Quick answer
If you use priority, it must be a number between 0.0 and 1.0.
Sitemap priority Range
If you use priority, it must be a number between 0.0 and 1.0. Outside range is invalid.
Common causes
- priority 2 or -1.
- Non-numeric.
How to fix
- Use 0.0–1.0 or remove priority.
FAQ
- Valid priority?
- 0.0 to 1.0.
- Useful?
- Most engines ignore.
Fix it now
Try in validator (prefill this example)