免費 / 開源GPTZero is an AI detection platform for identifying machine-generated text. It combines a text detector with a Chrome extension, a plagiarism checker, writing-process verification, and educator-focused classroom tools.
hCaptcha 每月有 5,446,045 次造訪,月增率 +18.7%,定價模式為免費增值、免費試用、需聯絡報價、免費。ProofUp 每月有 0 次造訪,成長率 -100%,定價模式為需聯絡報價。
| 面向/指標 | ![]() | ![]() |
|---|---|---|
| 官方網域 | hcaptcha.com | proofup.com |
| 定價模式 | 免費增值、免費試用、需聯絡報價、免費 | 需聯絡報價 |
| 每月造訪次數 | 544.6萬 (5,446,045) | 0 (0) |
| 月流量變化量 | +85.83萬 (+18.7%) | -1728 (-100%) |
| 主要市場與市佔 | 🇺🇸 美國 (18%) | 🌐 全球 (—) |
| 每月直接造訪 | 304.56萬 | 0 |
| 使用者評分 | 4.1 | 4 |
| 支援平台 | 網站 | 網站 |

以隱私為先的網路機器人偵測與詐騙防護平台
多層偵測提供風險評分與近乎零誤判,並支援被動與無驗證碼模式。
以保護隱私、無需 PII 的訊號阻止交易詐騙、帳號盜用與多帳號濫用。
比簡訊 MFA 更安全且無計費詐騙風險的替代方案,同時簡化使用者體驗。
透過自適應學習建立自訂風險模型,並用合規的盲化訊號強化自有 ML。

在交出鑰匙前驗證收入、身分與文件
申請人透過 Plaid 連結銀行與薪資帳戶,收入直接從帳戶讀取,最可靠的路徑上沒有可偽造的文件。上傳文件的情況也會分析入帳頻率與實際收入。
身分證件正反面拍照,搭配即時自拍並以人臉辨識確認一致,在交鑰匙前攔下借用身分的情況。
上傳的 PDF 以位元層級解析,檢查隱藏文字層、中繼資料不一致、產生器指紋與事後編輯,找出肉眼看不到的證據。
每份申請給出五種判定之一(通過、附註意事項通過、非經常性、需人工複核、未通過),並附風險等級與觸發訊號。
免費 / 開源GPTZero is an AI detection platform for identifying machine-generated text. It combines a text detector with a Chrome extension, a plagiarism checker, writing-process verification, and educator-focused classroom tools.
免費 / 開源Undetectable AI is a web platform that scans text for AI fingerprints and rewrites flagged passages so they read like natural human writing. It bundles an AI detector, an AI humanizer and a growing set of media authenticity tools in a single dashboard.
免費 / 開源Undetectable AI is a web platform that scans text for AI fingerprints and rewrites flagged passages so they read like natural human writing. It bundles an AI detector, an AI humanizer and a growing set of media authenticity tools in a single dashboard.
專項更強一次掃描完成 AI 偵測、抄襲比對與內容品質評估

免費 / 開源Winston AI is an AI content detection suite that identifies text and images produced by generators like ChatGPT, Gemini, and Claude. Alongside its detector it offers plagiarism checking, an AI image and deepfake detector, writing feedback, and an API for embedding detection into other platforms.
免費 / 開源Winston AI is an AI content detection suite that identifies text and images produced by generators like ChatGPT, Gemini, and Claude. Alongside its detector it offers plagiarism checking, an AI image and deepfake detector, writing feedback, and an API for embedding detection into other platforms.
專項更強Delivers endpoint security and data erasure tools, but lacks web-based bot detection and challenge features.
專項更強Delivers endpoint security and data erasure tools, but lacks web-based bot detection and challenge features.

專項更強Monitors SaaS applications for data loss prevention, but does not offer public-facing bot mitigation or CAPTCHA widgets.
以 AI 進行證件掃描、辨識與身分證明
生物辨識身分驗證與 AI 遠端監考平台