for Atom and RSS and KML
It looks like this is a web page, not a feed. I looked for a feed associated with this page, but couldn't find one. Please enter the address of your feed to validate.
<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="360"></head><body><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "leetcode.com",cType: 'managed',cRay: '93abfd998adbc95c',cH: 'HTHekvJ_PcWWAXAoyEwdnvGF0HyuqwFvLXuUE6aXK1Y-1746403572-1.2.1.1-3cw9xPP50mR5wykQPwnBbkZe7EYp.DcrRDo_m.5AT96x_PlSpCGaismihN1RTyau',cUPMDTk: "\/u\/laravpfewtxi\/?__cf_chl_tk=0PEJ4DvHe6NL5qWe.ISdC5KdfbnTw_VpvCSt6kk_d1U-1746403572-1.0.1.1-JDECOFrdOtTkekYulsNPKSpN9BO9PB97VZXD_jGi9z0",cFPWv: 'g',cITimeS: '1746403572',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "unsupported_browser_beacon",fa: "\/u\/laravpfewtxi\/?__cf_chl_f_tk=0PEJ4DvHe6NL5qWe.ISdC5KdfbnTw_VpvCSt6kk_d1U-1746403572-1.0.1.1-JDECOFrdOtTkekYulsNPKSpN9BO9PB97VZXD_jGi9z0",md: "U1eRUb1mvgWUOrSohHmLhZaCQmZxxWW8ag_rNpH7IzU-1746403572-1.2.1.1-bTWyj43TujZpEijGzHL1Fdys_caj1LF6fpFcaEcAyo4tsK1WAeohcMUTzx9FmfvQQEiLTshmULlfOY9SfYCpVDM_KuX7QH4UQTOVEKR19U9AcUPEAdzjqQ3JkQh3I4JLCUwqV8b9soaFgbUrhIUOx.IpXqq0oSjOWzOXIiLBriasj8X81IeRduRJEu4cCvv9gu.fl3Sx0Yyq3cvk4zMpEIZ5WUK6t4VSqG7xpB78j8HY9bhIrWcZLTc0ybgpe3MhZCYojnS.JO7fm8au34dKPwZ6nb8Ne8aBlUyXALYVDp8jzCGOrSiJRC_xnIX95nERbGy8Pd_gHo2CYvNYWMyP4_O2n.TcsrF7dzVn0vf9SAlYf3XwaKlzCnb6EBF06F6lzkLgFO0571beSrOZwW82Vn0neD99KKAtXriEwA4OPlmHhvr59gKB1WBnuVZ2XGO5fysOZSqTqWTNruHStYKMpqwegIZbl4EuPMmdURCXSAIcdRBNhA3LJda16e8wEvxk0AsaTncT0AcvO0UUT_ARfOunTBQKHG4ChpvyU2chD5bQoIpvydJGDNYneVpBaUHVNhWkZZC.b4NqW1KcJ93j3zrtlzkbJW8PT5GrYD0ej2apRdU4xpYK6f9FMjh8b1dsNlZ4Y3.YwrQ3k.lpz.GlFlcrwhtnyXC6..2kDyVJgOfkwpzRm4QB_WD.CYrww4_i4d2r5dSDbOYDZISQ6p8TXQu2hDAY53TJhR8Z5lZxyTSwv2E3OYve8wMCw02OYrBd1_DH7q7dOOM9iPnqwLfFhzfCoipmO9O6h7ir1kHqov5HJa0ih58qZ38CcFXhtKyskly2i1ibKgq9jioJlVKc1iJ_l3ZwZpUqXwFl2xJz7QzZRFRpwW4QJU2BMdKKwGxU23t7L6XSs13Lum3e28BOVAaaZm7FnQznYOVB_dxbIeG93dP3yoZKwdCTpv.04TyNvG3XS1xnvVIFmP_7S3v_3tRL_nKvjEtP7aZqj1c8eOO1p0i.O9d3dtn._916ZPJBYkf86xubmRalEu8d9KoE2Q",mdrd: "PfzspfkKytuhHcQaVU.9xIbeGRZUuV0Em_3VeTaaeT8-1746403572-1.2.1.1-i7gK7xvVo3EzcUdQEH.qkzRfuBoZMmdUH4QpoCpfj.FSGsvwMhPTL8kgwVeL8YUqF8gTfBwseY2aLNSKy0otEFEnDH5EJxCxsmzxbAkfwe0GCl0R.9hCXa_d7jwijIBrjor65ixExBA0e4bsoEHNJtU7Da_XxbGoF1Si6rvY0QlCsV0fSF6DLb7t.Skv8nYeztfhV91Gbn_JRqn4bTUWK4UmqzpTDbg27FRMTbJ3qRmiubbEfJGyQZT_QnMp05GQhbu91PNtfLaLweeEYFjSgwJCr8H1H6OWGq3H5HNlYuqRZzMp_MbJ4SZA5KHOEMqdVPK1kP5xMFZrf7qvyXsqa92HimGJW49t0BywfwhpueGzMvjA_pMdlKZ2MbCZADWrJUFLWbngJBtelKlLC9mh5iuIpnqQvV9ySo0vk2cLywbFTahMome7UvhbKox4Q3cQqWDSyQ5tU2QC18WHTNyE2.5RW_uZfJZu7oMgg.zMpJB.OWV1Ksza5f93j1KjaX6MG2JQYWD3avwEM55nVR4iAWyjFlii2anNe5ZFxfn.CbSDQUjyjyDWfWX5J.12DegCDvLGNC1Al40tG2eMo8Ct9Lw0e47H3P8S1w7TqRxMYVosBfP5qt5fKD5i5JYnm3Jg8VDejLEO9iZaSnpFBkDSfTjhAQ3G4OoajiyxFXNAVEjsAw0_iFPf.wl15tj0FNTD2qBo8UlGAlffqMV.nclMf8HsOoChrDm8D9lV6uuSfSGkucajL3zDJtNJOFdDOqY_kUt7hkySNdMi7yv_JnYv2WoYX4A6v6HMjFJDORQ.jFrXnD0zoqFtMEWSv9CgbqS5TB_TMHYFjNfTLZ1FvciCp_p4NWjxME_cO8plrLu3pIx1qRLXKGmUtiX144c5pqjUNOjScfDriiWKPRDcw5FPRbfDMoF_YRPA_FSORcBnH1AyAzxxLJgsYgrgNqMBQYz.v.NG4BjI4V0NxjgkQ1KRlJjDpEQeOsItBlG.Hc96qbE6QX3bnWW4JeDmRu2EYk2bkHAqPYw_YYhoYolcmdLyvkLRj6FmVW9RLG4587OsV89LQSeLuDNcVSLVf1X_HJQqbi.uuGxbLEN2D_vUe.3wQMElwJvpdv2SxbefKFl15LGdLamdep1ObJipQValXiKCpp0QuMuVkxkMviDqFGT48qMzpJc3ctHgq2j70aGgxccasrxHIglEFwZtA2OUkMiBwnyn2sm9VuuBELApF0PvU.2Z0aESoxJ65QBCPWOY4pl4QrO_shgmhxaP2BhL_Fo3XRx0AMEa96qM5wI.lz1Qm00TIbI9R5_vtD2016stzDdg_cSfwLK7NJ_SnLGZNsYKOQzB.FF9_zv3fzD3itEvknLXNfKPE5KKA8sI7HThGHVUzpVloa4ve4weYuvjF9r2w9pzMRAK8jutjvmdxCtJvjqrkmcDl1rl.Jf3lrzNMwYB1GX94BH7IU.XQgyfXn4Caw7kcPOd_6nmF4IukKdQvVQ8majoXUbQr8jyyPNn1KUJCRJF.FmxKvQ2Pnfwvx5BWuHk8L7BWa9k7pVdRwLVyyfeUmTUu0fsh.AWLoDsY0oD51BxfXb.UiKVGTWPj.l0_Neoz5sqq1GIGcVQJk7OmkgweYpb7v_mLQSAHMVzyTe5AxHjUCITSw_DU0C94klEA4NnYI1uuZdG8gPAIVlMB0YR.lylxTLDVoOUZrnwRYYDnTvTZSzqvsV_idBBTrkvr3uXElxgy38tS6tH1a0URBmncLqB_vy3qyGqD98B4Co6fUNh9MLnWKXYKiEnza5PobYBDsamIpPowPFEZ9IYM94xutF.6RhrWvemYqstqaR2HPGGJlbW6smu0mH0cJi2"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=93abfd998adbc95c';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/u\/laravpfewtxi\/?__cf_chl_rt_tk=0PEJ4DvHe6NL5qWe.ISdC5KdfbnTw_VpvCSt6kk_d1U-1746403572-1.0.1.1-JDECOFrdOtTkekYulsNPKSpN9BO9PB97VZXD_jGi9z0" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>
Home · About · News · Docs · Terms