Links
Valid href values
All href values are syntactically valid URLs
What we check
All href values are syntactically valid URLs
Why it matters
Malformed hrefs are dead ends nobody notices.
How to fix it
Correct hrefs that are empty, malformed, or left as placeholders.
How it affects your score
This check sits in Links, which is worth 10% of the overall score. A critical result costs the full weight of the check; a warning costs half. If we can't measure it on your page, we leave it out of the score entirely.