Important Standards
- Unicode; see &what;
- ISO639-1 alpha-2 Common language codes
- ISO3166-1 alpha-2 Common country codes
- ISO4217 Common currency codes
- ISO8601 Date, time, duration, and recurrence formats
- RFC1945
GET, HEAD, POST, 200 OK, Cache-Control: no-cache, no-store, must-revalidate, Expires: 0
- RFC2017
Content-Type: message/external-body; access-type=URL; URL="http://www.example.com/"
- RFC2046
text/*, image/*, audio/*, video/*, application/*, multipart/*, message/*, */x-*; see media types
- RFC2119 & RFC8174
MUST, MUST NOT, REQUIRED, SHALL, SHALL NOT, SHOULD, SHOULD NOT, RECOMMENDED, MAY, and OPTIONAL
- RFC2397
data:text/plain,Hello • data:image/png;base64,R0lGODlhBAAEAHAAACwAAAAABAAEAIH///8AAAAAAAAAAAACBYQdgXpQADs=
- RFC3986
https://example.com/ • ftp://user@pwd:example.net/ • tel:+1-816-555-1212
- RFC5545
BEGIN:VCALENDAR … END:VCALENDAR
- RFC6238 2FA token: 123456
- RFC6454
Origin: https://example.org/
- RFC6648 deprecating
X- prefix
- RFC6797 HSTS:
Strict-Transport-Security: max-age=16070400; includeSubdomains
- RFC6901 JSON select:
/paths/~1users/get
- RFC7469 HPKP:
Public-Key-Pins: max-age=2592000; pin-sha256="E9CZ9INDbd+2eRQozYqqbQ2yXLVKB9+xcprMF+44U1g="; report-uri="http://example.com/pkp-report"; max-age=10000; includeSubDomains
- RFC7519 JWT:
{"alg": "HS256", "typ": "JWT"} → eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9; see jwt.io
- RFC7617
Authorization: Basic dGVzdDoxMjPCow==
- RFC7764 Markdown guidance; see commonmark.org
- RFC8259 JSON:
{"": true, "key": "value", "zero": 0, "subobject": {"key": "value"}}
- RFC8280 Human rights considerations when developing protocols
- yaml YAML:
YAML: "Document Title"
- jsonref JSON reference:
{"$ref": "https://example.net/value"}
- jsonschema JSON schema
{"type": "string", "maxLength": 255}
- openapi: OpenAPI:
{"openapi": "3.0.3", "info": {"title": "Example API", "version": "1.0"}}
- draft-rep-wg-topic-00 robots.txt; see robotstxt.org
- draft-foudil-securitytxt-11 security.txt; see securitytxt.org
- editorconfig for specifying coding style
NO_COLOR for suppressing color output from terminal apps- Fetch Fetch: URL schemes, redirects, CORS, CSP, referrer, &c
- CORS Cross-origin request sharing
- CSP
Content-Security-Policy: default-src 'self' *.example.org 'unsafe-inline'; report-uri https://example.com/csp-report
- HTML
<!doctype html><title>Page</title><h1>Page</h1>
- CSS
article {display: flex; flex-flow: column;}
- DOM for document manipulation
- ECMA262 ECMAScript