“List all search engines existed in history. Make sure not to miss any modern ones.”
This is a living research index, not a complete census — no authoritative registry of search engines exists, and “all” cannot be proven. It covers 1,253 catalogued public-facing search-service names from timelines, lists and 2023–2026 AI-search sources (current to 31 Aug 2026): 390 have a sourced launch year (1982–2026), 100 are explicitly ended or inactive, 258 are classed as AI search or answer engines, and 863 names have no resolved launch year — blank means unresolved, never a guess.
Each column is one launch year; height is the number of catalogued names with that sourced launch year. A further 863 names lack a resolved year and are not drawn here — see the era chart and table below.
Precomputed era totals. Within each bar: purple = AI search / answer-engine names, teal = other, with the explicitly ended/inactive count noted. “Year unresolved” dwarfs every dated era — a measure of thin documentation, not of history.
| Name | Launch | End | Reported status | Region | Categories | Best source |
|---|
Method: 1,253 normalized public-facing search-service names gathered from historical timelines, engine lists, and modern regional, privacy, decentralized and 2023–2026 AI-search sources, current to 2026-08-31. Included: WWW search engines, metasearch, search portals, notable vertical/specialized engines, decentralized/privacy engines, and named AI answer/search products. Excluded: site-internal search boxes, browser find, desktop-only file search, enterprise-only software, and API-only products. Launch/end years and statuses appear only when sourced; blanks are unresolved, not inferred. Counts and era totals come from the precomputed summary rows. Category boundaries are fuzzy and false positives may remain: treat this as a living research index, not an exhaustive registry. Long category strings are trimmed in the table for space.