API that detects whether an IP address belongs to a proxy, VPN or known abuser.
Found via: StackScope Discovery (Indie) 2 · StackScope Wider Web 1
proxycheck.io has been detected on 3 launches since first appearing in August 2026. Most recent detection: ISP Insight Indonesia - Crowdsourced Broadband Quality, 5 days ago.
Share of new sites using proxycheck.io
Each dot is one launch day. Line is the 7-day rolling average. Chart starts at first detection.
Fraud Prevention leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | – |
|
3.03% | 93.08% |
| #2 | – |
|
0.16% | 4.88% |
| #3 | – |
|
0.05% | 1.63% |
| #4 | ▲6 |
|
0.01% | 0.33% |
| #5 | ▼1 |
|
0.01% | 0.21% |
| … | ||||
| #40 |
|
<0.01% | <0.01% | |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Fraud Prevention tool. All 70 in Fraud Prevention →
Recent launches we can show
2 of the 3 sites using proxycheck.io are product launches we list individually. The other 1 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. How StackScope Discovery works
The StackScope API serves all 3 sites using proxycheck.io, filterable and exportable, from £15 a month.