497 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
HTTP 510 Not Extended: what it means (extension required), what a client should do (add extension), the class it belongs to, whether it is retryable and idempotency-safe, the defining RFC, and common causes. Precise one-...
HTTP 511 Network Authentication Required: what it means (captive portal), what a client should do (log in to the network), the class it belongs to, whether it is retryable and idempotency-safe, the defining RFC, and comm...
MIME type for .html files: text/html. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common magic bytes and related extensions. Set headers and validate upl...
MIME type for .htm files: text/html. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common magic bytes and related extensions. Set headers and validate uplo...
MIME type for .css files: text/css. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common magic bytes and related extensions. Set headers and validate uploa...
MIME type for .js files: text/javascript. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common magic bytes and related extensions. Set headers and validate...
MIME type for .mjs files: text/javascript. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common magic bytes and related extensions. Set headers and validat...
MIME type for .json files: application/json. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common magic bytes and related extensions. Set headers and valid...
MIME type for .jsonld files: application/ld+json. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common magic bytes and related extensions. Set headers and...
MIME type for .xml files: application/xml. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common magic bytes and related extensions. Set headers and validat...
MIME type for .txt files: text/plain. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common magic bytes and related extensions. Set headers and validate upl...
MIME type for .csv files: text/csv. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common magic bytes and related extensions. Set headers and validate uploa...
MIME type for .tsv files: text/tab-separated-values. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common magic bytes and related extensions. Set headers a...
MIME type for .md files: text/markdown. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common magic bytes and related extensions. Set headers and validate u...
MIME type for .yaml files: application/yaml. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common magic bytes and related extensions. Set headers and valid...
MIME type for .yml files: application/yaml. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common magic bytes and related extensions. Set headers and valida...
MIME type for .toml files: application/toml. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common magic bytes and related extensions. Set headers and valid...
MIME type for .ics files: text/calendar. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common magic bytes and related extensions. Set headers and validate...
MIME type for .vcf files: text/vcard. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common magic bytes and related extensions. Set headers and validate upl...
MIME type for .rtf files: application/rtf. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common magic bytes and related extensions. Set headers and validat...
MIME type for .pdf files: application/pdf. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common magic bytes and related extensions. Set headers and validat...
MIME type for .doc files: application/msword. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common magic bytes and related extensions. Set headers and vali...
MIME type for .docx files: application/vnd.openxmlformats-officedocument.wordprocessingml.document. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common ma...
MIME type for .xls files: application/vnd.ms-excel. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common magic bytes and related extensions. Set headers an...