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-aff55pkya.mit-edu.top/post/7960514238

  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-aff55pkya.mit-edu.top",cType: 'managed',cRay: '911055de1ae85710',cH: 'lCM0B3oAikPBNcNsiwIYHueWEJtKcHhuoteIWUTN3x0-1739402700-1.2.1.1-uxbOXjeJKUc_tqjC99z2e45g02yj7rRvoeIf77AiM0CD_yc_YqyPzmuZIFIpBDDt',cUPMDTk: "\/post\/7960514238?__cf_chl_tk=pBIxcTuGIwu4rMOGGesv2MYxs_0TjkYizPO7HSQGTp0-1739402700-1.0.1.1-PKVsOXh.Arm2Ey.Yy1gdQVDhAxSDwBPpnYUToDZZOxM",cFPWv: 'b',cITimeS: '1739402700',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7960514238?__cf_chl_f_tk=pBIxcTuGIwu4rMOGGesv2MYxs_0TjkYizPO7HSQGTp0-1739402700-1.0.1.1-PKVsOXh.Arm2Ey.Yy1gdQVDhAxSDwBPpnYUToDZZOxM",md: "Vku7pd9QHhPnh6h6Xd9CiwjA6GLblvbIe4cmpZ.Z2e8-1739402700-1.2.1.1-Lhdv6He_qH.6FOupixla8izgLRoixtLLpwnSCnMUpIw7z5ws4UH3zMUHFfLes_ldRrH06VApY9Q263d5B1wsc920o6TB88ifnX1dnPuDHOcldEAEDHwTd.pf4fKE14fy.pZYoyJPsyK.g.CvCAxVcaII_wMarxPe240W7Oa9K6wpkOl45hbG0222xtyKheEAQFmtwZI_Ow2dqMDtUe_yrL.wcvNShtNB7i38yXu2FS2BR557spjDCSFc2u1kgE5pqLJkgHUpLsMKaxZ65TpInGjk4_9kg9ejtxpfUHjTjT30qy9c98qRMy4w2XeiWhM2ZhvrXNmorUxAqkN0B6.da7UHejmiQDpbZayXvAKfNdPWNIZjHjJQsAqqA9iSgBZxTwAAWZe4A5q2bdHvcc25f0oLXLJuolNw9M9LPE.gdZbHMh.dyD9FFU7ZJVHz.AKOZ.74ADBbYAZ9ISxrWLga.izvOHmldarD30z795taWYM._c4yLvyuAY7zzPQnHzSy63rbbpZz24nHvqgNAuioIjOaTwR4KmUrDa0j_T0hmYh_h8xJiN_isTRnW4FQoCwl69NPQwbi9h3SXJVKCDAXdOKVJcFj8zMOoaC62YzMTJBbqEeQzG0SAme588Y0crqLzPTIOOfDsaLYHZ5qNKL._VEeKabl9uxePivuSRaDBxHdALuyYmhqhpKJwpLyEn6e4DepuF90lqUuzPhpWNXWVJ3ghFSI1hOndrI7Q8v8e2vcYf0Pd71HkabQtepWeoyjw_cXNx7I_WEqPWXaH_lYQOHI4bDk_1.xv7.5DLogHI1AFzBQHQRQESzAl.1cwprJQcYQjeJ_2dCtF2Wco4YzhdOWV0_Nn3zRJ8Ujh90KrwBDyYw6b4BU58ULDQcw88kDwF9ZD9uSwGeQcJ6._l5oBK5lc9TMdzWrcTkKKv1VgNUFfdMl.tLXjMSZxbc4i0YVsyTy5gCZT694c.OVd5Q6pPzLxD.dn9WvAC4FtgHQDHNj6D8hvXQnekkEE_L4xONe16lcNywc6EGwsRPIvch0QoqkajpAsDNvy_4uWhv0j3lNAJZgGYbIMqKHRTq65Y7tMhPwvuUrS6SV0gB236xgk9eMLwsxM8rpQjadM6EhUcto7D62rv0Xam7ihnrFQoGZDABftj9bSVo7woZbKpikFuXYgtcCysV9SF45rTNfv7hxywQCDUb5WZO2KNEZvP65GEzKISswd9m0DfPeZLtV1j.46wWM3gdJupbJEOJr83bT4cWzxcsZCgOK8Unde.5ikhQCXbzzmTKpiWseiBbXus9xYQtgc9h4A08lgkoWwTsp8j9sSP8cfa5om_WhVfdCaO7B4WQzqz0yfcY.BPTbKR22XYWhkfvVk_bu0up2hpBycZoIh3vGdv17.adIbRFg3zk1QoBpr2DWv_knTHh2vGef5qXP1hm.N1igT5NX7ZPXn35oJ7IERyNAXLmVC7NLMMP_MYl.V0Dt4jk1G_mE1XjY59rmUbET_3JRUetdCqCwsY1OxNtHdf3au_CWkwbYwChCvDV8RcMCVCT0t5eynB6X_DbwZiNmjXb6Zh0hKWRVnie5O29YrVKSZJ3Kv8REowfKQJdOVto8t9YfEJSwf28jYoPaA4RrHAzKSvoiGee0FKWBbANqXiRXClCKA2lOst8oH.eKqH2OTNGLkBy70CsPLs4uTE1y.W5sIGcGDv_NTmbMKHXMWVpeX2sDN3FWeA4jQDHV5ypUq_DmE8o9U6ivFAyKic7A9EIkMdIm1rg8XGCYNbCKJSd9kfpAU688BHtdVPryJVzJaFpkosOxWXH7sTlD3xNdzrEuWrHVmZqT_LZ8RGJx4VDrIFgjYa0VNpnrcAlrYP0uDo4zjF8D1m1x6.F7KjqKJY0QCNj.u0W1RkDarFXphsSQ.GWLOUC0BNn2DHcgJcZLDuSgVS_InKhtYvJ7fSTmHaJCRa8azk5_D5mOlB4.N1BFJo2_MsG11TkzRCstsKaYP44rT_4Bjb9HYPRpKJVnhneyQzR.klCEyJ6MZLD6d3BpkQBRsj46EdekpL4FkN_xgVQZfSY4nygGpt5R0vvn_d2dddtzx13B074qiiGO2uXkrPF8saNQ80AeacFC.r3_zh2sWKuKh5nK03KwgVT_h7qN6EhPrDFR3TJHbSRiIWai9C02.0fRO505s9AtynABrvRFkqmYpCnSgqynA7Ctdl9hWReCAHC88Tcs5RSNuUV0SkR6siid",mdrd: "8czlkOI99s.NDfpo17yuVutdEiUm8gO..pIp57FU8EU-1739402700-1.2.1.1-Z.8T1cqCcvOf8hK3lZ0uG50jVH.REu80qzLunonY0ZvY8BDLIwUSRjjB9AlZkpZxr4B.yFcRVYe3G.yvUsNnWepCmE8S77CFtWfQOmXozLy2gvEB328T4BnuAcKh4x9XMs9Pe45NiuygOPXSoI1bxHRepSJ_FeQJJzdeM9FR1zm.YOh6HkXcZyO3LoeXcAfoBKFzygPLtxUaQJSty3Mx2H04sx4WqD9uZ_Av7AYMElWGcN8WCTa2Ls5SHcwDKY.9lvazoFEB5.JKf_cclyVWxMYBsobEEx_YqvpUVSbcUzLPEyf9wFsw61zwflVQVii4.wzcrZGc77Vsd.QnIwsZZJCnhp6ckBvoWOSrjTWIvpEFD6YFF5l8H7pXlJMqBahSVS9KwCopjj5hnTtknfRV_YqwijCEgJ4w4n7KhOgoCoe0bI4B8RoAu_wyLui4.bRn.6hRzlclCZLy4rCeQ621727T407U5_H_ebI1g3vnaiwpGOoj9Pf05sSinDjhfbjdvwEcoaj346q_L6f9ernkxxAZnb1SsSfK0IBNEqZQYlfvy16ttqLpMhhdb9EdHDnNn5Ex.VeMd7cIUpC0eGQHUJ_3nJ8F2ZRS3JZTiQNdNYJ4_mF560zeNh8iMXETQ1mF6c9tlhYEhUvwiMNJChXkh91KCIaBlni456J5i3fDgP7dBUBWPEqYjo6Ks7Fq_C.FK4easz5xTwj7wztMD.3th46At4MOY1CO_mbGHWN600cT.XdzvQ8LRwOVtYWP6jfSYh5AMjJwFM0RycuYUPD7.wnVKclGaRZ0HhVmx6b7x1rTQoCo4.uKlb5tmidMv6Oul.mimo7QQzpXeJ8z9MYkTvcRp.mMAesNF0PSHN8aIpiocaspT4TO0dEanzADlTJPu2qtuwrczXkI162tMb0egUqUoz0KrBNv.xIbvUB6lEdXoHmZgTjpfP5yLsReh4z8j9ewTuu3hMDUWJXvglcQbB0o.9yYE0DaSvNYni0dmTNO3JZYgL3pa6D72InMqgKPmkQeK4f2cvANPTQqgH8VbhkTWOzeeGqkVpGRGhN4WqEYjXupQbLh3.j18HzlF5D_rkyK8MJOpWlgHVFygadKx.dRVfCNQd5CZKovLVFdOwFqpcGgzbeLtoEqVXbS.ND7U51GyIw52jsSEjy1lPec1ThS74gu6C52t4li8NS7_Jel9YCsJ_IlBMWR5x82P2KAftDalDHZulZ1s5ClwpGTOjB28o.pNHSACSNpzquYzUB5W_F.oyM9_JJIWBpUERzHqtAF5EZjX4NXrkJnRZu8xR59zvNO9idbbJ.9xrddfuZmMkFQfaxMyfbkj7XVqsux8T4FxDIMo.aY7otAoYiCthbMWrr3NgVfjoTvbA_jkMW339f.pOYEUa0xt6OBvmmqsYbtTfKFQoEmJcgTXrM6sAgXcQBEW0or_emRhCwkKYJm8nthpqhGp4FByWv6DMPIncJoAi_yZIIsCzS4B9nHvmG6sxYfFDR0MNsZoqktnfivu76J90g2HFSiLURMPTlgbs9vmoMWqdSQj_XObYn1mVa202DlFQhw8URnDbAIVRdEMxnp_oPoYNOa2nFTeNMYN4f53Z9_ZLA2wlUYWQI07iTGADWStFXYcL5SnvZiWSMGrMdSEBSlqCJaUETvdKzsm8wX8R6SJvCs6MIopGAv9a6bUyHmSqmpJ8BU7MMWZ5ncX3y_7tCSCZ8DfxaPYkc8zfU4VhE8wG.JVLW9E_RAI1.MhiLmdDjbIDP93Pjc97ZQlpdIDPKjmV8fu9kdcalGotiRgcndJFNBRMh.9bREhw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=911055de1ae85710';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\/7960514238?__cf_chl_rt_tk=pBIxcTuGIwu4rMOGGesv2MYxs_0TjkYizPO7HSQGTp0-1739402700-1.0.1.1-PKVsOXh.Arm2Ey.Yy1gdQVDhAxSDwBPpnYUToDZZOxM" + 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