- Free allowance
- One ephemeral trycloudflare.com hostname per cloudflared run; no account, no card
- Verdict
- ★ qualifiesusable as stated; the read path was probed
- Cost
- free tier
- Identity
- anonymousno card, no phone
- Binding limit
- retention-clampedhostname lifetime equals process lifetime; a restart invalidates every URL
- Evidence
- measured5 sources; a live request was made and its output kept
- Freshness
- stale on 2026-12-22checked 2026-10-22 (live); stale on 2026-12-22
| Free tier | one ephemeral trycloudflare.com hostname per cloudflared run; no account, no card unit unlimited; metered on request-count |
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| Price | none stated |
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| Limits | - retention-clamped (binding) hostname lifetime equals process lifetime; a restart invalidates every URL
- request-rate 400 concurrent GETs of a 3-byte object all returned 200; no 429 seen
- per-object-cap no proxy body cap: a 400 MiB POST body was accepted
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| Binding | retention-clamped the hostname's lifetime binds the shape of the workload; the 522 rate under concurrency binds its throughput, but a new run restores a fresh hostname and cannot restore a stable one. |
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| Identity | anonymous no account, no card; measured by running cloudflared with no login |
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| Egress | not metered; no byte quota published or observed |
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| Per-object cap | no proxy body cap observed: a 400 MiB POST body traversed byte-identically |
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| Retention | the hostname dies with the process; a new run gets a new random name |
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| Interface | rest, cli cloudflared tunnel --url, then https://<random>.trycloudflare.com |
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| Tooling | cloudflared 2026.10.3 |
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| Composes with | the front half of the free public-endpoint chain: origin -> cloudflared -> a random trycloudflare hostname, with no account and no domain. The chain's scarce link is the hostname's lifetime, so it serves a test or a handover, not a stable address. |
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| Reliability | at 32 concurrent 100 MiB ranged GETs, 8 returned 522 and aggregate throughput fell to 3.79 MiB/s, below the 6.27 MiB/s single-stream baseline |
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| Notes | Measured 6.27 MiB/s single stream (104,857,600 bytes in 15.948 s), which is 0.52 TiB/day. The earlier figure of 0.55 TiB/day here was the egress topic's row for a different host at 6.72 MiB/s. The concurrency ceiling is real and the 522s are the honest number. |
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| Parsed numbers | - has-free-tier 1
- per-object-cap 400 MiB
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