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: '94000f020c9ec9af',cH: 'sjf_D3kve0YahbkcL0PX87Wu9bIxFlmEDMz_mhRsUbA-1747285089-1.2.1.1-0JqXzJqy7_KrNr4.sk.rssA3.mhGmwEKS2uJMefAmKJLW1QuTouLk6Nt8L87kifK',cUPMDTk: "\/u\/uxhtqknzxixf\/?__cf_chl_tk=_0pIoxZ8715Ci.fUUEAC2lolrKQCzFeDZ4HTBhze5OE-1747285089-1.0.1.1-s8NVdDBsr6OADSniDx.nO_LWC40zXiZwJs1wUmfXb7E",cFPWv: 'g',cITimeS: '1747285089',cTplC: 0,cTplV: 5,cTplB: 'cf',fa: "\/u\/uxhtqknzxixf\/?__cf_chl_f_tk=_0pIoxZ8715Ci.fUUEAC2lolrKQCzFeDZ4HTBhze5OE-1747285089-1.0.1.1-s8NVdDBsr6OADSniDx.nO_LWC40zXiZwJs1wUmfXb7E",md: "PC4WAqhQL2C4TESDvpH9KVJ66m_92K8d7aFCDCdiiYo-1747285089-1.2.1.1-eU2hzJT.RPisAXD4qHCD6TDr_Wk_Qum.ZTjVjyxZNUzqLJ7azJf8zlBGXJRY_TLT1PyQDQymC2M9d3O4.WqM5nGcYsupda3j23ajKda_XTsdy7a8VkdkgXQS3Br4FpGfOPYBCAQ3UyC8XU28.atin8qGq6JmxGBGWaSraF209rH1Xv7R0X7.Qsx7um9lXW9lyZIyFrSD_YlPhM4LCY4n7dxBh3BjMI388fkHjiDCtVVLq4Zkm4.YQETkgtSsN6vrtwrBWgaWZuj6L90UwtQMwfq2me6Sxzc5qa1_DDBHw8hsvRS3wRhX9aYrU7vb_K6bdjVpn5z2HDqZuP6zq6lAlAMILF65ACTzEm081JURcSPNSbPUFBwuoyOXIg0AzkAzfFAWKaZVhRDBlrs4o9c5xJmD7bIgRrkwOb5ppPdE96MXwXfHMYvdydBcMMItkp9EUPfJ36RUAb36hDTwDwTzg6nzXqkhno6dZsWEJ8HMMa7pJ3SbUpNYvfajvxj_FqGDEeaoMn7kPKx9MIKq5MMa_BDmU6DYFjjztP87shGGGHZg9HOlQxNIU__rR5bDXU4eeSAVLyIG7bC3dDtCuC05Bo4mXrlpS8qMdlsxzsN8BGIHGwLm8Pd5KeZDJoTuh7dzymuy27IWgGBVGVuijeDkwRdn79z9yJWSpOS2dYqbhglrVzxaaRKiPt5P35ifT_f69GNXGte2C4jIO.4oI_GIyLCPTjDe3jRtFk5iynT4BqmvdsRIeeIlGrWXuRCxUKRK6_0NiHUf2FodFqo3l3IhtRAiyAlqM2mhzXgWM95v8iEg430bFZ4LNeVU1Nj1c3oE6CBEQs3urFUp16ScGwizNmx092lCMM.ZBz_C.JPJqAtMqB0Wn3Ma8khVydp2AGL5suO7S0A9hVfhY3UN2zXO.axiYl7aM5s0Ap0rpEuwgCM",mdrd: ".nzNKju.iuQzeE7kICB.AUI4g2Wv9BmXmkj0b9fEltw-1747285089-1.2.1.1-ZHddo9xsRdOEzbgQHgDyKsGyPX_y8D8loBZCYTvUQE8V62YoN.FKV3Mj_JDj.UKxPYuPxGyYTrAIRGoIr4Gyp3u.N2F7c7dUyKBR74fNYMSh68k_PHzmOOAUjvziEBsQNQfCT5YbEpqiD50Cln_Age4T_1LSkEM_BnlhWGUFmxTQpYXFyslmd.wrSkzEmKiBi.1n61IqR_L3mHOj9xZ2yUxN_dw2iVORu3HDsFMKBpGLHVOqfpA615k4teWL7qZBP6WHGF09KXfCUQSYLu0ADrKrVCBkvH0s4VZA..OoWyr0zmosoV0YRA8yyv4vV1GBXeLETDBqrowpGk7SC62mgLCMcN.1L0tzZc5.Jvybh3MaNdzT.i2Ezts6bYASScm1l52OYdRorNOJ4WzuAQ2lezwyf0NcKy9jDCUElcsUy9CHGAOXJvPvITOdtLlg7Bip_TQZk3MV74jeaWAWdE4apd8owglc8fqnTixbx9Kj9qeKi24L44JUxcN_0aO1qNxPB61YXmT1BgJVIGdtNI_jEji4kwQh4_gvtaTMdTnPd_1bi2PmHQuyrQ_VjMdeoIDM6HD7898wpPKwJhtTH7I6c9eOzRcWmTt_XND5UFNHcfmYym0sxNvKdsO18KshvCbngPbLO6JQ3DMZy0niKj9bWPZgB_DcpSl4GRRTdXpvz9PPqGNfezcZvVKzFlNRsj_nH4WtaueA4d6wQeZwHh.cahjJrL10jQ5DzuwUBrGVn6HVKCQmFvuFeznLwylI7mNSCOTeuZO6GYay.4WlVjnZyBd04YNi_hA2OIjJs1FQhTNaaDHGX.Ty7NzlYGQF4rYY6wOSrbxSy7ae48ynlflRpnuIujlx6QxxyAD5AEWGwqoW.Qc8L9QzTlA3vvIY78iQIpQ8SgYgCeF5IXLUxSiUJm_z4dHKNhqxKcLxgK.3w.0itY342wm5PDgUzYlUbUVvIkhTjVunRWUaQMhFOpMZB3vw3aj8w0mS7bNPb2z5CjYBT0GGYHCrkQnU8azX7yAQorVGpp4YdgTQ1s2c.sAw0xDiXIRicIuE7EbDnZ8fVrtkl_kyO.ZzDjBcl_0_s7oRTi6gtqCJXbk6d10Q8OIn4GXVpVq9FFS.dvdmF27sZME11WTegcCdHTpgRmUqT17SbA5y8XwLOcNWbHh97gDO6m1qvyV19qsA5oOwjVqOLU2uRwuG.RuW4z8Xx9qLiMWs5ZTvQRXld7ZsUt8eb_TPaxgC8wfS90FD6T5tJDiHhmQYyZ3N.lFrPDZCY49CTM3H9NLPkVz0c.y3sPaGaSqvYbjoGAQThSOoEsu_b_xwMD4IjHYKcskidChcgAYJyqb8f7iizAwU.FCPlbVrW0xazs6a_.otSfvJhKNVIbXKxkJiIapMyXFcUGTuxibqtoLAG.Shy__eM6gDURm1DbvY0HMSAE.llDlxjegBVg1fPcJu4k3EUWYUT1hR.MbuODjjfW20TlP4DCGC5b9FgDLJBs5wYFaTO0vaypxjTzYxVNpmMqX8sdsSXUGinUS9zIgi4LsZ060pLbm5ZfneaeB9qRkYV1I3x4VatmqxYA7BvrHZnPa9oSo5AwOztpbbNCE8fHC9LS.X8vE2b2DWmSGD1iFpaCbONgV715NujctBKRWVSZVeNpTYAzfOW2QAGNe_3vM6xiESal7xndr28WjDHS6OW0M69WTvJME9GtDe.sUVt6i3vq6tBD9CGZqOq73QDw1._0tNguXmit3I8w6Ct8KB5xrE92I3kshJ6Nur4inJIRBeBvYbIsHGoERUNAqzfw7tnaHbytnehc_12Z0uQkFGkB7adR7xi4aO8QpKd8lvcOtUOLN9HhFA7RVzFP64aOm7ciMHwz_mlwRt_4hfNA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=94000f020c9ec9af';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\/uxhtqknzxixf\/?__cf_chl_rt_tk=_0pIoxZ8715Ci.fUUEAC2lolrKQCzFeDZ4HTBhze5OE-1747285089-1.0.1.1-s8NVdDBsr6OADSniDx.nO_LWC40zXiZwJs1wUmfXb7E" + 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
