HTTP Header Checker
Inspect HTTP response headers for a URL.
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SEO & Webmaster
Utilnivo
Compare two web pages by visible content, HTML source, or SEO metadata.
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Secure processing
URL Compare fetches the two addresses you enter on Utilnivo servers, then diffs Visible Content, HTML Source, or SEO metadata. Pasted text and files on other Compare tabs stay in your browser.
Inspect HTTP response headers for a URL.
Compare two JSON documents and instantly see added, removed, and changed values. JSON mode highlights changed keys with path hints.
Compare two XML documents and see tag, attribute, and text line changes.
Compare two pieces of text and instantly see added, removed, and changed lines.
Compare source files such as JavaScript, TypeScript, Java, Python, HTML, CSS, and SQL.
Compare CSV or TSV files, match rows with an optional key column, and highlight changed cells.
Generate a robots.txt file for your site.
Generate a sitemap.xml from a list of URLs.
Enter two page URLs in the shared Compare workspace. URL Compare fetches both pages and diffs Visible Content, HTML Source, or SEO metadata. Those are the implemented modes; screenshot comparison is not included. Fetching runs on Utilnivo servers. Pasted text on other tabs stays in your browser.
URL Compare fetches two pages and diffs the selected extraction. It is meant for webpage and SEO change checks, not for screenshot reviews.
Visible Content compares readable page text. HTML Source compares the fetched markup. SEO metadata compares extracted title, robots, headings, and related metadata fields.
Those three modes are the ones implemented today. The workspace does not add screenshot, visual, or extra SEO crawl modes.
URL fetch uses Utilnivo servers. If you switch to the Text or Files tab, that comparison stays in your browser like the other Compare pages.
Saved report and history URLs are separate from this tool page and are not meant to compete with it in search results.
1. URL Compare opens on the URLs tab. 2. Enter the original URL and the changed URL. 3. Choose Visible Content, HTML Source, or SEO metadata. 4. Click Compare. 5. Review the extracted text in side-by-side or unified view. Fetching runs on Utilnivo servers; pasted text on other tabs stays in your browser.
Example: compare https://example.com/old and https://example.com/new in SEO metadata mode. If the title and robots values changed, those properties show as differences. Visible Content mode diffs readable text instead, and HTML Source mode diffs the fetched markup.
Enter two page URLs and choose Visible Content, HTML Source, or SEO metadata. Utilnivo fetches both pages, extracts the selected view, then diffs the result in the same Compare workspace. Pasted text on other tabs stays in your browser.
Results are based on the inputs you provide and may not cover every edge case. This tool is for general use and is not professional advice.
URL Compare fetches the two addresses you enter on Utilnivo servers, then diffs Visible Content, HTML Source, or SEO metadata. Pasted text and files on other Compare tabs stay in your browser.
FAQ
Visible Content, HTML Source, and SEO metadata. Screenshot and JavaScript-rendered DOM comparison are not implemented.
Utilnivo fetches the two URLs you enter, then diffs the extracted view. Pasted text on other Compare tabs stays in your browser.
Yes. Utilnivo tools are free to use and do not require an account.
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