The Wayback Machine seems to archive 404 pages as well as actual content. For example this page has a ton of 404 pages, and only the first few copies have actual content.

Is there any way to just show the non-404-pages in the calender view? And/or is there any way to (automatically) go to the latest non-404 copy in the archive?

There is a JSON API that seems to return the latest successfully (non-404) archived copy. For my example it looks like this. It could possibly be utilized by a bookmarklet or addon or something.

This script uses that API, but it is for webmasters: http://blog.archive.org/2013/10/24/web-archive-404-handler-for-webmasters/

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    I read on the wiki about a plug-in / add-on you can install on Firefox that will automatically detect a 404 error page in Wayback Machine. I am not entirely sure if this is the answer you were looking for, but if so, I will convert the comment to an answer. en.wikipedia.org/wiki/Help:Using_the_Wayback_Machine
    – Rudolph
    Commented Jul 28, 2014 at 9:28
  • I believe the description on Wikipedia is a bit unclear. What I think the addon does is detect 404-pages and redirect to the Wayback Machine. Anyways, it doesn't work with new versions of Firefox.
    – Hjulle
    Commented Jul 28, 2014 at 12:26

1 Answer 1


I am currently using the following bookmarklet:

var f = function(jsn){window.location.href=jsn.archived_snapshots.closest.url;};var d = document,z=d.createElement('script'),b=d.body,l=d.location;z.setAttribute('src','https://archive.org/wayback/available?url='+encodeURIComponent(l.href)+'&callback=f');z.setAttribute('type', "application/javascript");b.appendChild(z);void(0);

or for sites where I haven't enabled javascript (in the NoScript addon) i use


followed by


This uses the API I mentioned above in the question. They are tested in Firefox 32.0 and probably contains multiple bugs.

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