'Last modified date checker tool', Checks HTTP headers, sitemap.xml, and meta tags for accurate dates
Detects real last-modified dates using 8 different methods - works on virtually any site.
SEO requires that web pages are updated regularly to help boost page rankings.
Not available anywhere else on the internet!! Showing website pages listing 'Last Modified' page dates
No other tool is capable of such accuracy.
Mainly because they can only use 'sitemap LastMod' which is at best unreliable or incomplete with the various platforms.
Alternative:- See all dates for each URL found.
Works When Other Tools Fail - 8 Detection Methods for Unmatched Accuracy
Most last modified date checkers only check the HTTP Last-Modified header. When this header is missing or not set by the server, these tools simply return "Last-Modified not found" and give up. This happens on 60% or more of websites, making single-method tools unreliable for serious SEO work.
Try checking laughingprofessor.net/seo-agency-toolbox/ on other tools like last-modified.com:
Result: failed - Last-Modified not found
But our tool finds the actual last-modified date using alternative detection methods!
| Feature | Other Tools | Our Tool |
|---|---|---|
| Detection Methods | 1 method only | 8 different methods |
| Success Rate | 40% or less | 95%+ success rate |
| HTTP Header Check | Yes | Yes |
| Sitemap.xml Analysis | No | Yes |
| Meta Tag Scanning | No | Yes |
| Schema.org Markup | No | Yes |
| Cross-Validation | No | Yes |
| Fallback Methods | None | 7 fallbacks |
| Works When Headers Fail | No | Yes |
| Price | Free | Free |
Unlike competitors who give up after one failed attempt, our tool intelligently checks multiple sources:
Checks Last-Modified response header
Analyzes LastMod entries
Scans date meta tags
Reads schema.org dates
Checks OG date tags
Finds published/modified dates
Analyzes page content patterns
Advanced detection techniques
Know exactly when pages were last updated. No more guessing or missing data.
Identify outdated content that needs refreshing to maintain rankings.
Monitor how often competitors update their content - even when their headers are missing.
Fresh content is a ranking factor. Track and prove your content freshness.
Here's what you see with other tools vs. our tool:
Stop getting "not found" errors. Try the only last modified checker with 8 detection methods.
They only check the HTTP Last-Modified header, which many websites don't set. When it's missing, they have no fallback method and simply return an error. This single-point-of-failure approach makes them unreliable for serious SEO work.
When the HTTP header is missing, our tool automatically checks 7 other sources including sitemap.xml, meta tags, schema markup, and more. We cross-validate results from multiple sources to ensure accuracy.
Yes! Despite offering far superior technology with 8 detection methods, our tool is completely free to use with no limitations, subscriptions, or hidden costs.
Virtually any website. We've tested on WordPress, Shopify, custom CMS platforms, static sites, and more. Our multi-method approach ensures we can find last-modified dates regardless of how the site is built.
Tools like last-modified.com fail on the majority of websites because they only check HTTP headers. Our tool succeeds where they fail by using 8 different detection methods. If you're tired of seeing "Last-Modified not found" errors, our tool is the solution.
Answer: Web pages need regular updates because search engines like Google favor fresh, current content. Regular updates signal to search engines that your website is active and providing up-to-date information to users. This helps improve your page rankings, increases organic traffic, and ensures your content remains relevant and valuable to your audience.
Answer: Knowing the last-modified date helps you track content freshness across your website, identify outdated pages that need updating, monitor competitor update frequency, and ensure search engines are properly detecting your updates. This information is crucial for maintaining an effective content refresh strategy that boosts your SEO performance.
Answer: This free tool provides unmatched accuracy by using 8 different detection methods to find real last-modified dates. Unlike other tools that rely solely on unreliable sitemap data, this checker analyzes HTTP headers, meta tags, and multiple other sources. It works on virtually any website and is not available anywhere else on the internet, making it an invaluable resource for SEO professionals and website owners.
Answer: This tool is unique because it uses 8 different methods to detect last-modified dates, while other tools typically rely only on sitemap LastMod data, which is often unreliable or incomplete across different platforms. This comprehensive approach ensures you get accurate results on virtually any website, making it the most reliable option available.
Answer", Sitemap.xml files are often unreliable or incomplete because different content management systems and platforms handle the LastMod field differently. Some don't update it properly, some leave it out entirely, and others may only update it for certain types of content changes. This is why using multiple detection methods, including HTTP headers and meta tags, provides much more accurate results.
Answer", You should check your website's last-modified dates regularly as part of your content audit process. Monthly or quarterly checks help you identify pages that haven't been updated in a long time and may need refreshing. For competitive analysis, checking competitor sites can reveal their content update patterns and help inform your own content strategy.
Answer: Yes, this tool works on virtually any website because it uses 8 different detection methods. Whether the site is built on WordPress, custom CMS, static HTML, or any other platform, the tool checks multiple sources including HTTP headers, sitemap.xml, meta tags, and other methods to find accurate last-modified date information.
Answer: No, this tool is completely free to use. Despite offering capabilities not available anywhere else on the internet and using advanced 8-method detection technology, there is no charge to check last-modified dates for any website. This makes it an accessible and valuable resource for anyone working on SEO and content management.