RSS / Atom Feed Validator
RSS / Atom Feed Validator: Parses RSS 2.0 and Atom XML, checks the supported required feed metadata, and counts items or entries. It does not fetch linked resources or validate every extension and date.
About this rss / atom feed validator
Parses RSS 2.0 and Atom XML, checks the supported required feed metadata, and counts items or entries. It does not fetch linked resources or validate every extension and date Validates and converts interface schemas client-side without transmitting private endpoint specifications.
API contract & interface schema logic
Inspects, analyzes, and converts HTTP/1.1 and HTTP/2 protocol messages, cURL command strings, and Cross-Origin Resource Sharing (CORS) preflight handshakes in accordance with RFC 7230, RFC 7231, RFC 7540, and RFC 9110. Parses cURL command arguments (-H, -X, -d, -F, --cookie) into native API client code across Fetch, Axios, Python Requests, Go net/http, and Node.js. Evaluates HTTP response headers (Cache-Control, Content-Security-Policy, Strict-Transport-Security) for security and caching compliance.
Worked schema conversion scenario
Scenario: A content publisher validates an RSS 2.0 or Atom XML syndication feed.
Sample input:
Processing: Parses RSS 2.0 or Atom XML, checks supported required feed metadata, and counts item or entry elements; extensions and date values are not exhaustively validated.
Illustrative output:
Schema version & syntax constraints
This is a limited local metadata check. It does not fetch feeds, validate all extension namespaces, URLs or item-level content.
API specifications and schema models in RSS / Atom Feed Validator reflect OpenAPI and JSON Schema standards. Verify generated schemas against your runtime validator.
Client-side schema processing boundary
Schema analysis and protocol mapping in RSS / Atom Feed Validator execute locally in the browser tab without uploading endpoint definitions.
OpenAPI Specification & JSON Schema standards
OpenAPI Specification standards and JSON Schema draft definitions:
- RSS 2.0 Specification
- RFC 4287 (The Atom Syndication Format)
RSS / Atom Feed Validator verification · Audit standards
How to use it
- Paste RSS 2.0 or Atom XML.
- Check RSS version 2.0 and its single channel, or the Atom namespace; inspect selected required metadata and count direct items or entries.
- Read valid, title, count and errors in JSON.
Frequently asked questions
Which feed structures does RSS Feed Validator recognize?+
It parses XML locally and accepts an rss root with channel title, link, and description, or an Atom feed root with title, id, and updated; it counts item or entry elements.
Can you show an input and its result?+
A minimal RSS 2.0 channel with CZOA title, link, and description was valid with root rss, title CZOA, zero entries, and no validation errors.
What does a valid result leave unchecked?+
It checks the RSS root has no namespace and the Atom root uses the Atom namespace. It does not fetch the feed, resolve links, or validate publication dates, extension namespaces, media extensions, encoding delivery headers, signing, cache behavior, or aggregator compatibility.
Can malformed XML be reported as a valid feed?+
No. Parser errors are retained in errors, and an unsupported root or missing required channel or Atom fields makes valid false.