Search engine optimization tools come and go. But two have been around for decades and remain essential and free: Wayback Machine and Google cache. Both take recurring snapshots of billions of web pages and allow anyone to view the images. Those images are handy for general research, but they are invaluable for SEO, helping understand a page’s history and what may have caused its boost or decline in rankings. Both tools, incidentally, allow website owners to prevent the… Source link
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