103 Early Hints
1xx Informational. Used to return some response headers before the final HTTP message, letting a browser preload resources.
1xx Informational
What it means
Used to return some response headers before the final HTTP message, letting a browser preload resources.
Common causes
Sent by servers that support HTTP Early Hints to speed up page load by hinting at resources (like CSS or fonts) before the main response is ready.
How to fix it
Informational only — improves performance, no client action required.
Frequently asked questions
What does HTTP 103 mean?
Used to return some response headers before the final HTTP message, letting a browser preload resources.
What causes a 103 Early Hints?
Sent by servers that support HTTP Early Hints to speed up page load by hinting at resources (like CSS or fonts) before the main response is ready.
How do I fix a 103 error?
Informational only — improves performance, no client action required.
Other 1xx Informational codes
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