How to Troubleshoot and Fix Common DNS Record Issues
DNS Records Troubleshooting Guide: Common Issues and Solutions
Your DNS records may fail to save or work properly for various reasons. Here's a comprehensive guide to resolve common DNS record issues.
Records Not Saving and Basic Fixes
Replace placeholder values in the [Host] and [Data] fields when adding custom records. Gray placeholder text serves as format examples and won't work as actual values. Note that the [Priority] field remains optional.
Host Field Format Guidelines
When adding custom records:
- The domain name automatically appends after the host value
- For "mail.yourdomain.com", only enter "mail" in the [Host] field
- Use "@" in the [Host] field when your domain needs no preceding value
- "Host already in use" means another record uses the same host value
Common Error Messages and Solutions
Invalid IP Address or Hostname:
- Verify correct [Data] field format
- Remove periods at the end of values
- Double-check information accuracy
Conflicting Records:
- Open domain dashboard
- Navigate to DNS settings
- Review existing custom records
- Remove conflicting records
- Add new records
- Allow 24-72 hours for nameserver updates
AAAA Record Tips
Use fully expanded IPv6 addresses:
- Invalid: 2620:12a:8000::3
- Valid: 2620:12a:8000:0:0:0:0:3
TXT and DMARC Record Management
For records exceeding 255 characters:
- Split into shorter strings
- Add each section separately
- Use online DNS record splitting tools if needed
Priority Field Limitations
The [Priority] field is only editable for:
- MX records
- SRV records Other record types will show but not allow priority editing.
When seeking additional support, consult with your service provider for specific DNS configuration requirements.
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