release: dev to main, 8 new pages and the keyed cohort's real success rate

.env.example

@@ -2,8 +2,18 @@
 # Leave unset locally — the spec files already embed their URL.
 # PROMETHEUS_URL=https://prometheus-production-0859.up.railway.app
 
-# Optional. Slack incoming webhook for the /api/report bug-report route.
-# When unset the route silently no-ops.
+# Where /api/report delivers a reader's bug report. Telegram is tried first
+# and Slack is the fallback; with neither set the route answers 503 and the
+# form says reporting is not configured.
+#
+# TELEGRAM_CHAT_ID is the destination, not the bot: send the bot any message,
+# then read it from
+#   https://api.telegram.org/bot<token>/getUpdates  -> result[].message.chat.id
+# A personal chat id is a positive integer; a group's is negative.
+# TELEGRAM_BOT_TOKEN=123456:AA...
+# TELEGRAM_CHAT_ID=123456789
+#
+# Legacy. Still honoured when Telegram is unset.
 # SLACK_REPORT_WEBHOOK_URL=https://hooks.slack.com/services/...
 
 # Optional. Live-page WebSocket relay. Public (NEXT_PUBLIC_) so it's baked

benchmarks/arbitrum-rpc.yml

@@ -3,9 +3,9 @@
 slug: arbitrum-rpc
 number: "045"
 title: "Arbitrum RPC endpoints: free public URLs and private API-key providers by latency"
-seo_title: "Arbitrum RPC endpoints: public and private, ranked by latency"
+seo_title: "Arbitrum RPC endpoints: public and private, by latency"
 seo_description: "{{best_name}} leads free Arbitrum RPC at {{best_p50}} (p50, 24h); URLs for all {{count}} no-key endpoints. {{best_name:tier:keyed}} leads the private (API-key) cohort at {{best_p50:tier:keyed}}."
-subtitle: HTTP round-trip latency for eth_getBlockByNumber against every free, no-key public Arbitrum RPC endpoint (probed every 60 seconds) and, under the Access selector (Private), against the API-key endpoints of Alchemy, Chainstack, GetBlock and QuickNode (every 120 seconds), from 3 regions. The two cohorts are ranked separately, never against each other.
+subtitle: HTTP round-trip latency for eth_getBlockByNumber against every free, no-key public Arbitrum RPC endpoint (probed every 60 seconds) and, under the Access selector (Private), against the API-key endpoints of Alchemy, Chainstack, GetBlock, QuickNode and Dwellir (every 120 seconds), from 3 regions. The two cohorts are ranked separately, never against each other.
 
 category: RPCs
 status: live
@@ -17,15 +17,15 @@ seo_intro: |
   Arbitrum is the second-largest cohort in the cluster: {{count}} no-key providers including the Arbitrum Foundation's own `arb1.arbitrum.io/rpc`, and one of the few chains where Lava and MeowRPC still compete on a free tier. Foundation endpoints are documented best-effort, and our data shows what that means in practice: a median of {{p50:arbitrum-official}} with a p99 of {{p99:arbitrum-official}} over the last 24 hours. Every provider answers the identical `eth_getBlockByNumber` probe every 60 seconds from us-east, eu-west and Singapore.
 
 abstract: |
-  Arbitrum: {{count}} free public RPC endpoints answering `eth_getBlockByNumber` every 60 seconds from us-east, eu-west and Singapore, ranked by 24h median. {{best_name}} leads at {{best_p50}}; the chain-official endpoint measures {{p50:arbitrum-official}}. The same page carries the private cohort (API key), Alchemy, Chainstack, GetBlock and QuickNode on their keyed Arbitrum endpoints every 120 seconds: switch the Access selector; {{best_name:tier:keyed}} leads it at {{best_p50:tier:keyed}}.
+  Arbitrum: {{count}} free public RPC endpoints answering `eth_getBlockByNumber` every 60 seconds from us-east, eu-west and Singapore, ranked by 24h median. {{best_name}} leads at {{best_p50}}; the chain-official endpoint measures {{p50:arbitrum-official}}. The same page carries the private cohort (API key), Alchemy, Chainstack, GetBlock, QuickNode and Dwellir on their keyed Arbitrum endpoints every 120 seconds: switch the Access selector; {{best_name:tier:keyed}} leads it at {{best_p50:tier:keyed}}.
   We measure the round-trip latency of a single, identical RPC call (`eth_getBlockByNumber`) against every no-key public Arbitrum endpoint that sustains continuous probing, {{count}} providers, every 60 seconds, from us-east, eu-west and Singapore. The harness also classifies every response (ok / http_err / jsonrpc_err / stale / timeout) and audits archive depth every 5 minutes, so the leaderboard rewards sustained, honest availability rather than a fast error message. The cross-chain view lives on the parent rpc-capabilities benchmark; this page is the Arbitrum-scoped answer with per-region breakdowns as a first-class dimension.
 
 methodology:
   - "Cadence: every 60 seconds per provider, from each of 3 probe regions (us-east Virginia, eu-west Amsterdam, sgp Singapore). Headline p50/p90/p99 aggregate across all 3 regions via Prometheus `avg(quantile_over_time(...))`; per-region breakdowns are first-class on this page via the region tabs."
   - "Payload: `{\"jsonrpc\":\"2.0\",\"id\":<rotating>,\"method\":\"eth_getBlockByNumber\",\"params\":[\"latest\",false]}`. Plain HTTP POST, identical for every endpoint, no API key in any request. The request id rotates, but that does not guarantee a cache miss: many caches normalise `id` away. Measured 2026-10-08, fixed and rotating ids answer within 2 to 4 percent of each other."
   - "Latency measurement, call-result classification (`ok`, `http_err`, `jsonrpc_err`, `stale`, `timeout`) and the archive-depth audit follow the cluster method documented on [rpc-capabilities](https://openchainbench.com/benchmarks/rpc-capabilities#methodology); this page is the Arbitrum-scoped view of the same harness, with the same exclusion rules."
   - "Chain scope: every query on this page is pinned to chain=\"arbitrum\". Provider coverage: {{count}} no-key public-read endpoints live today, each listed with its URL in the endpoints table on this page. Exclusions follow the cluster-wide rules documented on the parent benchmark."
-  - "Private cohort (Access selector, Private): Alchemy, Chainstack, GetBlock and QuickNode probed on their keyed Arbitrum endpoints every 120 seconds from the same 3 regions, same call (eth_getBlockByNumber, rotating id), same ok / http_err / jsonrpc_err / stale / timeout classification."
+  - "Private cohort (Access selector, Private): Alchemy, Chainstack, GetBlock, QuickNode and Dwellir probed on their keyed Arbitrum endpoints every 120 seconds from the same 3 regions, same call (eth_getBlockByNumber, rotating id), same ok / http_err / jsonrpc_err / stale / timeout classification."
   - "Keys live in the probe environment, never in the repo. Plan tiers, disclosed: Alchemy: a Free plan key (30M CU per month, 300 compute units per second), the tier any reader gets; Alchemy states free and paid keys share one routing; Chainstack: a Global Node on the Growth plan; QuickNode: an endpoint on a Build plan ($49 per month), shared fleet; GetBlock: an endpoint on the Enterprise plan, shared by the three probe regions. Chainstack, GetBlock and QuickNode provided their endpoints."
   - "Dwellir plan tier, disclosed: a Developer plan key ($49 per month, 25 million API responses, 100 responses per second; 1 RPC response = 1 API credit, no compute units). Shared nodes, the same product a reader buys. Dwellir publishes no Solana endpoint, so it is absent from that page rather than shown as unavailable."
   - "GetBlock regional pairing: each probe region uses GetBlock's nearest endpoint, us-east to New York, eu-west to Frankfurt, sgp to Singapore. Alchemy, Chainstack and QuickNode publish one routed entry point per chain instead, which in the general case does land a probe on a nearby node. Some of any gap between the two arrangements is deployment topology rather than node speed, and a deployment in one of these regions would see the same benefit GetBlock's endpoint gives the probe."
@@ -252,6 +252,7 @@ providers:
     queries:
       p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="alchemy",chain="arbitrum",tier="keyed"})
       p90: avg(ocb:rpc_latency_milliseconds:p90_24h{provider="alchemy",chain="arbitrum",tier="keyed"})
+      p95: avg(ocb:rpc_latency_milliseconds:p95_24h{provider="alchemy",chain="arbitrum",tier="keyed"})
       p99: avg(ocb:rpc_latency_milliseconds:p99_24h{provider="alchemy",chain="arbitrum",tier="keyed"})
       mean: avg(ocb:rpc_latency_milliseconds:mean_24h{provider="alchemy",chain="arbitrum",tier="keyed"})
       success: sum(ocb:rpc_call:ok_rate_24h{provider="alchemy",chain="arbitrum",tier="keyed"}) / sum(ocb:rpc_call:rate_24h{provider="alchemy",chain="arbitrum",tier="keyed"})
@@ -276,6 +277,7 @@ providers:
     queries:
       p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="chainstack",chain="arbitrum",tier="keyed"})
       p90: avg(ocb:rpc_latency_milliseconds:p90_24h{provider="chainstack",chain="arbitrum",tier="keyed"})
+      p95: avg(ocb:rpc_latency_milliseconds:p95_24h{provider="chainstack",chain="arbitrum",tier="keyed"})
       p99: avg(ocb:rpc_latency_milliseconds:p99_24h{provider="chainstack",chain="arbitrum",tier="keyed"})
       mean: avg(ocb:rpc_latency_milliseconds:mean_24h{provider="chainstack",chain="arbitrum",tier="keyed"})
       success: sum(ocb:rpc_call:ok_rate_24h{provider="chainstack",chain="arbitrum",tier="keyed"}) / sum(ocb:rpc_call:rate_24h{provider="chainstack",chain="arbitrum",tier="keyed"})
@@ -300,6 +302,7 @@ providers:
     queries:
       p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="getblock",chain="arbitrum",tier="keyed"})
       p90: avg(ocb:rpc_latency_milliseconds:p90_24h{provider="getblock",chain="arbitrum",tier="keyed"})
+      p95: avg(ocb:rpc_latency_milliseconds:p95_24h{provider="getblock",chain="arbitrum",tier="keyed"})
       p99: avg(ocb:rpc_latency_milliseconds:p99_24h{provider="getblock",chain="arbitrum",tier="keyed"})
       mean: avg(ocb:rpc_latency_milliseconds:mean_24h{provider="getblock",chain="arbitrum",tier="keyed"})
       success: sum(ocb:rpc_call:ok_rate_24h{provider="getblock",chain="arbitrum",tier="keyed"}) / sum(ocb:rpc_call:rate_24h{provider="getblock",chain="arbitrum",tier="keyed"})
@@ -324,6 +327,7 @@ providers:
     queries:
       p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="quicknode",chain="arbitrum",tier="keyed"})
       p90: avg(ocb:rpc_latency_milliseconds:p90_24h{provider="quicknode",chain="arbitrum",tier="keyed"})
+      p95: avg(ocb:rpc_latency_milliseconds:p95_24h{provider="quicknode",chain="arbitrum",tier="keyed"})
       p99: avg(ocb:rpc_latency_milliseconds:p99_24h{provider="quicknode",chain="arbitrum",tier="keyed"})
       mean: avg(ocb:rpc_latency_milliseconds:mean_24h{provider="quicknode",chain="arbitrum",tier="keyed"})
       success: sum(ocb:rpc_call:ok_rate_24h{provider="quicknode",chain="arbitrum",tier="keyed"}) / sum(ocb:rpc_call:rate_24h{provider="quicknode",chain="arbitrum",tier="keyed"})
@@ -348,6 +352,7 @@ providers:
     queries:
       p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="dwellir",chain="arbitrum",tier="keyed"})
       p90: avg(ocb:rpc_latency_milliseconds:p90_24h{provider="dwellir",chain="arbitrum",tier="keyed"})
+      p95: avg(ocb:rpc_latency_milliseconds:p95_24h{provider="dwellir",chain="arbitrum",tier="keyed"})
       p99: avg(ocb:rpc_latency_milliseconds:p99_24h{provider="dwellir",chain="arbitrum",tier="keyed"})
       mean: avg(ocb:rpc_latency_milliseconds:mean_24h{provider="dwellir",chain="arbitrum",tier="keyed"})
       success: sum(ocb:rpc_call:ok_rate_24h{provider="dwellir",chain="arbitrum",tier="keyed"}) / sum(ocb:rpc_call:rate_24h{provider="dwellir",chain="arbitrum",tier="keyed"})
@@ -372,6 +377,7 @@ providers:
     queries:
       p50: avg(ocb:rpc_latency_cold_milliseconds:p50_24h{provider="alchemy",chain="arbitrum",tier="keyed"})
       p90: avg(ocb:rpc_latency_cold_milliseconds:p90_24h{provider="alchemy",chain="arbitrum",tier="keyed"})
+      p95: avg(ocb:rpc_latency_cold_milliseconds:p95_24h{provider="alchemy",chain="arbitrum",tier="keyed"})
       p99: avg(ocb:rpc_latency_cold_milliseconds:p99_24h{provider="alchemy",chain="arbitrum",tier="keyed"})
       mean: avg(ocb:rpc_latency_cold_milliseconds:mean_24h{provider="alchemy",chain="arbitrum",tier="keyed"})
       success: sum(ocb:rpc_call:ok_rate_24h{provider="alchemy",chain="arbitrum",tier="keyed"}) / sum(ocb:rpc_call:rate_24h{provider="alchemy",chain="arbitrum",tier="keyed"})
@@ -395,6 +401,7 @@ providers:
     queries:
       p50: avg(ocb:rpc_latency_cold_milliseconds:p50_24h{provider="chainstack",chain="arbitrum",tier="keyed"})
       p90: avg(ocb:rpc_latency_cold_milliseconds:p90_24h{provider="chainstack",chain="arbitrum",tier="keyed"})
+      p95: avg(ocb:rpc_latency_cold_milliseconds:p95_24h{provider="chainstack",chain="arbitrum",tier="keyed"})
       p99: avg(ocb:rpc_latency_cold_milliseconds:p99_24h{provider="chainstack",chain="arbitrum",tier="keyed"})
       mean: avg(ocb:rpc_latency_cold_milliseconds:mean_24h{provider="chainstack",chain="arbitrum",tier="keyed"})
       success: sum(ocb:rpc_call:ok_rate_24h{provider="chainstack",chain="arbitrum",tier="keyed"}) / sum(ocb:rpc_call:rate_24h{provider="chainstack",chain="arbitrum",tier="keyed"})
@@ -418,6 +425,7 @@ providers:
     queries:
       p50: avg(ocb:rpc_latency_cold_milliseconds:p50_24h{provider="getblock",chain="arbitrum",tier="keyed"})
       p90: avg(ocb:rpc_latency_cold_milliseconds:p90_24h{provider="getblock",chain="arbitrum",tier="keyed"})
+      p95: avg(ocb:rpc_latency_cold_milliseconds:p95_24h{provider="getblock",chain="arbitrum",tier="keyed"})
       p99: avg(ocb:rpc_latency_cold_milliseconds:p99_24h{provider="getblock",chain="arbitrum",tier="keyed"})
       mean: avg(ocb:rpc_latency_cold_milliseconds:mean_24h{provider="getblock",chain="arbitrum",tier="keyed"})
       success: sum(ocb:rpc_call:ok_rate_24h{provider="getblock",chain="arbitrum",tier="keyed"}) / sum(ocb:rpc_call:rate_24h{provider="getblock",chain="arbitrum",tier="keyed"})
@@ -441,6 +449,7 @@ providers:
     queries:
       p50: avg(ocb:rpc_latency_cold_milliseconds:p50_24h{provider="quicknode",chain="arbitrum",tier="keyed"})
       p90: avg(ocb:rpc_latency_cold_milliseconds:p90_24h{provider="quicknode",chain="arbitrum",tier="keyed"})
+      p95: avg(ocb:rpc_latency_cold_milliseconds:p95_24h{provider="quicknode",chain="arbitrum",tier="keyed"})
       p99: avg(ocb:rpc_latency_cold_milliseconds:p99_24h{provider="quicknode",chain="arbitrum",tier="keyed"})
       mean: avg(ocb:rpc_latency_cold_milliseconds:mean_24h{provider="quicknode",chain="arbitrum",tier="keyed"})
       success: sum(ocb:rpc_call:ok_rate_24h{provider="quicknode",chain="arbitrum",tier="keyed"}) / sum(ocb:rpc_call:rate_24h{provider="quicknode",chain="arbitrum",tier="keyed"})
@@ -464,6 +473,7 @@ providers:
     queries:
       p50: avg(ocb:rpc_latency_cold_milliseconds:p50_24h{provider="dwellir",chain="arbitrum",tier="keyed"})
       p90: avg(ocb:rpc_latency_cold_milliseconds:p90_24h{provider="dwellir",chain="arbitrum",tier="keyed"})
+      p95: avg(ocb:rpc_latency_cold_milliseconds:p95_24h{provider="dwellir",chain="arbitrum",tier="keyed"})
       p99: avg(ocb:rpc_latency_cold_milliseconds:p99_24h{provider="dwellir",chain="arbitrum",tier="keyed"})
       mean: avg(ocb:rpc_latency_cold_milliseconds:mean_24h{provider="dwellir",chain="arbitrum",tier="keyed"})
       success: sum(ocb:rpc_call:ok_rate_24h{provider="dwellir",chain="arbitrum",tier="keyed"}) / sum(ocb:rpc_call:rate_24h{provider="dwellir",chain="arbitrum",tier="keyed"})
@@ -479,3 +489,4 @@ providers:
         - region: ap-southeast
           p50: avg(ocb:rpc_latency_cold_milliseconds:p50_24h{provider="dwellir",chain="arbitrum",tier="keyed",region="sgp"})
           series: avg(avg_over_time(rpc_latency_cold_milliseconds{provider="dwellir",chain="arbitrum",tier="keyed",region="sgp"}[1h]))
+