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://blog-afft2ofii.mit-edu.top/post/1690735842

  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: "blog-afft2ofii.mit-edu.top",cType: 'managed',cRay: '910aa78abfbdc9ab',cH: 'Gcc_pbVcThggPoUUWS7xt_3QnjkD2Y6cBBHTSd._yHs-1739343131-1.2.1.1-8vJJeysXXIIU.UybCOrzMx96ZBqUJ3n6MshbGOSDawL_2fTjGMWrZ3jJBXwpv0I6',cUPMDTk: "\/post\/1690735842?__cf_chl_tk=cpS.4zMxmKTbm1yovAxWpZShgdMSzqN37UugUBeXYXQ-1739343131-1.0.1.1-6mETIJf8bx9xstAV7YXDtXWQg_hijICX5NmczFEa9Dk",cFPWv: 'g',cITimeS: '1739343131',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1690735842?__cf_chl_f_tk=cpS.4zMxmKTbm1yovAxWpZShgdMSzqN37UugUBeXYXQ-1739343131-1.0.1.1-6mETIJf8bx9xstAV7YXDtXWQg_hijICX5NmczFEa9Dk",md: "mIVMSouvwfvStozlXl.LxnGYMwhhyUGvA4ijzz7KTTk-1739343131-1.2.1.1-7JAE049HBapcXI7VhtAh6LoxEqYlGS8qreiIjHfPfDGeyPtg3Ex5JpDNZKbvKGwcPdBNHoXCvJfDF9GPqExJwtZ6minlAZCJUwta0VDj38gSLh9k0zKWjX_uVtn.sHE5V6ctiADOH7QHNBdJ89O1lUoMiZU8FOTZt2ae4FKpnIYC_rLfion3bX65NnG48VgPUIMtdV6MUw6QDzdFec7jZwfWptrhhSwZExS.8rvAY4o6S9.S9SPeAU.ycN7SvbyrytgszTKhe6nU96vG_osVu8wgfMts4xLgLBMFHNMWJC3I1VipEe0SSVo8GKh2VPOvIPzum4D.5C9yqWx4TsU64_ptg1fojravMwLlyB4_1nRptJ8LexWxF5fwRVqTU4UOicHjdE5BsxR5zvbjE2pEOBMWlJe67mDOAf_G8VTRp5mD_BLjJZh2dKqjr7hHD7ogbJLxLrvQJ363fwN5MrARcZAVatuPRSBJmHC0OpoZOsZHDNqZQfvsf4wFLldEHcDoVPBWanV2bQaFXS_oklT0ENJisiRgvDZOUsfZGO1d1tCkxdz2FhPrFi07JB4QdbY68xiT6CPwuF8e_JmZS6JdBywn6TdAdhr3_8OhlBvyhAYkZcCOT7gXChCG2d7uPVSZmfnCbcL.sxqgk1xU7zFl6I.CgRxmme..kEtVmpLZ2vsja5.6KXxuWs4N.CF9q_S6ZNHMvPKP7jTzWKJxtrrDoEmDIWI4wtlXc8BDIkF.oQFUQY5gdUi121KNQoDP75LwBPjh4tS_NJsZyxF_R5bZIMBDF7EmXoml6tIEPjPJNEHtpaf5LLcfQpVA86CSx1M1zesnfF6VWBzTxdalOD48vMD5hUZ0WU0dMyUO4GN5kj9DCi_2_2rQ_wX8rPEyCpyGxpWwjoa83YzT1Vi55EaVs_cPgu6.TruRx8zXo_JKxNYglCDULvNvsSOjLTL_w9coq8pmw2cCc4xBNS42EAbhdD0UwGBnHEfBqhToGxcCCJYsUk9Cxk0MK7sfM1lEMYB2poj2QGF.8_Sypj_9Q0b5PhVTEmv4iyEZSqksDKSq5XJZYkLgFBHWnQkdxoWrkbb7ngV2batt.1oGbQDH3D12SlPlchGkJlLWpCjVCWETEm.HpADOAHqmVmaCh1Nnfppp64xTOcEfrPBKId.wuUi68jPfClILfUFyriGTHHNDBQw7QFC6TIJTzjEQEb_8Ms..YLsk9yUcdKpadSq_lfSk38WNGIkJqGmARsewR6_pNIQMN2h05az49v9n.gUQG.jqMjFdR0lX2mc8.nDLBqEqvDP9o57.P_YmTBSsJQFGnyk2RwM4EN0VJjsOQVIbqDmzgLD9QB4WG85Lhs2RK.jhx1793F6yB6qDXgn7UGj0uuMeuGXtInF.2Q12Ggjpvcj3Uk2p.Jm9lC23sWiwwI5.kajuuzfrHrJDUxcQqp40_RpWbpxB4c3Ug2JUsoRhbjFo1GsF9HlfRKLwoA1ryFtIfbRjYOFZVAmuZXkeNoAgNXpUIjseoh9wWYUjPzYeSvfqw6FPO.6gKa8ZPAYvvsA5k.dSEdleDUhBrhNCv2I8tP26pIbKi_b1ATMKbNhWzX3J7jMcUilx7QF8y_Fn_XiA8Yv4vjWojSM7IAt67OwuPnGqL_PNugFVD16GmbwRbCgQJxcoSB0CroKqV5CGrxXd7EkMfCyIgDH7rNG.Hc3hsIYbAWWJqsnvILA9u.EtA7MVlbVC0fPZ5gnKiEwIvHfbUDICLEp1UjNRRPIhjzlR.OJL4eNW6xeaR3TdyxSi06qpPXnT_FwWwVwmnW5GyXv05S7WBhbkvz0wV8Qpc1.b43nRZU..PHmeSrJBy.BM2E2nZWvXkzurmcz75MvF75nE2ucOSVhc74Rwv5mXiVYP3cddWLVNHhC_F4QvwO9jubRcQz23zQ_yMstHFMNgcGZ0X6Zq5iU4QtY_cXEooqx88tbVMUZl.AGh8_gXl1D2ctGCaLbYW5fG4SwPC0i7yFv61rjmQUiTxvEFxI9oqq3AN4rt_os6SRe0gwcG7rAt5jDN8V8TeYWjNV5qcD_4Sc8djmFbCMPblNDEsiW6P8aprwlgtJyH0G01_1Om0fdpTNMly_lhO6VeA89Z4r4lIWgNwIreB24YOuaKzC0sjTDMw9o_piUOrjGoKlB2HcoKzeZA4qzQmZ8j9rh2TUTj4aRnen80Y871fUIPt7fvOTXHaH5aq9TI1CNCco364reY_27b",mdrd: "ADAHkYgz20mto1VL2fGR5NL6sf3Koy0htLY8c4a6THk-1739343131-1.2.1.1-QBUc8Ve8T3B.u8VsqTwyzxYWSsCtRdyCDqf2Q5ag7wpTZUPyJGTcsvVzqAsL05H0wSSrk7uCBPp2_3vHRVST.7W.m78EIjzHS3z0CH2BoRGlWqd1JMuQSDzR1BtYPWTOcSWVes33ws9jD0hP0QUaRwngw50oy.A17rGPpFP42v0CIPKSy02ZVNiu.PPcpsIxdhNU_u5bSAWBCPj_EGcAYU9NAKPel126bI66j8n00.gUox.HxoHsGqJy286ZQEJ22K81rLelPYQqCKQodCcDu3ENUKTAWHIjqm.iGW3A3RIi9ZRzd_wb9Hhif8VCZfGycgyNqAWouxKcg98BVhpC_WtQBy4tMc5WqZy1iJFG_6qq0fSmY0CxwwqjGq1GhLMO.INyVsSWvSRg9yR.MF21jiXwqP44GUY4zJVDzF8OQiLiArUh2OTokLPcS4GlG.pzC1RJWFh0xqTT.8YzWOwkS7JtN6svaRVBv95WFXJizP8ZcJYT9GZtyoQiSxeLyUyBzshBz5_CdEHpw3SiVqvnxcvFVPN9GRL3ep3a3gmhTK9De1b6osKMBjAuufkTaGvOR3Jj.tfBHgEz5dJ7bphJqrNZivqjuNG998J.1WOtYF6QBS_NnvWb8QHxUJAPLY831xCMGuirwk7eVL5q8uc6lobVhTmiR907xqP_37U_Jj0cicouTBYSZbET7_D7PWz9nMSMCMkbNHtFfa2ImwEQpPDtGg0J2YHfL4GoNkpoNnjaua8meAV8tIgd9qo5gveAxGNfaKoI5x7Y_n9.pryFGJHmBb6aN0kZgCqiF9zzJ71A2AWvqY4SjuW5WcFZVqiCHqkA_LYuN07hPNEgVxqs7Q9kTGnrBiBV32.X5ZT8LsUqM9byATlgkNTRZj4llGXZSHBKX8ExIN3qCtekEPp4bIxLP0o0mJwpTJmJxVnahQKST.51dgbsLqojuefq1US29PKCN.IhBpViNV9G6xZ2Ara53PAbYlEcWTRMRkXqZ6CfYoDEiYVl2pI_Ic_JZ1AC16cnR.T70sFCeR2F0ADwBkV.VEdXwdv6v9il00IYho2UyAMdXiagy4j05LL4k.UXzEHuefqP9XA_C0xer1mq25aMgb7VQHChp0SowjKViOugEf1Vtoek5tAaGX9BdYpilljqx9vbwOD7pP7LfFdD6CSjx7Ifk9N_j.c8y0WcX.yU1qjkfSPmaVmB27D8xlz9Mhlpr4W4GxdkibHQMKsCIYN1Jcl_E5.ki47A0svukCQw5Y9HK_D6iBib_sdfwaUTSDAilLkuG.WjHFP_AbdExvjVU6RBOwUIQvC7838enFJRfcotevkKLhvq_8IwYCjyW8XmnTFzgP9PQYUTs7cPNLIcNxbqG.Fcj1qR5kAHyjbKfVeaMynDT2vSO8QCBIei.Mg8oeplFEKU.xRWDuabxwyw0rssV4j4MdoQs4SFkadh.x.1eCP0EzReV0B.xmYcqILMDyjl9w6xKnzLCANgSIJc_1nJPilzmoWcI4einRhxfoA4jCyjiE0yErgJJigLWSfEz.rL3LvxdVMHSGqTJZP2Die3zlBk5yNKpYYytLxZeBRWyAvG.y5RYgXH0VpqFleeADc6Bym4n0BnL8tezufx1ZR596pWm8kNAvUaHyHdx.mbO7_44b6tx9su6Np00LQQ5wV2SnLIlUhQbtrVbp6VrHOKfvgM8u4yay3GohcJgdy9Ygg7SgihN6coWMezI6DHMvEx3yrXk2xx9o3T_F79yPgEGyQleX4D7ufmanHcBj_DuQsFXGh2MnN.YlDD7IVPIePbCrHI3Wne3mZFxchEJk3zTqrBpF4Y6OoUU_0"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=910aa78abfbdc9ab';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\/1690735842?__cf_chl_rt_tk=cpS.4zMxmKTbm1yovAxWpZShgdMSzqN37UugUBeXYXQ-1739343131-1.0.1.1-6mETIJf8bx9xstAV7YXDtXWQg_hijICX5NmczFEa9Dk" + 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