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A comment on Ask HN: Is the past disappearing on the web?. Parent comment

Re:Ask HN: Is the past disappearing on the web? by shishironline on Wednesday January 26, 2022 @08:43AM (#30085239)
Open developer tools and type `document.lastModified` in the console. Though this is painful for every web page, is useful in these instances. Maybe someone with experience in developing Chrome extensions, can develop one for getting this plus other useful page info by just clicking on it in the toolbar
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Re:Ask HN: Is the past disappearing on the web? by qw on Wednesday January 26, 2022 @10:18AM (#30086511)
"last modified" only works for static content, and not pages that are rendered dynamically or where the header is set based on cache settings.

Even for static content, the date may be wrong as the output may have been generated multiple times since it was first created.

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Re:Ask HN: Is the past disappearing on the web? by shishironline on Wednesday January 26, 2022 @11:18AM (#30087379)
Thanks for the info
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Re:Ask HN: Is the past disappearing on the web? by iggldiggl on Friday January 28, 2022 @09:05AM (#30114690)
Wordpress-based blogs (maybe others, too) often have a timestamp hidden in an HTML Meta-tag even if the date is otherwise hidden from regular view.
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Re:Ask HN: Is the past disappearing on the web? by bryanrasmussen on Wednesday January 26, 2022 @09:02AM (#30085466)
why would companies who are trying to deceive not go through the trouble of changing the last-modified header? At any rate lots of sites don't set last modified anyway so that makes it January 1, 1970, GMT.
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