IETF · RFC · RFC9163
RFC9163 · Expect-CT Extension for HTTP Expect-CT Extension for HTTP
This document defines a new HTTP header field named "Expect-CT", which allows web host operators to instruct user agents (UAs) to expect valid Signed Certificate Timestamps (SCTs) to be served on connections to these hosts. Expect-CT allows web host operators to discover misconfigurations in their Certificate Transparency (CT) deployments. Further, web host operators can use Expect-CT to ensure that if a UA that supports Expect-CT accepts a misissued certificate, that certificate will be discoverable in Certificate Transparency logs.
IETF · RFC
Официальная английская аннотация This document defines a new HTTP header field named "Expect-CT", which allows web host operators to instruct user agents (UAs) to expect valid Signed Certificate Timestamps (SCTs) to be served on connections to these hosts. Expect-CT allows web host operators to discover misconfigurations in their Certificate Transparency (CT) deployments. Further, web host operators can use Expect-CT to ensure that if a UA that supports Expect-CT accepts a misissued certificate, that certificate will be discoverable in Certificate Transparency logs.
Связи документа
Официальный источник · 2022-06-01
Проверка просрочена
Экспериментальный
Статус: 16.10.2026, 10:21 МСК
Срок следующей проверки: 17.10.2026, 10:21 МСК
Полный текст не зарегистрирован для автоматической сверки.
Errata: нет записей в успешно полученной базе
История и основания проверки
16.10.2026, 10:21 МСК · rfc-index · changed · HTTP 2004c599b64f95deebb9295a603747e28c7b172b15516b4d7140d35b3c5fec97311
16.10.2026, 10:21 МСК · rfc-errata · changed · HTTP 200e208d511c7450a0c65b6a6cfa47471ac873f0c81442bcb911eaac5a2097a8609
10.10.2026, 18:39 МСК · rfc-index · adapter_changed · HTTP 200d413c804505ea10e4abfabc529e82cbfd950616d85fd71658122beeabf74c73b
10.10.2026, 18:39 МСК · rfc-errata · adapter_changed · HTTP 2009fd444088360c9a55b9d1543eb948d627c9e30ac3d9d9cdc222e5883be7e59ee
10.10.2026, 18:36 МСК · rfc-index · unchanged · HTTP 304d413c804505ea10e4abfabc529e82cbfd950616d85fd71658122beeabf74c73b
10.10.2026, 18:36 МСК · rfc-errata · baseline · HTTP 2009fd444088360c9a55b9d1543eb948d627c9e30ac3d9d9cdc222e5883be7e59ee
10.10.2026, 18:34 МСК · rfc-index · changed · HTTP 200d413c804505ea10e4abfabc529e82cbfd950616d85fd71658122beeabf74c73b
10.10.2026, 18:34 МСК · rfc-errata · error · HTTP 200Empty response or forbidden XML entities
rfc-errata · официальный источник
rfc-index · официальный источник
Полные импортированные сведения карточки {
"id": "RFC9163",
"number": 9163,
"title_en": "Expect-CT Extension for HTTP",
"title_ru": "",
"summary_ru": "",
"purpose_ru": "",
"use_ru": "",
"full_translation_path": "",
"full_translation_checked_at": "",
"full_translation_source_sha256": "",
"architect_note_ru": "",
"topics_ru": [],
"translation_state": "not_prepared",
"verification_level": "not_prepared",
"verification_level_ru": "Русская выжимка не подготовлена",
"verification_note_ru": "",
"abstract_en": "This document defines a new HTTP header field named \"Expect-CT\", which allows web host operators to instruct user agents (UAs) to expect valid Signed Certificate Timestamps (SCTs) to be served on connections to these hosts. Expect-CT allows web host operators to discover misconfigurations in their Certificate Transparency (CT) deployments. Further, web host operators can use Expect-CT to ensure that if a UA that supports Expect-CT accepts a misissued certificate, that certificate will be discoverable in Certificate Transparency logs.",
"authors": [
"E. Stark"
],
"organizations": [],
"publication_date": "2022-06-01",
"current_status": "EXPERIMENTAL",
"current_status_ru": "Экспериментальный",
"publication_status": "EXPERIMENTAL",
"publication_status_ru": "Экспериментальный",
"lifecycle": "experimental",
"lifecycle_ru": "Экспериментальный",
"stream": "IETF",
"stream_ru": "IETF",
"area": "wit",
"area_ru": "Веб и транспорт Интернета",
"working_group": "httpbis",
"source_draft": "draft-ietf-httpbis-expect-ct-08",
"page_count": 18,
"doi": "10.17487/RFC9163",
"keywords": [
"Certificate Transparency",
"Expect-CT"
],
"formats": [
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],
"relations": {
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},
"links": {
"info": "https://www.rfc-editor.org/info/rfc9163/",
"html": "https://www.rfc-editor.org/rfc/rfc9163.html",
"txt": "https://www.rfc-editor.org/rfc/rfc9163.txt",
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}