Valid
- v=DKIM1; k=rsa; p=BASE64
web validator
DKIM Record Validator
Validate DKIM selector TXT records for v=DKIM1, algorithm, and public key presence.
Results
Processing…- Status
- Processing...
- Details
- Processing...
- Algorithm (k)
- Processing...
- Has public key
- Processing...
How to use this validator
- Paste the DKIM TXT record.
- Run validate to check v=DKIM1, k=, and p= fields.
- If missing p= or v=, add them and re-run.
Rules & checks
Requires v=DKIM1.
Requires p= base64 public key.
k= accepted values include rsa or ed25519; defaults to rsa if omitted.
Runs locally; no data stored.
Inputs explained
DKIM TXT record
Paste the selector TXT value (v=DKIM1; k=...; p=...). Keep keys base64 without spaces. No DNS queries are made.
When to use it
- Validate DKIM selector records before DNS updates
- Support checks on customer DKIM records
- CI/CD sanity checks for DNS templates
Common errors
- Missing p= public key
- Missing v=DKIM1
- Unknown or empty k= value
Limitations
- Structural validation only; does not verify signatures or key strength.
- Does not resolve DNS or test signing/verification.
Tips
- Keep keys base64 without spaces; avoid wrapping
- Ensure selectors are consistent across headers and DNS
Examples
Missing key
- v=DKIM1; k=rsa -> Invalid (no p=)
Deep dive
This DKIM validator checks v=DKIM1, k=, and p= public key presence entirely in your browser without DNS lookups.
Use it to catch missing keys or prefixes before publishing DKIM selector records.
FAQs
- Is this uploaded?
- No. Parsing is local and cleared on refresh.
Related validators
All validation happens in your browser. No data is sent, logged, or stored.
Structural validation only; does not verify signatures or key strength.