Retry-After

HTTP response header

The Retry-After response HTTP header indicates how long the user agent should wait before making a follow-up request. There are three main cases this header is used: When sent with a 503 (Service Unavailable) response this indicates how long the service is expected to be unavailable.

Header usage statistics

Retry-After response header information and usage statistics.

Websites using header Retry-After 27,769
Percentage of websites that use Retry-After header 0.24%
Total discovered header values 237
Header uses directives No
Header values are unique or random No
Most popular in the country United States of America

Distribution by websites popularity

Retry-After detection in the top websites by popularity

Top 10k sites 224 websites
Top 100k sites 815 websites
Top 1m sites 4,463 websites

Websites utilizing Retry-After

List of websites that use Retry-After header

Domain Country Rank Contacts
pinterest.com United States of America 13
reddit.com United States of America 35
i.imgur.com United States of America 41
forbes.com United States of America 42
nytimes.com United States of America 47
theguardian.com United States of America 52
See full domain list

Geographical Distribution

Header usage distribution by websites across the globe.






Common header values

List of top common Retry-After header values

Header value Value prevalence
0 59.93%
3600 16.06%
86400 12.45%
5 4.90%
600 1.92%
300 0.66%
5400 0.60%
604800 0.47%
60 0.41%
14400 0.27%
1800 0.21%
36000 0.13%
10 0.12%
7200 0.12%
30 0.11%
172800 0.09%
120 0.09%
900 0.09%
18000 0.08%
20 0.08%