PageBolt vs serpstack
Same instrument, two spec sheets — measured, not claimed.
PageBolt vs serpstack: common questions
Which is more reliable, PageBolt or serpstack?
Both are neck-and-neck — PageBolt and serpstack each measure 99.02% 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, PageBolt or serpstack?
serpstack has the lower median latency in our checks — PageBolt responds in 751 ms versus serpstack at 492 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 PageBolt and serpstack need an API key?
Both ask you to authenticate — PageBolt uses an API key and serpstack 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 PageBolt and serpstack from the browser?
Neither sends browser-friendly CORS headers reliably, so call PageBolt and serpstack from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are PageBolt and serpstack free for commercial use?
PageBolt has unclear commercial terms, and serpstack 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.