web archiving tools and technologies

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for the Web Archiving workshop at IS&T Archiving 2013 in Washington, DC

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web archiving tools and technologies

  1. 1. Web Archiving Tools and Technology Dan Chudnov - GWU Libraries dchud at gwu edu @dchud IS&T Workshop, April 2, 2013 Washington DC USATuesday, April 2, 13
  2. 2. select scope crawl process access unt nom X X tool heritrix X X wct X X X X netarchive X X X X X suite warc tools X nutchwax X X wayback XTuesday, April 2, 13
  3. 3. select • what to collect • who authorizes • when • what orderTuesday, April 2, 13
  4. 4. scope •how much • robots.txt • what to leave out • which doors not to openTuesday, April 2, 13
  5. 5. crawl • start with seeds • find, queue, follow links • be kind to each site • parallelize across sites • schedule, log, checkpoint, resume • bundleTuesday, April 2, 13
  6. 6. process • lump, split, bundle, rebundle • quality control • index, surrogate, reorder, prep for access • store, distribute, preserveTuesday, April 2, 13
  7. 7. access • browse • search • known items • patterns • needlesTuesday, April 2, 13
  8. 8. select scope crawl process access unt nom X X tool heritrix X X wct X X X X netarchive X X X X X suite warc tools X nutchwax X X wayback XTuesday, April 2, 13
  9. 9. UNT URL Nomination Tool • collaborative selection • collect seed lists • attach metadata • agree on scope • feed crawlersTuesday, April 2, 13
  10. 10. heritrix • free software from Internet Archive • easy to start with • difficult to master • powerful, configurable, confusingTuesday, April 2, 13
  11. 11. heritrix cont’d • two major versions, “1” and “3” • WCT and NetArchive embed “1” • “1” - minimal UI • “3” - even less • iterate early - long learning curve • best available toolTuesday, April 2, 13
  12. 12. heritrix cont’dTuesday, April 2, 13
  13. 13. Web Curator Tool • free software from NLNZ / BL • full crawling workflow suite • select, obtain permissions, authorize • schedule, crawl w/ heritrix 1Tuesday, April 2, 13
  14. 14. WCT cont’d • quality review • statistics, hierarchy visualization, pruning • troubleshooting • task notifications • reportingTuesday, April 2, 13
  15. 15. WCT cont’dTuesday, April 2, 13
  16. 16. NetarchiveSuite • free software from netarkivet.dk • used by State and University Library, The Royal Library in Denmark • complete solution from selection to accessTuesday, April 2, 13
  17. 17. NetarchiveSuite cont’dTuesday, April 2, 13
  18. 18. NetarchiveSuite cont’d • selection, scoping, scheduling • crawling, troubleshooting, tweaking • system dashboard, quality assurance • heritrix and waybackTuesday, April 2, 13
  19. 19. warc-tools • command-line tools for arc/warc • validate, summarize, filter • bundle / rebundle, convert, indexTuesday, April 2, 13
  20. 20. NutchWax • free software • index / search of ARC data • development slowed / stopped but still usedTuesday, April 2, 13
  21. 21. searching web archives is hardTuesday, April 2, 13
  22. 22. wayback • free software from Internet Archive • public web access to web archives • what you’ve seen at archive.orgTuesday, April 2, 13
  23. 23. wayback cont’dTuesday, April 2, 13
  24. 24. wayback cont’dTuesday, April 2, 13
  25. 25. Tuesday, April 2, 13

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