Retry-After
E200851
Retry-After is an HTTP response header that tells clients how long to wait before making another request, typically used with status codes like 429 or 503 to indicate a temporary condition.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Expires (HTTP header) | 1 |
| Retry-After canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1812641 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Retry-After Context triple: [RFC 7231, definesHeaderField, Retry-After]
-
A.
Waiting in Vain
"Waiting in Vain" is a soulful reggae love song by Bob Marley, best known for its themes of unrequited love and its inclusion on the 1977 album *Exodus*.
-
B.
Hold On Longer
"Hold On Longer" is a song by John Legend from his 2013 R&B/soul album *Love in the Future*.
-
C.
Beth/Rest
"Beth/Rest" is a synth-driven, emotionally charged ballad by indie folk band Bon Iver, known for its nostalgic 1980s-inspired sound and closing position on their 2011 self-titled album.
-
D.
Wait a Minute
"Wait a Minute" is an R&B/hip-hop single by American singer Ray J featuring Lil' Kim, known for its catchy hook and early-2000s club sound.
-
E.
Take My Time
"Take My Time" is the 1981 debut studio album by Scottish singer Sheena Easton, featuring pop hits that launched her international career.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Retry-After Target entity description: Retry-After is an HTTP response header that tells clients how long to wait before making another request, typically used with status codes like 429 or 503 to indicate a temporary condition.
-
A.
Waiting in Vain
"Waiting in Vain" is a soulful reggae love song by Bob Marley, best known for its themes of unrequited love and its inclusion on the 1977 album *Exodus*.
-
B.
Hold On Longer
"Hold On Longer" is a song by John Legend from his 2013 R&B/soul album *Love in the Future*.
-
C.
Beth/Rest
"Beth/Rest" is a synth-driven, emotionally charged ballad by indie folk band Bon Iver, known for its nostalgic 1980s-inspired sound and closing position on their 2011 self-titled album.
-
D.
Wait a Minute
"Wait a Minute" is an R&B/hip-hop single by American singer Ray J featuring Lil' Kim, known for its catchy hook and early-2000s club sound.
-
E.
Take My Time
"Take My Time" is the 1981 debut studio album by Scottish singer Sheena Easton, featuring pop hits that launched her international career.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
HTTP header
ⓘ
HTTP response header field ⓘ |
| associatedWithConcept |
exponential backoff
ⓘ
graceful degradation ⓘ idempotent requests ⓘ |
| category | response control header ⓘ |
| definedIn |
RFC 7231
ⓘ
RFC 9110 ⓘ |
| direction | server-to-client ⓘ |
| discourages | immediate retry after a temporary failure ⓘ |
| effectOnClient | encourages reduced request frequency ⓘ |
| errorConditionType | temporary condition ⓘ |
| hasHeaderName | Retry-After ⓘ |
| helpsWith |
implementing polite client behavior
ⓘ
protecting servers from overload ⓘ |
| interpretedBy |
API clients
ⓘ
HTTP clients ⓘ web browsers ⓘ |
| isOptional | true ⓘ |
| mayBeIgnoredByClients | true ⓘ |
| protocol |
HTTP/1.1
ⓘ
HTTP/2 ⓘ HTTP/3 ⓘ |
| relatedHeader |
RateLimit-Reset
ⓘ
RateLimit-Reset-After ⓘ X-RateLimit-Reset ⓘ |
| scope | applies to the request that triggered the response ⓘ |
| semantics | indicates how long the client should wait before making a follow-up request ⓘ |
| semanticsDetail |
for HTTP-date value, client should not retry before the given date and time
ⓘ
for delta-seconds value, client should wait at least that many seconds before retrying ⓘ |
| statusCodeCategory |
commonly used with 4xx responses
ⓘ
commonly used with 5xx responses ⓘ |
| typicalUseCase |
API rate limit exceeded and client must delay further requests
ⓘ
server is overloaded and asks clients to wait before retrying ⓘ service temporarily down for maintenance ⓘ |
| unitForDeltaSeconds | seconds ⓘ |
| usedFor |
backoff signaling
ⓘ
rate limiting ⓘ temporary server unavailability ⓘ |
| usedWithStatusCode |
3xx redirection responses (historical / less common)
ⓘ
429 ⓘ 503 ⓘ |
| valueFormatExample |
120
ⓘ
Wed, 21 Oct 2015 07:28:00 GMT ⓘ |
| valueType |
HTTP-date
ⓘ
delta-seconds ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Retry-After Description of subject: Retry-After is an HTTP response header that tells clients how long to wait before making another request, typically used with status codes like 429 or 503 to indicate a temporary condition.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.