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internetarchive
wayback
Java2013–2026
internetarchive / wayback

wayback

IA's public Wayback Machine (moved from SourceForge)

7Distinct people
11Mentions
0Explicit recommenders
873GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

IA's public Wayback Machine (moved from SourceForge)

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year11 dated mentions

Observed mentions: 2013-01-11 00:28:15 UTC to 2026-01-15 19:59:19 UTC.

0122013-01-01 00:00:00 UTC to 2014-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments20132014-01-01 00:00:00 UTC to 2015-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2015-01-01 00:00:00 UTC to 2016-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2016-01-01 00:00:00 UTC to 2017-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2017-01-01 00:00:00 UTC to 2018-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2018-01-01 00:00:00 UTC to 2019-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2019-01-01 00:00:00 UTC to 2020-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments20192020-01-01 00:00:00 UTC to 2021-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-01-01 00:00:00 UTC to 2022-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments2022-01-01 00:00:00 UTC to 2023-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2023-01-01 00:00:00 UTC to 2024-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments2024-01-01 00:00:00 UTC to 2025-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2025-01-01 00:00:00 UTC to 2026-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-01-01 00:00:00 UTC to 2027-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments. Incomplete calendar period.2026*

* An incomplete calendar period is marked with an outlined bar. Its count is not directly comparable with a full period.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20132013-01-01 00:00:00 UTC2014-01-01 00:00:00 UTC202
20142014-01-01 00:00:00 UTC2015-01-01 00:00:00 UTC101
20152015-01-01 00:00:00 UTC2016-01-01 00:00:00 UTC000
20162016-01-01 00:00:00 UTC2017-01-01 00:00:00 UTC000
20172017-01-01 00:00:00 UTC2018-01-01 00:00:00 UTC000
20182018-01-01 00:00:00 UTC2019-01-01 00:00:00 UTC101
20192019-01-01 00:00:00 UTC2020-01-01 00:00:00 UTC000
20202020-01-01 00:00:00 UTC2021-01-01 00:00:00 UTC000
20212021-01-01 00:00:00 UTC2022-01-01 00:00:00 UTC202
20222022-01-01 00:00:00 UTC2023-01-01 00:00:00 UTC101
20232023-01-01 00:00:00 UTC2024-01-01 00:00:00 UTC202
20242024-01-01 00:00:00 UTC2025-01-01 00:00:00 UTC101
20252025-01-01 00:00:00 UTC2026-01-01 00:00:00 UTC000
2026 (partial)2026-01-01 00:00:00 UTC2027-01-01 00:00:00 UTC101

What Hacker News says

11 sources
https://github.com/ArchiveTeam/grab-site might be helpful. I'm a fan of the ability to create WARC archives from a target, uploard the WARC files to object storage (whether that is IA, S3, Backblaze B2, etc), and then keep them in cold storage or serve them up via HTTPS or a torrent (mutable, preferred). The Internet Archive serves a torrent file for every item they host; one can do the same with WARC archives to enable a distributed archive. CDX indexes can be used for rapidly querying the underlying WARC archives. You might support cryptographically signing WARC archives; Wayback is particular about archive provenance and integrity, for example. https://www.loc.gov/preservation/digital/formats/fdd/fdd0005... ("CDX Internet Archive Index File") https://www.loc.gov/preservation/digital/formats/fdd/fdd0002... ("WARC, Web ARChive file forma
Read the rest
In ArchiveBox is evolving: the future of self-hosted internet archives
I had a look into this as part of a research project. To reduce the burden of writing specific scraping software, I investigated the software listed by the Archive Team[0]. The command line tools and libraries aside (as they would require much more specific tailoring to make them work), I was particularly interested in HTTrack and Warrick. Warrick[1] is defined as a tool to recover lost websites using various online archives and caches. Warrick[2] requires some expert knowledge in order to get it up and running. I found Warrick was a bit outdated, so decided to try something similar but more up to date, and came across this (hartator/wayback_machine_downloader). I found this to be a bit easier to work with as it would allow me to download snapshots within a time period, which is what I needed for this project. After running it for ~12 hou
Read the rest
rs on my local machine, it still had not completed, downloading only 11768 of 94518 files. Instead, I found myself writing a Python based tool that could fetch with much more accuracy using the CDX server[3] and filtering by date, targeting only certain fails and allow for multi threading. In order to improve the process, and narrow down the data of what is needed, I scoped to just July and December timeframes per year, from 2010 to this year, only targeting html files. For example: http://web.archive.org/cdx/search/cdx?url=%s&matchType=prefi... Hopefully someone finds this useful. [0] https://archiveteam.org/index.php?title=Software [1] https://github.com/oduwsdl/warrick [2] https://code.google.com/archive/p/warrick/wikis/About_Warric... [3] https://github.com/internetarchive/wayback/tree/master/wayba...
In Wayback Machine Downloader
Which paid services are you referring to? It is likely that these services aren't distributing the projects they are based on, if so, then they are in compliance with the licenses of the open source projects, which probably don't require attribution unless you distribute them. This project started in 2015 btw. Another similar project called waybackpack started in 2016. There are probably more projects. IMO wayback-machine-downloader is the better project though. https://github.com/jsvine/waybackpack The Wayback CDX Server API these projects are based on is quite simple to use btw, just some JSON responses to decode. https://archive.org/help/wayback_api.php https://github.com/internetarchive/wayback/blob/master/wayba...
In Wayback Machine Downloader
Thanks! We were writing up a response at the same time: The Wayback Machine data is stored in WARC or ARC files[0] which are written at web crawl time by the Heritrix crawler[1] (or other crawlers) and stored as regular files in the archive.org storage cluster. Playback is accomplished by binary searching a 2-level index of pointers into the WARC data. The second level of this index is a 20TB compressed sorted list of (url, date, pointer) tuples called CDX records[2]. The first level fits in core, and is a 13GB sorted list of every 3000th entry in the CDX index, with a pointer to larger CDX block. Index lookup works by binary searching the first level list stored in core, then HTTP range-request loading the appropriate second-level blocks from the CDX index. Finally, web page data is loaded by range-requesting WARC data pointed to by the
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CDX records. Before final output, link re-writing and other transforms are applied to make playback work correctly in the browser. The server stack: - frontend: Tengine + HAProxy to a pool of Wayback tomcat app servers[3] - backend: The redis-backed archive.org metadata API[4] for object location and nginx on linux (via ext4) for data service [0] http://en.wikipedia.org/wiki/Web_ARChive [1] https://github.com/internetarchive/heritrix3 [2] https://github.com/internetarchive/CDX-Writer [3] https://github.com/internetarchive/wayback [4] http://blog.archive.org/2013/07/04/metadata-api/ -sam and raj, Internet Archive
In Wayback Machine Hits 400,000,000,000
The index for Wayback is a massive sorted text file (called a CDX) containing a line for each URL and timestamp. For very large installations this index is sharded across multiple servers and queried in parallel. The lookups are done using plain old binary search. http://archive.org/web/researcher/cdx_file_format.php Each CDX record maps a URL-timestamp pair to a byte offset into an ARC or WARC file. These are essentially just gzipped HTTP responses concatenated together: http://archive.org/web/researcher/ArcFileFormat.php http://www.digitalpreservation.gov/formats/fdd/fdd000236.sht... The document is retrieved, uncompressed, URLs are rewritten, the navigation banner javascript injected and the result is sent to the client. The code is here: https://github.com/internetarchive/wayback
In Wayback Machine: Now with 240,000,000,000 URLs

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