archival copy

An  archival copy  is a copy of a web page made (often by someone other than the author) at a particular point in time, that can be used as a reference if the original disappears or is temporarily unavailable.

Archival copies are sometimes called "archives" for short, however in the context of independent publishing, the term "archive" is specifically used to refer to personal historical archives and the navigation to use them on a personal site.

Why? / Use cases

 * 1) Store HTML to parse the microformats in the page to render comments and reply context
 * 2) Store screenshot of page to preserve how a page looked like, without needing to store all related files (CSS, JavaScript, images)

Chris Aldrich
In late December 2016, with the help of PressForward a WordPress plugin, I began self-archiving read posts and am contemplating doing the same with bookmark posts on a selective basis. (Additional details)

I also use the Post Archival plugin for WordPress to create additional backups of my content and content to which I link.

Internet Archive
You can curl http://web.archive.org/save/{url} to archive a post.

Perma.cc

 * https://perma.cc/, has an API documented here: https://perma.cc/docs/developer

WebCite

 * http://www.webcitation.org/

WebRecorder

 * https://webrecorder.io/ - works clientside, e.g. with logged in sites, but saves "recordings" to their service, which you can later share (assuming you named them), may require login for recordings to persist.

archive.is

 * https://archive.is/

LOCKSS
The LOCKSS Program is an open-source, library-led digital preservation system built on the principle that “lots of copies keep stuff safe.” Many versions of these are "dark archives" which may not be publicly available.

Link Archiver on Twitter
"I make sure the Internet Archive's Wayback Machine has a current snapshot of the links my friends tweet. Follow me and I'll follow you! Experimental, by @xor. If I follow you, then any time you tweet a link I'll quietly make sure there's a backup in the Internet Archive's Wayback Machine."

Savemy.News
Ben Walsh of the LA Times Data Desk has created a simple web interface at www.SaveMy.News that journalists can use to archive their stories to The Internet Archive and WebCite. One can log into the service via Twitter and later download a .csv file with a running list of all their works with links to the archived copies.

Tools
Tools and approaches to tools for keeping archival copies of others pages.

IndieArchive
IndieArchive is a open source project to collaboratively grow collective archives of public pages using indieweb sites.

Owark
Owark is short for Open Web Archive and is a WordPress plugin for archiving pages you link to, and then upon linkrot, automatically showing the archived copy instead of linking to a broken page.


 * Details: http://owark.org/2012/04/14/whats-next-for-owark/

ArchiveBox
ArchiveBox is a self-hosted tool that "takes a list of website URLs you want to archive, and creates a local, static, browsable HTML clone of the content from those websites (it saves HTML, JS, media files, PDFs, images and more)."

Archivy
Archivy is an open source "self-hosted knowledge repository that allows you to safely preserve useful content that contributes to your own personal, searchable and extensible wiki." (source code)

Perkeep
Perkeep is an open source personal storage system for storing, syncing, sharing, modelling and backing up content. (source code)

Wallabag
Wallabag is a self hostable application for saving web pages. (source code)

LinkAce
LinkAce is a self-hosted bookmark archive. ([https://github.com/Kovah/LinkAce/ source code).