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-afffl3hrs.mit-edu.top/post/4290687135

  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-afffl3hrs.mit-edu.top",cType: 'managed',cRay: '90f9fc12bbd2dda6',cH: 'jBnBugNgsyFKYBXqFVdajrweWOIcBWh7QLh4jv.KSvY-1739168335-1.2.1.1-ZvrmiOZxA0x0XISKu4375b6gn802ul7MGVgEJ9PU6.ICO_135aIeysV1ZtlgkYXS',cUPMDTk: "\/post\/4290687135?__cf_chl_tk=WJjyCKx.uj8PEIATw9GuFKaV57w9SSl1l0oaoU6z4_A-1739168335-1.0.1.1-MELu0Ac892AXn_YMqpEX4sUxEo1z_OBSXZh9abjbiFw",cFPWv: 'g',cITimeS: '1739168335',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4290687135?__cf_chl_f_tk=WJjyCKx.uj8PEIATw9GuFKaV57w9SSl1l0oaoU6z4_A-1739168335-1.0.1.1-MELu0Ac892AXn_YMqpEX4sUxEo1z_OBSXZh9abjbiFw",md: "pdXqYqDOSceHJjPtbenracpRb9pRNaEld31U1Ntqv8E-1739168335-1.2.1.1-SSN9WgRtlsN9CEwpcd1UuOKxqu3Pt6SJLOOpeVhbSB7Upsg3mqq_POvA8mSBedTk86mgA15GUEdOwetsBj5Hq59PJJ1op30aCkOGdVf3PJUvKRnrq1X7Qdwns9IoHh07iZzEOXT8XuO0Nf.fTNxOnX2yHWG9nnbAhu6g7LF6xYLeSc7wtukUGfVH6fWkrAbhPemrQiFZJsU.M_qcbFZ4emVU9.QgnTZIHcQPjcq3IYmKlnxXSw8_aiIgysobf4q0hAj9SiHNxHnojWmxtoRfYGCd9k1n6UMR3ZmAhQWO9o1rBSSbLFEAXPCbCU_rpVDW.NIKMSMhfxRWF.pjpEPwjWhCspNhAZqEw8WPMLt4NPSmJfVq.e4Vs3TvNVLVC0kNF4.NCKxxHhgOnG1fUZNa8ZqN00DzMXgBGDhgJpCqQtarBERhuWiLiOPha22sqEjHDUfcV2NeLEnNnIYbPzkqcjjw9s7VkDdc0ptdDin.esLQiLKt98im0BZZYod_5bTZASsQlvWyr5fblOoTAB_ckQQaxxZRInJU0wh9OctrvM6ss_MBiWGA6Ohxpy3kL4gAArBw0KobzYggJ9yB5lRoiJJIEdnuYsm2ryUnqwB.KZd1vKl0ieISmrREpRFsAE6X7LkGc4ASqpo5bE0x3jHamRQ8F23HcPh0uExsJckYqJ.FUgjiIVGB.t9KkZeY6XFutEcgBoMRU2MMCncclkIhbmRZuekxWyKJLIptzWHVz8OXyEjpZAfU4hFeONDamZaEw0r.zHC6t3KKO99Ep_XmSHcTl3jxpOjaBvbMgXhey5HuxSW_cliXewCP4u3XEKjloXuAZJCSm9QlmumAfahmtQ8r1TvnOuFtyrEs1ueshbLNuWy5aKS1YS8SwZ0OkP6qtNPE_E3bjPEwaHAmqKFgmGLyecu_W.03uWqnH_htyrewwCuQp0uYpDOHwXR6PW1WHTsC3rAfQj3Vkfg2MbjgungQU7monGZsr7JSI4akpQ7O_jBhnNbmVNfaKwxzhXAevLdq0flSU9Jd.iJJHDwtlwO7wNvykX5EipjewsZXX7nJ7nrekB_MkuWNPFhLiM_nEB1RmXzbVBGfc3l11_JQFjzeCrFDsKpg9khukbdBSr2ztG6uXujpx5IAElIoIHW05zyY_sfO0P_te9S9ajLR14.DigUDu39sDg6DK9TpBlMnsQ930Mt.hzfWU8EHhWF_tsXYmvMOCm2Ae0JBMsRDlhT4xWCPebmfBA0m5ohSCeQhv83YZKNg2qzHhvG4HOzvd0qLTIn5qMXbs296v7LroYftcax8_Ytb32C4bppEc_xbvihwX4MfurHmc8V7Ad3mp0xBnhVsG9rP5POVnv6qw1bH1I6D7MHS0r92AI7EcE6ElrNiHf5x9HF3Gj3ilWTCElnage2C17aOXCws3RqQ3Y61hw3CMF9AFWLIr5X1dIF6IGqug5hwoQhBSIj8llgqJFDGykAif1gvWuhruh9f.I.go5UWmd_cMs4MiS14OhmaOVANcgNonDhou4pR.VFR63wUldvSRz9C.LAdoJoB7LuKp3gkFkg689W9LQB9LU4iRsr7RjEq6aEmYuIqKF3x7z4RI75faOkglavIbkxgN7YvSr6H1AtGDKbrNRcbMh2mvMWchp4MIFfhtx0ahE_9JlWy5AdNu8DWy94F4CCInyNV7j_3nMrEWbS5mWLHf_LuaacsdC15Q_Xc9O_mkZZj2lqCySvZ3tddZiFNUaBwSmbftcUElHFQ4b9prfjieUdh1hbdhKHkPnSMDj5vYY8M0JhAos9lzsqApHF.EBaBtPH2O6yRIXLfg3NNToqHWp0c_N9JqLTTKKsx2G30xaBqCx9Fg99f6mHRINrRCp7dXFm8hB557VNPEhSVWAQvuC49oB4WQcvYjKUHxEEpN6Th_.sk_uRSuz8xc656Ivcq.Wo.yIDZshhwUHR15sccT4bkOgeQDE5ar5d0EeO5ZQucYO39y8FCcpG0FM4bZBtCAMwzHx.KHr9hODyOpv_cohDy41ujBTnbDrWmk..G0CAyznW1oGJlEqZe2XB6S7smS_yBZLGdAlExVaXVab8XXqKfX1CzCWJR05.9ecq8YSV8vrIMUSXLqbMFyVQzB5SfD86lt2NKcMRqBTQSOqI9RYB66y3eCbjBhpZlyyayNNkGip3.UTL3q_QNGz8iLUlo34MgJ0sZEx3bEArSothYMP3Pohvqw8MZlsnJ.xK77rEX",mdrd: "MpLZUW_WWiOvVUqxsCPgRzeWKhadwM2e4vpGVOHFszI-1739168335-1.2.1.1-Jadgt6Hj2sr16rDgWA2SoOw7OdeyL.8LphfNLek1zAzjq8q3Yb.ncRe6E34iLxyvf0SVLsX7Q_aZkoOVtBF1zcEPH3h86Yecc_QrCEJLK.KioeNVBpPJy5ECXPsw256wN0fL9PwvLnsn49f8GiAwihlxHSmqdGNPruzMD3TnCmFqwxTimRR7knba.NAGjorew47aWp43XJT5Q7FJhmu8bYBnIaScTQNzDLpZzT7SCqLILsGeL_jRt5rGEGHon30kOLrf7rzOnGA8HjeMpkE5uJbktP37ST3bcUAdWrbUBL00V8HOXC0k1EXTeUgKIQ30uCwYnbSLpT22cSRPsVoBxUOhLkq4FYZNXI7ebnLDw.igEiaRkPc7wRFWIur5BMcq.Zi6e_9DOgPLHUQPUJ46vbJ_O0tSZRwpuCdPf4w8qPT.fRszfCtlKbnSQpFs66pPjNK1U9LDNCCaJVBBWLp0eb7INOUzolsm5M.pp2AuSqTrRzI1Dm4VCXjAfZ_E4d3y_Q_poVLTDhXgYO5ln3jZtoGAfV4_3EcE1dTSoUQqYu7bonRMr5qwC0DCMWePtg4LTtJdexWkIBugEfmoqCqB9cQF0dh8DiF3CbbKhpm8etcEis4MCFNtCuzeZ8O65TG4OP9IBZ1th0DVGdsV7U.4BzYrdBM0exeN0kWdxc51vCIr8Ql60G1QiLgiVqHu9RoH_.WFmnRU4DqzsyQGwg5MpJBomoOU4fMhw6h3BZSKN93549_kO.cNp1DTIb7s9j5J5RVlvRkbdfR7KWqiBMFFKylunqx4Wrzm2_UcYKcdNNmKIjSrI9ahAzdZC5WnfcJfOPfrQ4yMLLYDwIol.27uFpukY3Csr9aRxf2.UTkiWtrng0.__o3LaKYvdDQUEIsrEf7gx3pQcvirqH8iBEUjeWB3DLUS.NcJcdK_azGEXa7dsyqJLGjeysHOm9vz9lBoeyNyxwOuRhNH2vCTac73vejOKBZlbEXVcXkrq7NnyFAQvVOKnEgS4QoVBTu9TvtDBZ5UvnxxlXMwow3COKKqfu9qhLhRHpe2lu6NWNuj10L9IknXDZAT3ApFNJOAun0_ylxg43ExG7Sf67ZPRbti_elWL7BjhYTRoHQnQcDeCcbrp06Ym6FVV1tVD9NL8VGjuTwSDmor0kXUGThVfKfJIhRhcVO68j8TUDOfDeS9eElPJZxtZ6jq4LBVuzIiLhr15dew8TmvLa0RPe3GLkuzQpdRCNYfsDbLpeWaNdzJg6sj9LORGjHRXP.oiC7QO7jlQ5t4ey35vbdCzN8fn_JM8ydPzFfUBBrsw7nZliYZQBpqwKX33sCJXBFd_uGTeggZmSMv2MlmRfZAruzjpLZYBo2Uo1ov5cvKtFDM9P9Iy8BJy7szkP71IQ1WkZbTLr02o.8zsLv4NHAZlc6zfoKOmtmo0uLgpLCkEeRvtc7avxsAAGTsXKlK.uvS_LYJfaLfFbGATQn2CAYwWzTxjWQ5zeT5TB1ERtVcOa9UpYvpmlYpnvOKJ.fR91zTMZwa0VrgyBlxfyrfQl3G5MhXgReoCk3r0Q5.qZgH1TrcHBALLEXBapQhLVzhq7u0eeSCdbXu9I1rDqWj0EDef7O.PXdcUYXDglVvKaZ9tX.D0VqYMJ_5WaTwK.Gt_E1Nt0_YEnYRViORnpdiJkKbFprNM56gJ8DSq.inDqbyElvbQMdmXe4WHix1YjxS7sz.fOaKPiLcaLT6xTYjimc8huq_0Hg3aPiT.8KbLmGYoXpm0W_Qz86NDIAPe_6uBTPKShtV4MQoAY4Dusto9cxavdar_.jV6ziU_9M1ky5tiQDEgAY6VdY"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f9fc12bbd2dda6';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\/4290687135?__cf_chl_rt_tk=WJjyCKx.uj8PEIATw9GuFKaV57w9SSl1l0oaoU6z4_A-1739168335-1.0.1.1-MELu0Ac892AXn_YMqpEX4sUxEo1z_OBSXZh9abjbiFw" + 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