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HasData: Structured Web Data APIs vs RestoSignals

Same instrument, two spec sheets — measured, not claimed.

APIHasData: Structured Web Data APIsHEALTHY73RestoSignalsREACHABLE100
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms526748
P95 · ms2109748
AuthapiKeyapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified
Free tierFree tier — API key required
Rate limitUnpublished
In directory since2026-07-052026-10-19
operationalpartialdownno data

HasData: Structured Web Data APIs vs RestoSignals: common questions

Which is more reliable, HasData: Structured Web Data APIs or RestoSignals?

Both are neck-and-neck — HasData: Structured Web Data APIs and RestoSignals each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, HasData: Structured Web Data APIs or RestoSignals?

HasData: Structured Web Data APIs has the lower median latency in our checks — HasData: Structured Web Data APIs responds in 526 ms versus RestoSignals at 748 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do HasData: Structured Web Data APIs and RestoSignals need an API key?

Both ask you to authenticate — HasData: Structured Web Data APIs uses an API key and RestoSignals uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call HasData: Structured Web Data APIs and RestoSignals from the browser?

Only HasData: Structured Web Data APIs is browser-friendly — it returns CORS headers over HTTPS. RestoSignals needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are HasData: Structured Web Data APIs and RestoSignals free for commercial use?

HasData: Structured Web Data APIs has unclear commercial terms, and RestoSignals has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.