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;padding-left:1.5rem;max-width:60rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{line-height:2.25rem;font-size:1.5rem;font-weight:500}@media (width <= 720px){.h2{line-height:1.5rem;font-size:1.25rem}}#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: '96b1eefb0f04174d',cH: 'UQ6Q3x37t8ghtq2BaYPYI.MrqUtiKYCMSSMqhZubJ84-1754518952-1.2.1.1-HjMS584JAiwKAlrOtp.FmgcICH6P6gycfap_5JjiX7PBoK2U3F3gGIOXaMi5fgp2',cUPMDTk:"\/u\/bhomxdxwuc\/?__cf_chl_tk=uyPTX6T2U3bqORGcjeZ3D0d9CxKIHQZspVOYASHPzNA-1754518952-1.0.1.1-EzqHIr0H1CTE5k.ANWaotoJ086Imil7AYgb5tYFp.bo",cFPWv: 'b',cITimeS: '1754518952',cTplC:0,cTplV:5,cTplB: 'cf',fa:"\/u\/bhomxdxwuc\/?__cf_chl_f_tk=uyPTX6T2U3bqORGcjeZ3D0d9CxKIHQZspVOYASHPzNA-1754518952-1.0.1.1-EzqHIr0H1CTE5k.ANWaotoJ086Imil7AYgb5tYFp.bo",md: 'rr40rcUEaU4UPZOI5CsUr0L26GJLIKcugwE2hTdqchg-1754518952-1.2.1.1-ofrD.Wy8RfKgv5Nk5FM4BaMt.OBTiy1kewNxWL3jFUJ052ayehElDY6UkBEvoWC5Sx41JqebiDJKNnHgtCP6ld.XOKUTtVsvH8.LuUlhclUHgMCnFVwX4RvVzBuqGZMrUAbVu7VLLBhauKRpPLgM.lwkjdM8Lu1hLitKlB2t28gPTsg.l2fh4fbZkHLGL4aLBICpNVF7F9iSY0lfRbOoWv1l3YDtFBb.xgoGO_4LWPXp8XiFPRsJl9SV_JqQZKYWwtbWQxRXFZbA9bCEjyAQrxCaVKuGlWDSX9czczsFlAaLwlAB7E0xUutfo3jbH9bGLwWsqpjp7BTIPWuIi_sjrbEbIUYxW60rM_I.Yv9_FBsrYsnWyD_aWfotIQLQ46opQdl6sh4oZzlSyoTjqzcsBj67mQuZwkltlXqdPA_XHL.SWB6We_RzQUU9DzHdIONWYyVzgM9NNAYVZNu4T60dlGyArNzCWMTAfRScE5k35DsOBuN_ZTtNaiEBuO3_NFpX8oYZapG5Xwlsh2vuL73T7.qNf3RbiH78OLpQFChjIkYvujA1nY3af9TeoL59NO_IpxPvH2OyTO2.iEJwUKEAR6zwfdmuOg1cOEe9lTe_1.9yNTjxNcViVnBmiOT972yt8etCqwQ4wvzrtym630rLb5yaGiVKXtaEq69Puk_YQOkAnDPq98S9Jnj06zZNeI.6KaiKCmaRY9yq7RYLUtPqqdW.971_O1Puaav.RQVp1BFuAszxekIJr2ir1Ot0rvnUweJd6TsGgeE9JByiNyLwro.LfQfKdDYxmAHtwRdnyBHEhefWJeXNuJoozGNiQtqtcI..mn_LS4wvCBongACIibBY5SjShB1E.cklWe1EfVCj8_kbyKVUdsKoy2tobaP0sw1SxiMtnmjh2vslO1sDl_.nMA1Ks8p53iD_.WRBz_Q',mdrd: 'xteAWtPDoYnTlZN4C_J9JN4BDdBPmQXOPIsjqhG3qVQ-1754518952-1.2.1.1-N7IhvxBKEmUB9fzawKoJeZy5KP2V0Hp6HCo4GMOZKqwayhNOEigthvnLhZ4DDCL1a7lwLj6dCvyL54y1M_RsXNABgQm4.BVqwD2usufRawhMyR2ZKQEPyAtPFc20OmJ_8xfQOVBzTDYimB8wTxpXMcHB5yOIhP_2dR57eMr6VbAHvdxzRQ3ocjxSWzS1I16DXmgMLeCVAcbchHZbazFfbKlMcnNFMqVt_3HaRX6sd9Un7RVsbzU_WiG_w5KvReJ_ULxonMHdGB9.9mtur4w4_nv2x_NrQBO9Xk3Zi_Db6_Fq3CigXpmXb3EV03vgJtFuVfhMNDPPRyVmwxzizIZgVRVncMLfRcNsqC2ZE_3_ncEVrQ3B1a144oOQ2NLhq6JUIYpjBi7xZwGk5lMN2KWMhMyTVqMozpu6VCg1u5awC8XjPjKbO6giXfDnlMlVb2cQeQ.kLNzMk8KBa4yzf2zlCfQACAD70aQmeK7lEEirNmk9Wy6DrxWtJSMJlYgkib1rHbVD9nbtiQ1RevOfwUmM5bM6wOLeoY8tq896szHQSVRXX2YhZ.2dPRmGFbq1QpYl_jW2ljsdMbuQlpuuJWsnJdvVAZQqLkRdVV6o8RGGApG6tAi2dPfz7amYwC8z2z6Z7l5wpm9MpBBm_4XZAbZ1lX31KtFEdXDjlT2FF98yWsZkaSuis1cNAJcTymn4Hm_8wHSjoqZXmRhmmfmtAlfVf_J9uSrVE2yVlvlnUmB5yyEJggDN7Ooggij8ebaHDh_P8vgynwxZvutO8olSypYHnZxuoPRFDDricJy7dQBqt544iR9LhkIvajpoTqR_dcEKZZo5VYktZ6zbXOSBzfvv9_OqptUhwTuXty.btNJmoNes6l2AChqcXy0zPoXX00nDf_pY4WVFyfFkIakOryDX6TIMG0maePZ6EbLd32_bhuy4wh3ilYztaQCMCuEgJ34COxj7NMOenXU5NJZqO3Ng.nx6wctyI0uk3QYZ_iy2xeZMKGXeTO2HP2AP0yHzRslSx6jydznhf9QQhbYd8L64mS3aDrVKvX7vJe4kliR5RaBGppNT_cC_6ye6ApYLCtuh6MvnNauM6oRbVXxjmC7sHthzTyqrVgEtgYv12U9jBwUl7YRGlzyiA5C9s1eJE1qZaxAGM8N2DlKw61HezMkNTts1piU.dWIs5KkBfIdL_czSf.8RERimtrvAM8vOPYHPHggIU.WFhLoIQ0b3t9Pe54JNJfvw7mPAZ4UhIXZH.QqYRrp8tXNcPi0HQ9N9tstjp_X_Q9rAj0xvAJx3BQBLQ9LGoMKAK6jPPkgnOuQkJ0okvN0_KkHT4yhXgmiy8XAIlg8VT2ObJzKUBNGah3pvHLSc.Ir7yJC2S2aFWDu_LvW4p3T9Erli6MqJDNnEH74HTymDe4ew4KGdm8gz4KbgQyc7JKtbWBJKq7M5tKNkiJly7Jk_hbOwhYeqKkb3mEfhQFmsR28P0kHcWQQGMtF3urNNk6kO5PfJHrxTdFo8muE5p.uzx6qKrEatU78py_Z0xkuTnm6lhHSQj.C0JxqAFS9ZkA3WywEojqVka.WJLCRdtmA0NoLuzTz1KgXEZ7m14VTj4SICKQTSBzpEOYxghXBCBBkA2byHDDcuBDefgFVjup7IpNXevOiSQwXcThOzaNLwkucC4G4EOo9FwskdXjz9KURBnJy3PXSmmTM_KtWDNl4sLS98vs7OpELzcBzfgP5jRbFBhn19WnIPADJdf4gsdD4Bnp0uIyrEOrliV47F9FPjGfr0sgaZ0pDjOPZ5RLif7xwh04JLdL0QrXh0xLX8iiGkrXfMmE4AhML8GS1IK0TftFK0bnSToaIsq6vEOrHbUGHjkd7aBJpdoekRVQ',};var a = document.createElement('script');a.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=96b1eefb0f04174d';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\/bhomxdxwuc\/?__cf_chl_rt_tk=uyPTX6T2U3bqORGcjeZ3D0d9CxKIHQZspVOYASHPzNA-1754518952-1.0.1.1-EzqHIr0H1CTE5k.ANWaotoJ086Imil7AYgb5tYFp.bo"+ window._cf_chl_opt.cOgUHash);a.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(a);}());</script></body></html>
Home · About · News · Docs · Terms
