Dead Internet Theory: Freeware and shareware once stayed downloadable because copies sat on several servers at once. When a mirror dies or silently alters the files it hosts, the "backup copy" becomes part of the problem instead of the cure.
Dead Internet Theory: A Flash file is a package of instructions written for a plug-in that no modern browser ships. Works from the Flash era survive as files by the thousand, but playing them again depends on emulators and on what each original actually connected to.
Dead Internet Theory: Java applets once turned browsers into a place where physics, chemistry, and math demonstrations actually ran. When browsers dropped the plugin, that one-click access went away — and what survives now depends on downloads, ports, and reconstruction.
Dead Internet Theory: Saving a Shockwave project meant keeping its .dcr file, its external 3D worlds and Xtras, and a compatible player. When Adobe discontinued Shockwave in 2019, recovery fell to patched projectors — and even then, missing pieces like Orbit Spherez's lost levels can keep a surviving game unfinished.
Dead Internet Theory: A VRML world was never one file. Textures, sounds, inlined scenes, and the viewer that interpreted them all shaped what a visitor saw, so most surviving .wrl files can only show part of the original.
Dead Internet Theory: Why so many early streaming collections — radio clips, news excerpts, and interviews — are now hard to open, from proprietary codecs to .ram metafiles that were never more than links, and what conversion and emulation can actually recover.
Dead Internet Theory: Why removing an extension from a store catalog can hurt more than the tool being gone — the listing carries discoverability, updates, reviews, and trust — and what a preserved copy still needs if it is ever to run again.
Dead Internet Theory: Why a delisted app stops being reinstallable even when you downloaded it before — and what a preserved copy actually keeps when the store, the operating system, and the servers all go away.
Dead Internet Theory: Most browser games were a client talking to a server, and preservation mostly saved the client. Using Club Penguin as the documented example, this explains what lived on the server, why the saved files alone cannot run the game, and how far reverse-engineered reconstruction can go.
Dead Internet Theory: Using Google Will Eat Itself as a documented example, this explains how net art that depends on a live external service breaks when the service stops responding, what survives in archives, and why the work cannot be fully recovered.
Dead Internet Theory: A DRM-protected download stays locked to a permission granted by a server, so the 2008 Yahoo Music Store shutdown stranded purchased songs on the machines that authorized them. This explains what was lost, what kept working, and how little a personal backup could recover.
Dead Internet Theory: Why content assembled in the browser arrives too late for many crawlers, so archives store a page skeleton instead of the page — and what running a real browser does and does not recover.
Dead Internet Theory: Public web archives capture what an anonymous visitor can read, so anything behind a login quietly sits outside the record. The Yahoo Groups shutdown shows how a twenty-year archive of communities escaped public capture, and how authorized members saved what they could.
Dead Internet Theory: Records that live behind search forms have no links for crawlers to follow, so most web archives overlook them. This article explains how form-driven databases get lost — the Haddon catalogue is the documented case — and why exports and static pages preserve them where crawls cannot.
Dead Internet Theory: Streaming audio and video is not a file a crawler can copy, so page-level archives save the player and miss the stream. The British Library's One & Other case shows what was lost, what survived, and what a complete capture has to include.
Dead Internet Theory: How robots.txt, a file written for search-engine crawlers, has decided which pages get archived and which stored captures can be seen, and what a missing capture actually does and does not prove.
Dead Internet Theory: Why the CAPTCHAs and browser checks that keep scrapers off sites also keep preservation crawlers out, what those barriers leave uncaptured, and how authorized access can still save material without dismantling the defenses.
Dead Internet Theory: Many pages are built separately for each visitor, so one URL can stand for dozens of different versions. A web archive captures only the version its anonymous crawler happened to get, and reading that capture later takes context the archive does not store.
Dead Internet Theory: Web servers decide what to send based on where a request comes from, and crawlers are requests too. That leaves archives crawling from a single country with a lopsided record of the web, which national archives and regional captures only partly repair.
Dead Internet Theory: A file can keep answering at its address long after the links and index entries pointing to it vanish. This explains how pages end up reachable by a known URL but absent from every index, and what records still lead back to them.