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.

Source: https://lgf90d.mit-edu.top/post/1405923678

  1. <!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="390"></head><body class="no-js"><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: "lgf90d.mit-edu.top",cType: 'managed',cRay: '90f4956f6e7a1781',cH: 't8a8Y8A0ctzfTTuGPDsa1cKiYUKzS22jl4JIXSRrqJY-1739111702-1.2.1.1-Xv4hKX8cUbaHIjYVgKsdgCvOSfe.dtW_J.avT8pNkaBWJZI5Vi0ovy3b8ZIogu8y',cUPMDTk: "\/post\/1405923678?__cf_chl_tk=idMS8zC9SMHkYmjS0jhQ1UUSCpwbZZhFyUPxckzsg4A-1739111702-1.0.1.1-4MOrmLCsLfu4OHWeoIvTLTAyDR1RRet2VbCla5Qm_qU",cFPWv: 'g',cITimeS: '1739111702',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1405923678?__cf_chl_f_tk=idMS8zC9SMHkYmjS0jhQ1UUSCpwbZZhFyUPxckzsg4A-1739111702-1.0.1.1-4MOrmLCsLfu4OHWeoIvTLTAyDR1RRet2VbCla5Qm_qU",md: "BxoiUGjfecmGY3e7DISrYhPGVmKKL_RJspyWmE63X9E-1739111702-1.2.1.1-v.A3PJy4ZUewcUxjSddTuYSUt3vIRd6WBiV1XB0O05ydY8zdlPIMiTFzJG02cgEUyC8.y3Wvqykflod58U8zyod_sc1cHKAuJRy9DX5nnJZrcOb33BSC77ZILHwfYN5TLqkjV.e7jz42wX_m6zE1saHmUTyorcwQNgm09mnC0FM5NYsdnWi_S0F.LGA0CvsWwqFgrQYAOxZjtph8bp1KqzXGlqJ5P4iwBp2OMfRSjFrZ0uiWYrb31uQK58wr_BtMETNy.Eg.3kQGIGqskQrsRuKGDU_fkpJw80q9wZDmG2zrtgEgU5bcgHp_Azo9Lg.3W3d78Gbesc1Mh2L7fxsWBg.0hgRwLGtKZ4ITy6_QcTYN8EgU3VkJ2Ieh4e1jVDgx0mSOdDQuRy1nQN32oHVeGidR.J.5HEL7CD0dYIhFAq2hsfYf4rDKqMkwoVBvcUvZKBJxaL._YQHK6kaaGSSj2xr1d9UHiM9LUpGfSm2fSQUJyZA2UWpU7Ahjel2sLRgqQKwchEUX8EQFhfSwZiMBBxPu8OTVVksYaQvPyfoLQQimAzctjTDFWprVFjgGtODkaF_M1sO5JzD5w6hTvp__qvDaQElBKvHz8KFUpT4pQt9E5CF_B1ffh96md1LwJIZiIM6MXwyCDpW1eQ5Z9wMwCVX.vYxXXxOiHZyiDjem55vJF5PfBvido7keBxSwfobb6lL8ZeHQmJcalaRR5ulJ1d8MM1rhKKXlOGXGHV519VwjXYEEVl8r_7OJEIO40ZDj5apPM7WmHHpvUBbkzLAhcoTVLUPnQfll78knMTF_i14G.VUPEzw8atBvzkSqGi866wdkOMahxNvoul8niAnpRSEjJXnGb45QU4BJgAK.6Fd.uNHS.5nGY.x3V1l0PIgQPjtA58cb5ZbuGwOld76O0MuPS9ygu.0Qv9VNc1N352GCepGseOBJMMMJ_AK.FzhGMNzh78paIvJ4m1.tdf_v9O8d4jJMQjYU.0EK.1fF1f7DKSIOHNsCT3KqVFzxC.mjyA6hMSLVWnXjJG.Cgu0jvl_51G11Reeiq.xy8zyMvyCy5qj9VkJAolbtHrbx2XqqOEbxdAf02aVHCZLTIC35AwPqfLyJHjOHaAgOBwFB7c0dHYBb14scsjhAtOFZlIwBfrscIiBoHdvvP1MeQYEbv1yYIgh4r9l5GcfkTD5_wGneFmD6sPOloSw7Z0c8_6Wn26wjx.MlcWEUGBX60.IM0u1A.AegSPnH5Vmul4glCRL_HSCzfooHeDJltjexDx3kbE.j1ouOqgHYJXLIwqjMD5LEfvgcrjrCZl3p6WUOhPlhp4sGSnqdC9uutE7oLHXOj.91n8Oa3MhURtVeE2FcuO9kVi__7GGjrM6FxcRKe1ZtXrcg2VID4I6iWW0F90I8QNuRLiQVzrEFHzEW0S1wfx.0ciPA7LJJQJ8LZL8aDT2Z6Csg3P.MVgzaRzRpWrzZT_i.rKyOdDS541co.RecvmV_JP9delL0zf5OSOVwyhkU30RMfBNhhHfwM.9htDhjN2gTOArpIDpMAskS76aF65xQ8QHTnE536Dezv681hTJWyQbX2xJgisxu2sLz_BBIZpFkg7u7CplWRQQi9eHTvryexoiJTjkQfKyuUaGpTrRooMXVd4rJtScyFQzqLvuiEMiVhgQ21.KevRPEzO2NtmLqNZkiTr7t1AS3uVAZmZHXnQuCc6RYUjwhkxzcV1D6nPXS23.Uhr450oLsmnQVSWIEf1qT32ylXISRdXtw12aj7ghtY5sV.jv4ZpqVIGqZAWtnIJxI_RuSS3s.WLCBA9r5VQ2s5xtstE9DsidxdvKZ_mZl1FGsiAIuqa.IcQ2zYdoEQZ5THew3ArDvyAHUQ2KIas1mt3T7F5IW827HZrlLHYYV3oVy_8IRKVcJ1zSSwf.EeCnICNO2.p9SgvMdLXAt3uue3YjKhmx8wNExqu9ztQRhxOpvC7RPxK1KF3GPibemB_Z4jEtg8AN4ylTiePYFpiKtTV9bigHKQBN9eb.upnpSt4wkDz9iqVUdSzWunldH07UJUVRhXVGBsFTWY7MLdxxwebEPwYo4m8qrtPv1pj9Axf_XG9kWUTlWxYtW.3AV2uJ.G_z3_DkKBpSL77Br4DiyJI1mOb4wuKKYA3ycFr6e2bBaKifNW_B.KRGGqty7rHAZLJbG4Gi4DXlkqyH2OD399ohy0uplJu_MmYA",mdrd: "xDfcS7kY0E6M4jBIVDP54Kh0f8cFszh9wEQKFJzScMU-1739111702-1.2.1.1-gQCrHYa9eZPwska7d2oNAI6Xz4Z1BV7LRrvnFQCO8fSk0eiSDpTGVFEYFkQx.n4qPCvO8FyjxjmUmTbHklMY09e6JeGK1feZ04sMzp25cs_gYO_WS9LP94LyHtjs5m2MulDshEX0tCSNqv5T2dUYj1pJKw8wSiu68DB6rbp0Cp.X4M95X1Pz8SQtXLsRmS9FJ07YqfM67WEsuqP17ArY9keStkqQXKwpT1DjZwzt0LK3VzQK0W3ooJPse39iRvbuBoss5nnfuNrU6smXKBIllYhAq6J_OvdHmP2VRtwFWQ3T_2guRRwjt1X3EpYoxnfZ1S2fMPWK2EQcSnmDl7SWDPApWRjqGebDF_EJwTnqNQqf6MUYp88hFojZhBJSQB27ePy1MCoSWQSP5dPgOGJ8HcmE1k4ulLsdICzGf2eYH.cSL1etrBo338FI2hgwX9sZXhPBiQaGaYywtHUuyqVtNNBu64BD8VXs2IcFs2PgcabzP23_tnE0u1PqXgLY7eiNLIb893SlKtqbZUEgrRyZwwERigOEHWO0Rfq8J2ddwuZnc0aM.jhX0HbTNb6_PTV4jM0Hx09JSmjzBwfb2rWlV2iFmZvYFcPRt1HUobAhX6ObK3cUSGVdrL_B95PWMaEOpvTTsIg4zXNo2wk42io38IbKJ3LINH70qoS.P18Yd3oZgn0lMnpiYam.w6IM6IAl5pYIcbksQa3U8VzGw_SWMxh0zV1ysDvp.2fzSkVRhYdbd3r_OeOKS482zJhgRqwB.5gIXLOcYpx.sFgj5o4qqIDLe2I8ox732abT9nsJHo9Vl44Je3UT5wCZ1rwk7w8zAT2UHn_KUyEEEGPZ.OEBHORq1df0AC_5HkVGAaydBqnZvAAH_h2yWS_ZKtfR9Y1emj0up_uSa3G3DnTdGvIAeLi7zCF7ZkdR0UuDh_wkkGReeyLNJMz2D1HoCozk34OxH3SOT8pTCC.leejhw8EW8saSSDi8MeU8MFDc1AkiyKRfveO8VDvVbUSgjoK8MxsrN5hYZTIn7YTYo0R_oXI.LQdPLFsfVX_c.vCATvxef8Y.JnqgCIwOuHJBP7EYNjGwDJ4kEdaXfApMudLNZ_L2OOYKrCvubl6s429uTLAJVanQyxYhK_GQED_ZdK41spaVVQn.L92z4VUMSCwYIj1sWkRP0DANO2oC1JyMwuyrmExI9hL1cP65vABc5jMazVP6lVE.8ULnWUG9PXesF7Kz9tcXM59bXDrZ_2zE_WX7AxQUxj8MBMiuv_wcoGdumXO8c_tKc9V48NfLjUvTRqPbraYsksokREOJFnnMcJPhuE403y9_dbT_FiyUxmJGMT9f6VgwHWOAWO.eAjBftGnVXOIxY15lsVKQJoEM5Q_nuJOLjwin0T6rvNTHg1DdTxC5fHrAuOzInB7zPGP7QBXwZzE0vr7cjlMLtWPrilrCGxpUhGLjl573yLzTpcDXrWD5zd6R2X0oXvmA1yNisyfCFQjtudkNq3m9YuvLZfz_FtrUiIpXoF8uHkuniy36VOR7bEuNioqkW3oidgUQRETU1QYU_5Iv77raiImq2X.872tPgwTozR7G1.li1cfRoe5OMc8ypqShGYfmsv3gb1zI9PQpAXR7NqqPMMwxeHQ8BPRMA2HwqGL0sTARTzhWw8yUwvAlenGIqpW.KMPc8rKSBy81W2lAl1rQsiER2L2la.yFIzvFA0XtCZYJ0d2p53sn2OfAjBAn1zLtja3KX.55grGyU3cmdH8.yEgyxzH.nGppNOLdfF0PlqmbAbAFrwCq"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f4956f6e7a1781';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, "\/post\/1405923678?__cf_chl_rt_tk=idMS8zC9SMHkYmjS0jhQ1UUSCpwbZZhFyUPxckzsg4A-1739111702-1.0.1.1-4MOrmLCsLfu4OHWeoIvTLTAyDR1RRet2VbCla5Qm_qU" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>
Copyright © 2002-9 Sam Ruby, Mark Pilgrim, Joseph Walton, and Phil Ringnalda