Thread by @LC_Labs

Never seen a web archive before? Let's take a quick look at an archived version of loc.gov. -AG

This calendar view shows all of the dates we’ve archived of this URL – each blue bubble on the calendar represents an archived "snapshot." Navigate the years by scrolling the bar above. - AG
go.usa.gov/xmsSV

Bigger bubbles = more content archived!
Pick a date from the calendar, like this one from 2000 and click around to see what was archived.

#webarchiving attempts to preserve as much content at a URL as we can -- aiming to replicate look & feel at the time we capture + document changes over time by capturing a site multiple times. How often we capture depends on type of site & how often we suspect changes occur -AG

You may find some things missing in very early captures. Our staff started doing quality review on our web archives when we noticed critical elements – like images & stylesheets - were missing using the early crawling tools and approaches. -AG

To this day, we try to do review of as much content in the archives as we can, though that task can be daunting given the amount we collect! -AG

Note that I use the term "site" above loosely – websites are not easily defined. I talked about this many years ago in this post: “Archiving the ‘Intellectual’ Components of a Website"
go.usa.gov/xmsh5
- AG