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-aff5yjwd0.mit-edu.top/post/4702813695

  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-aff5yjwd0.mit-edu.top",cType: 'managed',cRay: '91105adadc9b0949',cH: 'IaLDD2QliUqLNkSrD9U5_RAc2tgMNwHWuwBoZRoVfqI-1739402904-1.2.1.1-2.qa4JKG7L5aLbvrtLC_sKlKa3t3yQLJpyTSUs.zeGH81Te0TBpgfPjCFL0i6vMQ',cUPMDTk: "\/post\/4702813695?__cf_chl_tk=FBlD658FSJcaBxbUZaOis1LpWRQXD02wDxQGsVHS5L8-1739402904-1.0.1.1-IkGkw2hEIBxtQTh6c00pNph5qe4c0cAK2LVAr8ZVlpw",cFPWv: 'b',cITimeS: '1739402904',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4702813695?__cf_chl_f_tk=FBlD658FSJcaBxbUZaOis1LpWRQXD02wDxQGsVHS5L8-1739402904-1.0.1.1-IkGkw2hEIBxtQTh6c00pNph5qe4c0cAK2LVAr8ZVlpw",md: "aKX92j3Lg8Vw9ae4jofbWKF2QMYfuOpIBotV.U9e0zw-1739402904-1.2.1.1-ILD6KxwluAuBYyiTpYj0xWS03u614ZWH3qO76c2UtkKvRMXUa2Np7712TLBB_XCqvWqYTj5CMoZsvkoU3_KWDzYcLIUrCUpVd26sYZsO3hzWuLQ2fLTnZBjBm_XXLURYWMpg1dIuQw.1MTMzdua3bIRlNSjWmgi5jHMkfBjceT99SdN.wtyORxcVNuis9Lo2_X8mT9fJt0fXaaHqXXe0riJntFwef3dVK.nnHVyY.2ehvqsrQ4BsF2ZnZ4.XvZA_XqEgZ_RoEXvW2B3fbqgF4TSeCRfLD5yTjX0h3gE_MyaK_Vddq.eoLQpHlhIUPK._JmpVaMbVfR0kDzv5w7lUQLAiUc2fOd9XZvVjmjIQwPdLFM3ZjnswMslRzd3mF4exQrw0Ug.AAEO5qaEpinZQgizc6Yy0hpZNBqBuTonRHAQiAreooVe9M1TBpNKts7YvXlauO.mE35sXRATlyJpgXRzUXFSrOPDgdHG3nJPJxdp0FpiFa4.JACVHqCVMCPzs0Bb0rot5BLVT3TpFN2ZryTePX9O0zxcpxJA0a1wai8MyQaWpQjK43q.7uiYMuNHSqBIeR_0u1ojeqI7x4ZX4yB8DitFn2HPhrwGJ7U_JwXaZPoCxOmMtQ2OggKMogD9QHIrwzFaKoqNyhfBZx6PMM3Y8v8LuQxVAQW02rsewPPpRnDpJf0PWvaJXH0l6bz3deNGEOCO00sPUEdMZfFSYjTbysrD2rlPFKe.9NxJONXJgpMAMQhAMgYjsPlUYCsMcTY9VI3Q4niwW7QweWPFxE42CanjF2wtqK.fj5P56mg_bpMyisOCw2jPCzQTGAWRtSi8Xe6YxEy1gRXm1fwkXpOzpO5eg0mYSNOseS69NJWvHWRiBbIRXuVh5ypf5cr9KbwFRFaqd9Ao4toEjJqBmp6q9t82v041Hku0ntyvvtATOmZmvHVbrp7ifBIoqpd1zHAJm63UiZmu2qB4_U207Eldp.vA2cNyaKOwNajKBGC8iXVz.YOsI_JyGF6xp6sw2ekfRsN4rSiDXBq3O_u1UqJq_xQyAraa.87T0Mus06RC8ciJSRVf45hdmugplvabNPehy42hVluLUVbNM_jq9pzo_IGgrs0pKTc1zHYEMNNokp0m9pM7Pc8Z8c9aEzGisQPyK3Y30QrBOB30_q0Bw0ty0C2QNzXdCxHau.xKTA_RuqzsaHrs3pVyf_6DBM5_31GuKkVYGnPD58pBKiIdr0ETWmL74s5Mk7CJqxmPksZJ.lnW6.n2S4ZQVwaCUHrJ1n8kdQb8jWR5ywMMCeaMTzKApmjZe_aSIqJLkIGHvwTurWyWWNCyp3SZLm9QAcd47FbB7ZpfUmV77oRw9baZlHCehlqn2x71oLQhNLt1k1bko57GvljXx1kGqEg3TRE4Hf6uD6jCY_j7X25SxhhSqrCar.DDyTjnublxfwOZay82oW2SnI8DctUWfsD6rkFAkU3kWrZuZmgQrp5Dt3hrKkv_RyHjRdZUHdM_ZkvUVSERSDIYYDZd5WbyJ_IXZXR7Jp4orDez654mAUtJGljCJygQGocc06XTXevYUk7AfpW9SwT3XOPM0ql5BcrZibgQRY3d2m8Jwb50sZ.dl09j7WAcOqbiBeA73OiOC7qEl24I6spgZ4OSEIFxXBmLBl6tECTgXGGuUCClh9dTfWOaUOcztqSeyvyinFsPd7s_BShiAvkh_.GY03Ov3oZOgXWL1J6UqwJaoQDwb9OONJ8KRKcxW.9xQLOpm6XBPzWpc6hyvJesZZAef.RPGJB8tWkVneAlDUG1w62du1r9nAlwkaDwl1B1bbKf1nBCZrxwv42P8A49KssjC0diy6XHhE1h0JxwhCjjoyCAUiQO54wllgV4Mzl33Wr_jNXsAGBKRKXAxbwXRGvDNoYTl_FpPy3Ytn_NLC7jIsVaPTJ4BTrx45nRObTrOMsoFPJi.31yIKVmPQLApMtyExrBdROgGu5yCIuoPVqhI4nlp81crGlaeYEf0EHBuYT3WKqBriGB1FBDikKtHYEnKzVCvZnThB2EKT8w7HKYwZl4p1FdnGo0PewGBJqTsxmHtCKRcPrOs4FAdmAHXSownuSBOGA6ol5Z.7f_VwcG5yr25jK4YrTy6eBLuKNyOMOUyrayZ_0g94Cp4yRmMEtuJKyWsoY.d2Dw8zSgsbAu9W4mOwdklY7U83ZGNBc19R_n5RFPH4QVHtSG_yO9ge.wxGuuK0MNqP7J9",mdrd: "r.SRuVw21yRCo2KXVQHPerjmh4jt.H2IVu8t54.Tc6Q-1739402904-1.2.1.1-b.KSVUHUjfNLlKDtvJqC4eWNbklktGmZko3b3SzRhnd5rvYfkGv3BYA0LpUYkXnZu17OOyIUeaQ_2cl5t0bEkfrzza3kqq9efvbyZUPELu.6Mcbm7kBu.kNmAjlFVVAkMVhPD3ypwBdljTpVZh5lSzUPpyMk1ZI6GKO5ZUaqV8bq4tFYsztkCEnKcTbpa61tzAgKxDJv5e2zJaPg1lAA6_z53MZAXI6ODZt9v4qpSkkSV4wdWTY3jAD5oBuuhr4ZAHhFemXEHCCCkpfHe7V2BVmLm78tVbevEwg20rDOsyWotCqMHMtcJn61Q.6jNKlEbsA_63RfqzAFaLMH3ILNixO_qNQvLKg475PcF0x1Yfd5QKjb7bLMLBXDbrwTE7rMaJZ9u2FkzSBwW87_gntiFI12hjnUhi7P5w9mE3jH1JHg3TBhWowxIxTxvXxYutVOpesK1Gw2p_Fc8c3UszetJPTgCLVsv4i6028kZrqsSRJmGdauf5wvtG74HQdPphaR4KVXz4AoeefpBKK1N9JWrP9aMzlWzUX2YBZRDZjrlVVpmpWij.g14AugxfbukKXFTjGMcnrRIlYp8DiJO1sk0naUo4I3JzupznjajNc88Rv9NJOOy8NBVpiwNhtkzDgRZIWXG_tq42DF4YiQjbV0Hs9RFOLyyT6jghBKJ5_VHa5wUNJHeQ1sYJ3EPjoVF5j9aZqHTbDXwYtGU1CN9orqIaNrYnYEgbHSdMZD7uRTvpk9HgHuU6hz3lOAWz55I3SL2AooWlBdl..tWFlrksUwTgt219nXpxZiP9gxB6ITrNne3IospF4q_6EG2uO8FGYWqZTcQEFo4xy9faA0OyB7sTooY5RpqBXwFt5W_BAIkoMuZizbmTXJPJQ944B9.QfQazZfXeMTqC3Gwu_6vfLItaEhbB8nsYes_koc07hMRBBLcoPPSN5033Cmku2q7NMPxcfKLfhmN3MrfAH8E_4PDSOxlZQ0cHeNBuUOzl8_Eg8Ouy4CGc.dpL8.TT4TGdtpy7sqs31kGvbPRIA9Wni.4BkosQHLY137Fw61IE8lm02378onkYyUTG93b6sLRfOyDMnyrR822Wxw_IOegOL8Oew5Cw3UzV0wUtlZIFlEpGc6TyP2wO3MMGMp3ChgKShNuTY6NwnB4CiKldDyGHJsOso_CUF8uKiFSSUJYDcox6BXfoXQ3YEAjCDCFae6P2Da5WRuRXBDT9nhtZwHrqngpRgX.XeyfEse47zvdW0LWv26e.1iX5zo1BRGphd5O7FG4QU7_8m5JB3uPlnBNCKDH.YFWB2eb10legs0eXB_XYJ4lVFR.qJ.g1kYjn4xPVDWAGosT7e2_eysUZf3VtHMdhCjnM57QUGG.jsTFCno9hBmInpfcqPmoRSHQx0wg15ogXYZj0OIkIts4HVAd6sMwTZo_0kIEsznS4rhmi3KRantxi3pAXRgySLl8IF6_FMS3a8jDXDu.mh.Yyp3Z.Ry.pDqkRbDur48IkQeFAkwD7oBaYXRGZk5fJ0vAobxOSsXO9xV.TChRz1qetNdgzVS1vNZVgf8OdXmCwY_nLt13mAQnOTRcm262j71mKp4dH7AQLGFJUo2CNcEG6yyGYFz8iz0ogySftqFcvP0ojVWeCldoOPUafH0lmsRH5mzf21ixo67Umo_Rb9b96zPhhelXTFcZEG7npBXD_XDzAWIr9TlGvfLkui0q2p2HuCPSVGKND6mt1Blazo2LR_SD.evtHGewH.onqq3Cafk0k._ffwZQSBOK3lFXcDEM0OfqZDHilOZ_z.zKy6c_EV3Uv1Txg"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91105adadc9b0949';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\/4702813695?__cf_chl_rt_tk=FBlD658FSJcaBxbUZaOis1LpWRQXD02wDxQGsVHS5L8-1739402904-1.0.1.1-IkGkw2hEIBxtQTh6c00pNph5qe4c0cAK2LVAr8ZVlpw" + 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