HEI

Historical Exchange Index

A quiet registry of crypto exchanges, active and gone.

Stats

Registry snapshot, coverage, and historical distributions

Snapshot counts, active-side and dead-side analysis, archive coverage, confidence, and historical distributions across the canonical HEI registry.

Last updated 2026-07-18T16:56:44.939ZSnapshot / trend / coverageEntity-level view onlyDeployment split deferred
Total entities
869
entity-level registry count
Dead-side
215
dead · merged · acquired · rebranded
Active-side
654
active · limited · inactive
Total events
1004
timeline records in canonical data
Total evidence
3497
supporting evidence records
Archive coverage
94%
entities with archived URLs
High confidence
54%
entities marked high confidence
Origin known
100%
entities with country / origin data

Core analysis

Primary registry structure, active/dead composition, quality, and historical distributions.

Status breakdown

Whole-registry distribution across active-side, dead-side, and uncertain end states.

Active
556 · 64%
Limited
49 · 6%
Inactive
49 · 6%
Dead
179 · 21%
Merged
0 · 0%
Acquired
14 · 2%
Rebranded
22 · 3%
Unknown
0 · 0%

Type breakdown

Entity mix across centralized, decentralized, and hybrid exchange records.

CEX405 · 47%
DEX445 · 51%
Hybrid19 · 2%

Active analysis

Current classification, URL handling, launch timing, and evidence density on the active-side.

Active-side total
654
active · limited · inactive
Active-side archive coverage
91
598 / 654 active-side
Active-side high confidence
54
share of active-side
Active entries with launch year
241
dated active-side entries

Active-side status mix

Active556 · 85%
Limited49 · 7%
Inactive49 · 7%

URL status

Live verified516 · 79%
Live unverified40 · 6%
Redirected7 · 1%
Repurposed6 · 1%
Dead domain6 · 1%
Unknown79 · 12%

Launch year

31
2014
7
2015
8
2016
23
2017
44
2018
15
2019
15
2020
26
2021
9
2022
19
2023
9
2024
9
2025

Age bands

0–2 years18 · 3%
3–5 years54 · 8%
6–9 years97 · 15%
10+ years72 · 11%
Unknown413 · 63%

Type mix

CEX213 · 33%
DEX425 · 65%
Hybrid16 · 2%

Confidence

High351 · 54%
Medium295 · 45%
Low8 · 1%

Evidence depth

2–4 sources483 · 74%
5+ sources171 · 26%

Last verified recency

0–30 days588 · 90%
31–90 days61 · 9%
91–180 days5 · 1%

Dead analysis

Dead-side outcomes, end-state causes, archived coverage, and measured lifespan.

Dead-side total
215
dead · merged · acquired · rebranded
Dead-side archive coverage
100%
dead-side entities with archived URLs
Average lifespan
3.7
years where launch and death dates are both known
Dead-side with 2+ evidence
100%
214 / 215 dead-side

Dead-side status mix

Dead179 · 83%
Acquired14 · 7%
Rebranded22 · 10%

Death reason breakdown

Hack
16 · 7%
Insolvency
15 · 7%
Regulation
34 · 16%
Scam / Rug
10 · 5%
Acquisition
14 · 7%
Rebrand
23 · 11%
Voluntary shutdown
57 · 27%
Chain failure
1 · 0%
Unknown
45 · 21%

Death year distribution

12
2015
7
2016
7
2017
9
2018
29
2019
24
2020
32
2021
15
2022
24
2023
20
2024
10
2025
9
2026

Evidence depth

1 source1 · 0%
2–4 sources107 · 50%
5+ sources107 · 50%

Quality & coverage

Confidence, URL handling, archive/date/domain coverage, and visible unknown-field rates.

Confidence

High470 · 54%
Medium388 · 45%
Low11 · 1%

URL status coverage

Live verified
527 · 61%
Live unverified
48 · 6%
Redirected
19 · 2%
Repurposed
26 · 3%
Dead domain
112 · 13%
Unsafe
1 · 0%
Unknown
136 · 16%

Archive / date / domain coverage

MetricValueNote
Archive coverage94%813 / 869 entities
Dead-side archive coverage100%215 / 215 dead-side
Active-side archive coverage91%598 / 654 active-side
High-confidence share54%470 / 869 entities
Launch date known49%430 / 869 entities
Death date known100%214 / 215 dead-side
Origin known100%869 / 869 entities
Original domain known94%813 / 869 entities

Unknown-field rates

MetricValueNote
Missing launch date43951% of entities
Dead-side missing death date10% of dead-side
Missing origin00% of entities
Missing original domain566% of entities

Record freshness

0–30 days640 · 74%
31–90 days172 · 20%
91–180 days57 · 7%

Registry timelines & distributions

Snapshot growth when available, plus launch-year and death-year distributions.

Snapshot history currently contains a single generated snapshot. Until multi-snapshot history is available, this section emphasizes current snapshot metrics and historical distributions.
Entities in snapshot
869
Events in snapshot
1004
Evidence in snapshot
3497
Snapshot archive coverage
94%
archive coverage in current snapshot

Launch year distribution

55
2014
14
2015
17
2016
51
2017
73
2018
42
2019
26
2020
30
2021
10
2022
24
2023
11
2024
10
2025

Death year distribution

12
2015
7
2016
7
2017
9
2018
29
2019
24
2020
32
2021
15
2022
24
2023
20
2024
10
2025
9
2026

Deep breakdowns

Lower-priority drilldowns. These remain available without competing with the core analysis layer.

Country / origin

Strict-country counts are separated from bucketed origin values such as Global or ecosystem-level origins.

Expand

Strict country

Singapore
32 · 8%
Seychelles
24 · 6%
United Kingdom
24 · 6%
United States
24 · 6%
South Korea
15 · 4%
Australia
13 · 3%
Canada
13 · 3%
China
12 · 3%

Origin bucket

Ethereum ecosystem
436 · 92%
Global
37 · 8%

Country / origin × status

OriginTotalDead-sideActive-side
Ethereum ecosystem43618418
Global37532
Singapore321616
Seychelles24915
United Kingdom24168
United States24159
South Korea1578
Australia1349

Country / origin × type

OriginTotalCEXDEXHybrid
Ethereum ecosystem436142510
Global372674
Singapore323011
Seychelles242301
United Kingdom242400
United States242301
South Korea151500
Australia131111

Country / origin completeness

MetricValueNote
Origin present869100% of entities
Strict-country entries39646% of entities
Bucketed origin entries47354% of entities
Missing origin00% of entities

Event internals

Event type mix, impact severity, and status-effect composition from recorded timeline events.

Expand
Average events per entity
1.2
Average events per dead-side entity
2.3
Average events per active-side entity
0.8

Event type breakdown

Launched
330 · 33%
Rebranded
45 · 4%
Acquired
30 · 3%
Hack
52 · 5%
Exploit
16 · 2%
Withdrawal Suspended
31 · 3%
Deposit Suspended
1 · 0%
Trading Halted
19 · 2%
Service Outage
22 · 2%
Regulatory Action
85 · 8%

Impact level

Critical294 · 29%
High324 · 32%
Medium350 · 35%
Low36 · 4%

Status effect

Dead221 · 22%
Inactive29 · 3%
Limited216 · 22%
Active503 · 50%
No change18 · 2%

Evidence internals

Evidence source mix, reliability, claim scopes, and archived-share summary from the support layer.

Expand
Average evidence per entity
4
Average evidence per dead-side entity
5.1
Average evidence per active-side entity
3.7
Archived evidence share
90%
3155 / 3497 evidence items

Source type breakdown

Official statement
1311 · 37%
Official blog
218 · 6%
Official social
32 · 1%
Archive capture
178 · 5%
News article
637 · 18%
Court document
9 · 0%
Regulatory notice
89 · 3%
Database reference
970 · 28%
Community reference
50 · 1%
Other
3 · 0%

Reliability

High1687 · 48%
Medium1761 · 50%
Low49 · 1%

Claim scope

Entity
1039 · 30%
Event
760 · 22%
Status
972 · 28%
Death reason
52 · 1%
Launch date
378 · 11%
Death date
64 · 2%
URL history
194 · 6%
Ownership
38 · 1%

Record completeness

Alias, notes, summary, archive, and evidence-depth coverage at the entity layer.

Expand
MetricValueNote
Aliases present74%639 / 869 entities
Notes present100%867 / 869 entities
Summary present100%869 / 869 entities
Archived URL present94%813 / 869 entities
Dead-side with 2+ evidence100%214 / 215 dead-side
Entities with 0 evidence0%0% of entities
Entities with 1 evidence0%0% of entities