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`https://blog.archive.org/2017/10/05/wayback-machine-playback-now-wit...
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`Internet Archive Blogs
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`A blog from the team at archive.org
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`Wayback Machine Playback… now with
`Timestamps!
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`Posted on October 5, 2017 by Mark Graham
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`The Wayback Machine has an exciting new feature: it can list the dates and times, the Timestamps, of all page ele-
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`ments compared to the date and time of the base URL of a page. This means that users can see, for instance, that
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`an image displayed on a page was captured X days before the URL of the page or Y hours after it. Timestamps are
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`available via the “About this capture” link on the right side of the Wayback Toolbar. Here is an example:
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`The Timestamps list includes the URLs and date and time difference compared to the current page for the follow-
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`ing page elements: images, scripts, CSS and frames. Elements are presented in a descending order. If you put your
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`cursor over a list element on the page, it will be highlighted and if you click on it you will be shown a playback of
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`just that element.
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`28-Feb-20, 6:01 PM
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`Wayback Machine Playback… now with Timestamps! | Internet Archive...
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`https://blog.archive.org/2017/10/05/wayback-machine-playback-now-wit...
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`Under the hood
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`Web pages are usually a composition of multiple elements such as images, scripts and CSS. The Wayback Machine
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`tries to archive and playback web pages in the best possible manner, including all their original elements. Each
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`web page element has its own URL and Timestamp, indicating the exact date and time it was archived. Page ele-
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`ments may have similar Timestamps but they could also vary significantly for various reasons which depend on
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`the web crawling process. By using the new Timestamps feature, users can easily learn the archive date and time
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`for each element of a page.
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`Why this is important
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`The Wayback Machine is increasingly used in critical procedures such as legal evidence or political debate mate-
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`rial. It is important that what is presented is clear and transparent, even in the light of a web that was not de-
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`signed to be archived. One of the ways a web archive could be confusing is via anachronisms, displaying content
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`from different dates and times than the user expects. For example, when a archived page is played back, it could
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`include some images from the current web, making it look like the image came from the past when it did not. We
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`implemented Timestamps to provide users with more context about, and in turn hopefully greater confidence in,
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`what they are seeing.
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`Posted in Announcements, News | 1 Reply
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`1 thought on “Wayback Machine Playback… now with Timestamps!”
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`Pamela Drew
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`October 6, 2017 at 4:02 am
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`I would be lost without the Wayback Machine, my most visited site for over a decade! Y’all were best in my
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`book with URL saves, the rest is pure magic; big time thanks!
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`Comments are closed.
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