/XDQ1VoUnQt9+XYhEc6akw3J3gMfvxV+FTN8iQT6TxEyMGvAAVPqu6qT93DqI73vNSRKyuVDIa4W6ZhnSr6Wk4Q9rnYih9KsMK16hA15EljjzlXfQ/tHXRtc9PeCAr3oSIDx0B96JFelrTmRNeyy0Ynuc2TAFNus5etK1mQIDAQAB;
Selector: google
(TXT on google._domainkey.avg.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnEgn4LPyb54i3KrpBK9Hpi+QArWXD0eh9+ki+yNASYwk7659QVxD/p9BffK06onTJnV2Ye2sIzd88HJyztsu46vdWQP0KuHNXfEK3qidSSwPKmYjrQW3dY5vjNT0+r6MlynD6eJVi/+UPqJ1wN4DgBhpwPCl4j7X7HDrg2V65XCZq/KQor5sa6WPC/qNU3yT4d11zOq24+pPSgiPUSKILM/aoJ2twgTEW+HjiPy6hoL4DYUCMbKintJ4NCWgLpdE6mlSNJkEvgquBHcQHMn4YNC5FDcDehB9yLavg6g6Z5P3dZcQVVCVrwrxcKHrcqrXAYUSNRHycnj9MZanRnWvewIDAQAB
FAQ
Why does DKIM require a selector?
Selectors allow rotating keys and running multiple keys per domain.
Where is DKIM published?
TXT on <selector>._domainkey.<domain>.
DKIM record exists but emails still fail DKIM?
Signing may be disabled or the selector used in email differs from DNS.
Do I need DKIM if I have SPF?
Yes, many providers use both for best deliverability and DMARC alignment.
Can I have multiple DKIM selectors?
Yes, that is common for key rotation or multiple senders.
What is DKIM?
DKIM (DomainKeys Identified Mail) adds a cryptographic signature to outgoing emails. DNS stores a public key that allows receivers to verify authenticity.
Example
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0B...
Common mistakes
- Wrong selector (the record exists but under a different selector).
- Key is split incorrectly across multiple TXT chunks (some DNS UIs break it).
- Publishing DKIM but not enabling signing on the mail provider.