ℹ️ What This Tool Does:

• Automatically detects if you have a 2048-bit or 4096-bit DKIM key
• Splits 2048-bit keys into 2 parts for DNS TXT records
• Splits 4096-bit keys into 4 parts for DNS TXT records
• Formats each part correctly with quotation marks for DNS records
• Shows you exactly how to set up the DNS host records

Perfect for when your DKIM key is too long for a single DNS TXT record!

Written by Jonas Lund © 2024

🔒 Security Information:

• This tool runs entirely in your browser - no data is ever sent to any server
• All key splitting is done locally in your browser using JavaScript
• For maximum security, you can download this page and run it offline:

For 2048-bit key (2 parts):
Host: selector._domainkey.example.com
Value: "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOC..."

Host: selector._domainkey2.example.com
Value: "AQ8AMIIBCgKCAQEA23456789..."

For 4096-bit key (4 parts):
Host: selector._domainkey.example.com
Value: "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0..."

Host: selector._domainkey2.example.com
Value: "BAQEFAAOCAQ8AMIIBCgKCAQEA..."

Host: selector._domainkey3.example.com
Value: "23456789ABCDEFGHIJKLMNOP..."

Host: selector._domainkey4.example.com
Value: "QRSTUVWXYZ0123456789..."

Note: Replace 'selector' with your DKIM selector (e.g., google, default, mail) and 'example.com' with your domain