[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["難以理解","hardToUnderstand","thumb-down"],["資訊或程式碼範例有誤","incorrectInformationOrSampleCode","thumb-down"],["缺少我需要的資訊/範例","missingTheInformationSamplesINeed","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],[],[],[],null,["# How-to guides\n\nWeb Risk\n--------\n\n- [### Using the Lookup API\n Discover how the Lookup API lets your client applications send requests to the Web Risk servers to check if URLs are included on any of the Web Risk lists.](/web-risk/docs/lookup-api)\n- [### Using the Update API\n Learn how the Update API lets your client applications download hashed versions of the Web Risk lists for storage in a local database.](/web-risk/docs/update-api)\n- [### Hashing URLs\n Discover how the Web Risk lists consist of variable length SHA256 hashes. To check a URL against a Web Risk list, clients must first compute the hash prefix of that URL.](/web-risk/docs/urls-hashing)"]]
