Block Explorers
Block explorers evaluated across what works without paying, data completeness and indexing lag, contract verification support, and independence from the chain.
13providers tracked
7ranked (methodology v2026.11.1)
12 November 2026Ranking snapshot
3 November 2026oldest read · due 18 DecIndependent. Evidence-based.We rank with a published method and sourced evidence. No one can pay to rank.How it works
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Pick a country to see which block explorers serve it. Nothing is hidden — any that does not is listed with that reason.- 🇺🇸 United States
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7 providers match your requirements
Out of 7 ranked providers. 0 excluded.
What this ranks
Ranked here: block explorers, which index a chain's data so a reader can explore the chains they actually work on.Not ranked here: explorers that no longer exist as a product to compare, whether wound down, redirected elsewhere, repurposed for other products or left with no instance to open.7 of the 13 assessed are ranked; 6 were turned away by name. Who, and whyRequirements narrow the list; they never change a published ChainChoice Score. How the ranking works
BL
Blockscout
How Blockscout was chosen
Wins the weighted total without leading any single criterionThe self-hostable multichain challenger
83 / 100 out of 100published score, #1 of all 7 worldwide
Evidence
High
4/4 criteria scored, with 4 dated sources quoted.VerificationIndependence
Why it leads
- Blockscout is 1 point ahead of Routescan, mainly because it scores higher on its independence and its verification.
- Ahead of Routescan on independence (+5.0 points) and verification (+1.5 points)
- Provider states broad availability
Tradeoff
Free usability: 3 points below the best in this ranking
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2
RO
The operator of snowtrace.io
82 / 100 out of 100
3
The EVM incumbent
80 / 100 out of 100
4
Bitcoin's default explorer
76 / 100 out of 100
5
Solana's default explorer
61 / 100 out of 100
6
AR
Entity-labelled address explorer
54 / 100 out of 100
7
The Polkadot/Substrate explorer
50 / 100 out of 100
Not confirmed (2) — not ranked until its source is read again; listed, not ruled out.
- OKLink · Re-read pending, no primary record: OKLink publishes nothing on index completeness, lag or incidents.
- Tenderly · Re-read pending, page walled: Tenderly’s pricing and terms pages answer only behind a security check.
Compare providers (0)
See key differences in features, fees, security and more.
Verification
Contract verification support
24% of the published criteria weight. Scored 0–10 from the published evidence; the order below is by this criterion, then the published ranking.
| Provider | Verification (0–10) | ChainChoice Score |
|---|---|---|
| Blockscout | 8 | 83 |
| Etherscan | 8 | 80 |
| Routescan | 7 | 82 |
| Subscan | 3 | 50 |
| Solscan | 2 | 61 |
| mempool.space | 1 | 76 |
| Arkham Intelligence | 1 | 54 |
Free usability
What works without paying
30% of the published criteria weight. Scored 0–10 from the published evidence; the order below is by this criterion, then the published ranking.
| Provider | Free usability (0–10) | ChainChoice Score |
|---|---|---|
| mempool.space | 9 | 76 |
| Routescan | 8 | 82 |
| Blockscout | 6 | 83 |
| Etherscan | 4 | 80 |
| Solscan | 3 | 61 |
| Arkham Intelligence | 3 | 54 |
| Subscan | 2 | 50 |
Data quality
Data completeness & indexing lag
26% of the published criteria weight. Scored 0–10 from the published evidence; the order below is by this criterion, then the published ranking.
| Provider | Data quality (0–10) | ChainChoice Score |
|---|---|---|
| Blockscout | 5 | 83 |
| Routescan | 5 | 82 |
| Etherscan | 4 | 80 |
| mempool.space | 4 | 76 |
| Solscan | 3 | 61 |
| Subscan | 3 | 50 |
| Arkham Intelligence | 2 | 54 |
Independence
Independence from the chain
20% of the published criteria weight. Scored 0–10 from the published evidence; the order below is by this criterion, then the published ranking.
| Provider | Independence (0–10) | ChainChoice Score |
|---|---|---|
| Etherscan | 8 | 80 |
| mempool.space | 8 | 76 |
| Blockscout | 7 | 83 |
| Solscan | 7 | 61 |
| Arkham Intelligence | 5 | 54 |
| Routescan | 3 | 82 |
| Subscan | 2 | 50 |
All 4 published criteria
Every ranked row’s score on each criterion, in the published order. Choose a column to order by it.
| Provider | ChainChoice Score | |||||
|---|---|---|---|---|---|---|
| 1 | Blockscout | 6 | 5 | 8 | 7 | 83 |
| 2 | Routescan | 8 | 5 | 7 | 3 | 82 |
| 3 | Etherscan | 4 | 4 | 8 | 8 | 80 |
| 4 | mempool.space | 9 | 4 | 1 | 8 | 76 |
| 5 | Solscan | 3 | 3 | 2 | 7 | 61 |
| 6 | Arkham Intelligence | 3 | 2 | 1 | 5 | 54 |
| 7 | Subscan | 2 | 3 | 3 | 2 | 50 |
How this ranking works
How firm the #1 is, the per-criterion arithmetic behind each score, who pays ChainChoice, and which block explorers were assessed and left out.
One point from changingBlockscout leads Routescan by 1 point
A one-point change on one criterion puts Routescan first, so read both.
See the arithmetic
Move what works without paying — the heaviest criterion that changes it, weighted 30 — by a single point and Routescan takes first place. Both are worth reading. The published rankings file
Why this score4 published criteria · leads 2 of 4
Published criterionWtScore, and the best hereGap/10 out of 10Pts
What works without paying7.2−365.8
Data completeness & indexing lag6.2·54.2
Contract verification support5.8·86.1
Independence from the chain4.8−174.5
Σ methodology points20.5/32
Each bar is the score on that criterion’s own 0–10 scale, never rescaled to the pool. The dark line is the best any product here reached on that axis. Wt is the most the criterion can add to the 86-point weighted total. Pts is weight × score × 32; the sum is the methodology score, and each weighted point behind the leader costs 2.6 on the displayed score. how these are weighted
Why it ranks first
Why Blockscout leads this category right now
The self-hostable multichain challenger — except it stopped being open source on 22 April 2026. Strongest on contract verification support (8/10): Blockscout supports contract verification through its UI and API, Hardhat and Foundry, Sourcify, Remix, Stylus contracts via API and thirdweb, accepting source code or standard JSON input across its 100+ hosted chains. Weakest on data completeness & indexing lag (5/10): Blockscout's status monitor gives its Ethereum indexer 99.960% health over 90 days and 99.902% over 30 days, with its other indexers at 99.990-99.998%; the monitor tracks indexer health, and Blockscout publishes no completeness or lag figure. Published price: Blockscout API rate-limits page (docs.blockscout.com/rate-limits), read 2026-11-03: "Every tier includes access to all 100+ Blockscout-supported chains with a single key." Free "5 RPS" "100K/day" "$0"; Builder "15 RPS" "100M/mo" "$49/mo"; Pro "30 RPS"…
Best for
Verification — 8/10
Main tradeoff
The headline differentiator versus Etherscan — 'open source, no lock-in' — stopped being true on 2026-04-22.
Verify before signup
Blockscout API rate-limits page (docs.blockscout.com/rate-limits), read 2026-11-03: "Every tier includes access to all 100+ Blockscout-supported chains with a single key." Free "5 RPS" "100K/day" "$0"; Builder "15 RPS" "100M/mo" "$49/mo"; Pro "30 RPS" "500M/mo" "$199/mo"; Business "50 RPS" "3B/mo" "$999/mo"; Enterprise "Contact us". "At the default 20-credit cost per call, the free tier’s 100K daily credits is roughly 5,000 standard requests a day before the counter resets at midnight UTC." Heavier endpoints cost 25 to 50 credits per call on the same page. The Blockscout API page (docs.blockscout.com/devs/blockscout-api) adds "No credit card required for the free tier." Self-hosting for your own chain carries no licence fee, but per docs.blockscout.com/devs/blockscout-license every interface must show a "Powered by Blockscout" credit and paid resale or hosting needs a Commercial Licence. Autoscout, the managed launchpad, is pay-as-you-go in prepaid credits (docs.blockscout.com/using-blockscout/autoscout). Blockscout v12.0.0 (released 7 October 2026) carries breaking API changes and is rolling out to hosted instances gradually.
Recommendation summary
What should decide this category
Which chains do you query daily, and are they first-class on this explorer?
Will you depend on the free tier in production, and have you read its rate limits?
Do you need contract verification for your specific toolchain?
Quick picks
Strong options in this category
Start with the lead choice first, then use the shortlist only if you still need a challenger or stronger fit for a specific setup.
Best overall
BL
Blockscout
The self-hostable multichain challenger — except it stopped being open source on 22 April 2026.
The self-hostable multichain challenger — except it stopped being open source on 22 April 2026. Strongest on contract verification support (8/10): Blockscout supports contract verification through its UI and API, Hardhat and Foundry, Sourcify, Remix, Stylus contracts via API and thirdweb, accepting source code or standard JSON input across its 100+ hosted chains. Weakest on data completeness & indexing lag (5/10): Blockscout's status monitor gives its Ethereum indexer 99.960% health over 90 days and 99.902% over 30 days, with its other indexers at 99.990-99.998%; the monitor tracks indexer health, and Blockscout publishes no completeness or lag figure. Published price: Blockscout API rate-limits page (docs.blockscout.com/rate-limits), read 2026-11-03: "Every tier includes access to all 100+ Blockscout-supported chains with a single key." Free "5 RPS" "100K/day" "$0"; Builder "15 RPS" "100M/mo" "$49/mo"; Pro "30 RPS"…
Best for: Verification — 8/10
What works without paying · weight 30%6/10Data completeness & indexing lag · weight 26%5/10Contract verification support · weight 24%8/10Independence from the chain · weight 20%7/10
Quick pick
RO
Routescan
The operator of snowtrace.io, with a keyless API and a public uptime record at status.routescan.io.
The operator of snowtrace.io, with a keyless API and a public uptime record at status.routescan.io. Strongest on what works without paying (8/10): Routescan's free API tier needs no account: 2 calls a second and 10,000 a day without a key, 5 calls a second and 100,000 a day with a free key, on the Data API and the Etherscan-compatible API; the Blockscout-compatible API comes only with paid plans. Weakest on independence from the chain (3/10). Published price: Routescan's own llms.txt (routescan.io/llms.txt), read 2026-11-03, describes its pricing page as "API plans for the Data API and the Etherscan-compatible API. Free, no key: 2 calls per second, 10,000 calls per day.
Best for: Free usability — 8/10
What works without paying · weight 30%8/10Data completeness & indexing lag · weight 26%5/10Contract verification support · weight 24%7/10Independence from the chain · weight 20%3/10
Quick pick
Etherscan
The EVM incumbent — one V2 key across 60+ chain IDs, on a free tier that now excludes BNB Chain, Base, OP…
The EVM incumbent — one V2 key across 60+ chain IDs, on a free tier that now excludes BNB Chain, Base, OP…. Strongest on contract verification support (8/10): Etherscan documents contract verification through its API and through the verify support built into Hardhat, Foundry and Remix, with a common-errors guide, and states that source code and ABI endpoints are available on all chains for every API plan, including the Free Tier. Weakest on what works without paying (4/10): Etherscan's free API tier allows 3 calls a second and 100,000 a day on selected chains only (BNB Smart Chain, Base, OP Mainnet and Avalanche are paid-only), excludes Pro endpoints, is labelled personal and research use, and blocks requests once the daily cap is reached. Published price: Etherscan API pricing page (etherscan.io/apis, which redirects to etherscan.io/api/pricing), read 2026-11-03, monthly toggle: "Free $0" for "Personal & Research use" with "3 calls/second limit", "Up to 100,000 API calls/day", "Selected chains (90% coverage)"…
Best for: Verification — 8/10
What works without paying · weight 30%4/10Data completeness & indexing lag · weight 26%4/10Contract verification support · weight 24%8/10Independence from the chain · weight 20%8/10
Quick pick
mempool.space
Bitcoin's default explorer — AGPL and genuinely self-hostable, now venture-funded and El Salvador-domiciled.
Bitcoin's default explorer — AGPL and genuinely self-hostable, now venture-funded and El Salvador-domiciled. Strongest on what works without paying (9/10): mempool.space's site and public REST API need no key or account; rate limits are enforced, with bans possible for repeat abuse, queries spanning more than 10 blocks are reserved for sponsors, and the whole stack is self-hostable under AGPL-3.0 at no licence cost. Weakest on contract verification support (1/10): mempool.space is a Bitcoin-only explorer and API; neither its enterprise page nor its REST documentation offers smart-contract verification. Published price: Mempool Enterprise page (mempool.space/enterprise, rendered), read 2026-11-03, monthly toggle: "Silver $1499 per month", "Gold $2999 per month", "Platinum $5999 per month" (a "Yearly (BTC only)" toggle is also offered).
Best for: Free usability — 9/10
What works without paying · weight 30%9/10Data completeness & indexing lag · weight 26%4/10Contract verification support · weight 24%1/10Independence from the chain · weight 20%8/10
Considered and not ranked
6 products we looked at and left out
A shortlist is only honest if it says who it turned away. Each of these was assessed against the same published criteria as the ranked table and excluded for a stated reason — not overlooked.
We assessed 13 products here and rank 7 — 54% of what we looked at. That share is of the products we assessed, not of the category: how many exist is not something we can count, so we do not claim a number for it.
OKLink· Re-read, no recordTenderly· Re-read pending, walledEthernow (Blocknative Mempool Explorer)Etherchain· No longer operatingBTC.com ExplorerPolkascan
What this ranking does not assess
- Exit failure: you cannot get out at par, on time, or with what is yours.
These can still cost you money here; the ranking does not measure them, so a high place says nothing about them. Which criterion scores each family, and why the others do not apply, is in /data/risk-coverage.json.
How this ranking is built
Reviewed on what survives the free tier, data completeness and indexing lag, contract verification support, and independence from the chain's own foundation.
Data checked Nov 2026 · Independent rankings · We show our work
How this page is reviewed
Reviewed means every product ranked on this page was read against its sources on or after that date; every ranked category is re-read at least every 45 days. Models research, extract and parse. A deterministic engine ranks. Every quote passes an adversarial refute pass.
Accountable for this review: Mathias Siemonsmeier, Founder.
How we review · Review calendar · Corrections log · How we make money
Direct answer
What is the best block explorer in 2026?
Blockscout ranks #1 overall for block explorers on ChainChoice. The self-hostable multichain challenger — except it stopped being open source on 22 April 2026. It holds that rank under an affiliate-blind methodology scored across 4 published, weighted criteria — the code that ranks providers physically cannot read affiliate payouts (CI-enforced), so a payout can't move a rank. The verdict re-computes on every fee change, incident, or regulatory action; the full reasoning and the audit receipt are under Methodology.
How you can lose money here, and what the ranking scores
- Information failure: the number is wrong or bought, or your data leaks.Scored by Data completeness & indexing lag · 26% (Blockscout 5/10, Routescan 5/10, Etherscan 4/10)Scored by Independence from the chain · 20% (Blockscout 7/10, Routescan 3/10, Etherscan 8/10)
Not assessed by this ranking: Exit failure. A high place says nothing about these; the Methodology tab says what each means.
Also scored, as cost, quality or a summary of several families: What works without paying (30%), Contract verification support (24%).
FAQs
3 questions readers ask before choosing block explorers.
Frequently asked
Questions people ask before choosing explorers
Are free explorer tiers actually usable?
That is precisely what is scored. Several free tiers have been narrowed since launch, and a lookup that works today may sit behind a paywall or a rate limit when a project starts depending on it.
Why does operator independence matter?
Because an explorer run by the chain's own foundation is presenting data about its sponsor. It is not disqualifying, but it is a fact worth weighting rather than ignoring.
Is a higher chain count better?
Not on its own. Breadth is worthless if the chain you need is the rate-limited one, so coverage is assessed against the chains a buyer actually uses.
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Best picks
Best block explorers in 2026
Weighted on what works without paying (30), data completeness & indexing lag (26), contract verification support (24), and independence from the chain (20). The heaviest is what works without paying: Which core features survive the free tier and its rate limits once you genuinely depend on them.
Best overall
BL
Blockscout
The self-hostable multichain challenger — except it stopped being open source on 22 April 2026.
Data checked Nov 2026
The self-hostable multichain challenger — except it stopped being open source on 22 April 2026. Strongest on contract verification support (8/10): Blockscout supports contract verification through its UI and API, Hardhat and Foundry, Sourcify, Remix, Stylus contracts via API and thirdweb, accepting source code or standard JSON input across its 100+ hosted chains. Weakest on data completeness & indexing lag (5/10): Blockscout's status monitor gives its Ethereum indexer 99.960% health over 90 days and 99.902% over 30 days, with its other indexers at 99.990-99.998%; the monitor tracks indexer health, and Blockscout publishes no completeness or lag figure. Published price: Blockscout API rate-limits page (docs.blockscout.com/rate-limits), read 2026-11-03: "Every tier includes access to all 100+ Blockscout-supported chains with a single key." Free "5 RPS" "100K/day" "$0"; Builder "15 RPS" "100M/mo" "$49/mo"; Pro "30 RPS"…
Best for: Verification — 8/10
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MS
Written and reviewed by Mathias Siemonsmeier, Founder
Not financial advice · For informational purposes only · Always do your own research