Internet Wayback Machine Adds Historical TextDiff

The Wayback Machine has a cool new feature for looking at the historical changes of a web page.

The color scale shows how much a page has changed since it was last cached & you can select between any two documents to see how a page has changed over time.

You can then select between any two documents to see a side-by-side comparison of the documents.

That quickly gives you an at-a-glance view of how they’ve changed their:

  • web design
  • on-page SEO strategy
  • marketing copy & sales strategy

For sites that conduct seasonal sales & rely heavily on holiday themed ads you can also look up the new & historical ad copy used by large advertisers using tools like Moat, WhatRunsWhere & Adbeat.

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from SEO Book http://www.seobook.com/internet-wayback-machine-adds-historical-textdiff
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