Proxy Fraud Checker

Crawlers or multi-account workflows hitting 403 blocks? Check the IP your browser actually presents before another round of failed requests drains your bandwidth budget. Proxy Fraud Checker shows your current public IP, Hosting vs ISP/non-hosting classification, provider/ASN and third-party risk signals in one click. It runs only when you open the popup or press Check again. No signup, no background polling, no page access. 100GB of usable data can cost more than the sticker price suggests. Illustrative assumptions: at $1/GB and 10% usable yield, hosting traffic costs $1,000; at $5/GB and 80% yield, residential traffic costs $625. The difference is $375. These are hypothetical inputs, not vendor prices, measured success rates or promised savings. Crawlers / multi-account workflows frequently blocked by 403s? Explore high-purity residential proxies, exclusive offer placeholders and reproducible benchmarks. Compare Smartproxy and Bright Data through the clearly labeled links in the popup and test on your own workload before purchasing. Required campaign wording (Chinese): 爬虫/多账号频繁遭遇 403 阻断？推荐高纯度住宅代理（附专属优惠与基准测试） Referral links: - Smartproxy: https://go.272738.xyz/smartproxy - Bright Data: https://go.272738.xyz/brightdata The short links currently redirect to destinations containing the inactive REPLACE_ME referral placeholder. Exclusive discounts are not active. Once activated, qualifying purchases through affiliate links may earn the publisher a commission. Recommendations are advertising links, not independent certification. The extension does not modify links on other websites or inject affiliate codes into your browsing. An ISP/non-hosting result is a residential candidate, not proof of a residential household, exclusive use or cleanliness. Risk signals may be incomplete or inaccurate. This tool does not measure target-site success, bypass access controls, guarantee 403 avoidance or establish that an IP is fraudulent. Use services within the permissions and terms applicable to your work.