DKIM Record Checker
Our free DKIM Record Checker helps marketers, developers, and small businesses validate and prepare email data quickly without installing software or creating an account. The tool runs entirely in your browser and on our servers using industry-standard checks, so you get fast, actionable results. Whether you manage newsletters, build SaaS sign-up flows, or troubleshoot deliverability, this utility saves time and reduces costly mistakes. Paste your input, run the check, and use the output immediately in spreadsheets, CRMs, or automation workflows. We designed the interface for clarity: each result is explained in plain language so non-technical users can make confident decisions. Combine this tool with our related email utilities for a complete list-hygiene workflow before every campaign.
How to Use This Tool
- Enter domain and DKIM selector (default: default).
- Click Check DKIM to query selector._domainkey.domain.
- Review raw record, key type, and public key snippet.
- If not found, confirm selector with your ESP.
- Publish DKIM alongside SPF and DMARC.
What This Result Means
Green or positive indicators mean the check passed. Warnings highlight addresses or settings that may cause bounces or spam folder placement. Red or failed checks should be fixed or removed before sending email. Use the breakdown to decide whether to keep, quarantine, or delete each address.
Frequently Asked Questions
Is the DKIM Record Checker free?
Yes. This tool is free to use with no account required for basic checks.
Do you store my data?
We process input to deliver results and do not sell your data. Avoid pasting sensitive information when possible.
How accurate are the results?
Results use standard DNS and format checks. For mission-critical lists, combine multiple tools and periodic re-checks.
Can I use this for bulk lists?
Yes for supported tools. For large CSV files use our bulk CSV verifier or list cleaner.
Related Tools
Example Use Cases
Pre-campaign list hygiene
Run the DKIM Record Checker before sending newsletters to reduce bounces and protect sender reputation.
Sign-up form quality
Developers and marketers use this at registration to block bad addresses early.
Sales prospect research
Sales teams validate contact data before outreach to improve connect rates.