API Development · page 7

Summarize external script requests, execution cost, and loading behavior.

Review attachment and inline display behavior from response headers.

Inspect response headers returned by a website.

Test cross-origin resource sharing behavior for a specified endpoint.

Record response durations for configured API endpoints.

Check whether a supplied API endpoint responds successfully.

Compare headers returned by multiple endpoints.

Inspect response headers that report API rate limits.

Send sample webhook payloads to an endpoint you control.

Inspect errors and data structures in GraphQL responses.

Produce availability summaries from recorded endpoint checks.

Explain common SMTP server response codes.

Filter exported browser network requests by domain, status, or resource type.

Inspect response headers to identify common CDN caching behavior.

Paste your response headers and get missing security headers flagged with recommended values.

Paste an inline script or style and get its sha256 hash plus a ready script-src directive.

Describe your rendering stack and get a per-request nonce workflow with template and header snippets.

Describe tolerance for stale content and get stale-while-revalidate and stale-if-error windows.

Describe content negotiation dimensions and get a correct Vary value with cache busting caveats.

Describe a resource type and get weak versus strong ETag guidance with generation recipes.

Describe concurrent edits and get If-Match based PATCH flow with 409 and 412 handling.

Describe an outcome scenario and get the right status code with body conventions and traps.

List your endpoints and get safe, idempotent, and cacheable properties per method with notes.

List your content types and get Accept-Encoding guidance across gzip, br, and zstd.