Sitemap XML Validator & Extractor
Sitemap XML Validator & Extractor: Parses XML, checks for a sitemap root, extracts loc values, validates absolute HTTP(S) URLs, and reports duplicates. It does not perform XSD validation or fetch URLs.
About this sitemap xml validator & extractor
Sitemap XML Validator & Extractor — browser-based utility.
How this tool works
Parses XML, requires a urlset or sitemapindex root, extracts loc values, checks for absolute HTTP or HTTPS URLs, and reports duplicates. It does not perform XML Schema validation, enforce every sitemap limit, or fetch the listed URLs.
- Credential & Payload Ingestion: Accepts raw request body strings, timestamp headers, and shared signing secrets.
- Canonical String Construction: Assembles the canonical signing payload (e.g. timestamp + '.' + body for Stripe signatures).
- Cryptographic Hash Evaluation: Uses Web Crypto subtle.sign with HMAC-SHA256 to compute the reference digest.
- Constant-Time Verification: Compares computed signature against received header using constant-time byte iteration.
Worked example
Scenario: A webmaster validates an XML sitemap before submitting it to Google Search Console.
Sample input:
Processing: Parses the XML, checks for a urlset or sitemapindex root, extracts loc values, validates absolute HTTP(S) URLs, and reports duplicates without fetching them.
Illustrative output:
Limits and verification
Requires exact raw byte representations of JSON bodies; any whitespace formatting change invalidates cryptographic HMAC signatures. Flags timestamp drift exceeding 5 minutes (300 seconds) to prevent replay attacks.
Examples demonstrate an expected workflow; they do not prove every input or every branch of an external specification. Check important results with an independent source before using them for money, security, compliance, safety, or irreversible file changes.
Browser processing boundary
Tool input is processed by code running in the browser and is not intentionally sent to a CZOA processing API. The page can still request ordinary site assets, analytics, or advertising when those services are enabled. Browser extensions and managed-device software remain outside this tool's control.
Relevant references
These references govern or help explain the format, protocol, or calculation used here. Listing a reference does not claim certification or complete implementation of every optional feature.
- Sitemaps XML Protocol 0.9
- W3C XML 1.0
Content owner: CZOA Tools · Last reviewed: 2026-09-15 · Review methodology
How to use it
- Enter, paste, or select your input data into the Sitemap XML Validator & Extractor workspace controls.
- Review available parameter fields, units, formats, or options configured for your task.
- Click the action button or observe immediate live calculations rendered in your browser runtime.
- Inspect the resulting output and any diagnostic messages, then copy or download the result if needed.
Frequently asked questions
What does Sitemap Validator inspect?+
It parses XML, accepts urlset or sitemapindex, reads direct loc children, checks that every loc is an absolute HTTP or HTTPS URL, and reports root, URLs, count, duplicates, invalid URLs and errors.
What did the sitemap fixture verify?+
Two urlset entries with the same https://example.com/a loc returned count 2, valid true and that URL in duplicates.
Which sitemap rules are absent?+
It does not fetch URLs, validate XML namespaces, lastmod, changefreq, priority, size limits, robots policy, canonical URLs, response codes, gzip or search-engine submission.
Does valid sitemap output prove indexing?+
No. It validates submitted XML fields locally; crawl scheduling, host ownership, accessibility, canonicalization and search indexing remain external.