Caching of fragments in memory or on disk.Caching of objects in memory or on disk.Caching of database objects in memory or on disk.URIs with query string variables) in memory or on disk Caching of feeds (site, categories, tags, comments, search results) in memory or on disk or on CDN.Caching of (minified and compressed) CSS and JavaScript in memory, on disk or on CDN.Caching of (minified and compressed) pages and posts in memory or on disk or on (FSD) CDN (by user agent group).Mobile support: respective caching of pages by referrer or groups of user agents including theme switching for groups of referrers or user agents.Transparent content delivery network (CDN) management with Media Library, theme files and WordPress itself.Compatible with shared hosting, virtual private / dedicated servers and dedicated servers / clusters.Up to 80% bandwidth savings when you minify HTML, minify CSS and minify JS files.Improved web server performance sustain high traffic periods.Reduced page load time: increased visitor time on site visitors view more pages.Optimized progressive render: pages start rendering quickly and can be interacted with more quickly.“Instant” repeat page views: browser caching.Improved conversion rates and “ site performance” which affect your site’s rank on.At least 10x improvement in overall site performance (Grade A in WebPagetest or significant Google PageSpeed improvements) when fully configured.Improvements in search engine result page rankings, especially for mobile-friendly websites and sites that use SSL.It is the total performance solution for optimizing WordPress Websites. W3TC is the only web host agnostic Web Performance Optimization (WPO) framework for WordPress trusted by millions of publishers, web developers, and web hosts worldwide for more than a decade. So the script does not handle this case correctly and can delete unaffected files.W3 Total Cache (W3TC) improves the SEO, Core Web Vitals and overall user experience of your site by increasing website performance and reducing load times by leveraging features like content delivery network (CDN) integration and the latest best practices. All but one photos will be selected for deletion. The script does not know about them and probably will put them in one group. The script suggests keeping a photo with a larger resolution, but it is only a suggestion that must be checked. Photo groups must be visually inspected before actual deleting because false positives are very common.įalse positives for the script can include:Ĭropped photos - actual and cropped photos will have the same created time. So the only way to clean up duplicates was to group photos by their created time or filename with small variations and keep only one photo from the group by the heuristic criteria (photo resolution or size). And the last problem was that a filename does not always reflect created time of the photo, which is encoded to EXIF and can be extracted only by API. This case became worse when Google Photo applied compression to photos, so I could not distinguish photos just by their size.

Somehow they broke their algorithm for detecting whether the local photo was uploaded, so the Google Photo contained thousands of photos but with names that may be the same or differ by a second. I wrote it to handle the case when the Google Photo application started to repeatedly upload local files from my Android phone. It’s up to specialized photo tools or organizers. The script cannot help with a more general case when it’s needed to find photo duplicates based on their content. The script solves the very specific problem with repeated uploading same files.

Google photo duplicate cleaner