Retry-After
HTTP response headerThe 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 | 283,999 |
| Percentage of websites that use Retry-After header | 0.29% |
| Total discovered header values | 2,313 |
| 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 | 383 websites |
| Top 100k sites | 2,136 websites |
| Top 1m sites | 9,327 websites |
Websites utilizing Retry-After
List of websites that use Retry-After header| Domain | Country | Rank | Contacts |
|---|---|---|---|
|
|
United States of America
|
32 | |
|
|
United States of America
|
39 | |
|
|
United States of America
|
51 | |
|
|
United States of America
|
65 | |
|
|
United States of America
|
77 | |
|
|
United States of America
|
159 |
Flat price per the report, subscription is not required.
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 | 43.64% |
| 3600 | 25.15% |
| 86400 | 18.61% |
| 600 | 4.27% |
| 5 | 3.06% |
| 300 | 0.91% |
| 604800 | 0.45% |
| 60 | 0.33% |
| 1800 | 0.28% |
| 14400 | 0.28% |
| 333 env=RATELIMITED | 0.24% |
| 120 | 0.19% |
| 30 | 0.14% |
| 5400 | 0.14% |
| 900 | 0.13% |
| 172800 | 0.13% |
| 7200 | 0.11% |
| 1440 | 0.11% |
| 10 | 0.11% |
| 20 | 0.08% |