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-aff4oalit.mit-edu.top/post/3642179805

  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-aff4oalit.mit-edu.top",cType: 'managed',cRay: '90fada4d0c7720d2',cH: 'ABgsJV679az0GgO6nlwMIdhOQxRcu9TfGApCFr3CFq4-1739177438-1.2.1.1-I3GrjSkmLZB.dlMDCHUN8XNBdcft912I8MSOLvZkiwr.TzQSBknB4l9k5YWveQ5q',cUPMDTk: "\/post\/3642179805?__cf_chl_tk=0AYSzVhyAfw2S_tgczFEeY_gxIV478QmcprqzM1CP1Y-1739177438-1.0.1.1-3SOYlo8E6fPf0wRwifxVs3eNf77uT6Ul0Jgp6MP5vZo",cFPWv: 'g',cITimeS: '1739177438',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/3642179805?__cf_chl_f_tk=0AYSzVhyAfw2S_tgczFEeY_gxIV478QmcprqzM1CP1Y-1739177438-1.0.1.1-3SOYlo8E6fPf0wRwifxVs3eNf77uT6Ul0Jgp6MP5vZo",md: "YNuMk.zBeXPV5plyfPhXVKkjugH08MJwCbbrT2omzhA-1739177438-1.2.1.1-8sEJ6v_njhzsvmb6tJ4dl1lqSInmVjw1dtcf8BAqHJyGguWWicMW5NfAInaqy3CDpi6TgX2Dq4u1AnIPOeIecKgRIVOeWxZLYlA_c0y8yc5aprGpdxwc5H3mbuijOpG9rcJL7oc3nqvM5A_YeC6dJQRxMwA3UzSnoSol8JWstZwjWK1TAE4uti9S0T4jG2J0.EyuCn8hEFjtjsbrbK0EaGNS.lipUeAw_5rr5jrbKYhAdkszd4LSMK1QLLUbItAJxlaYnDnsd7xZfSmvFgbNtOWgWaCRd8tFkPOCZRhXIFYfsbrJFjheTqcqq.AF2V66lOdKVRIAeHjWtiDYz57qjpszLKAXinBGnSSzUsMpVtsoCNRHk3IyxYsroVQYR.ACJweEjvbNxrXLgcl2Xtzqkuitr0W.oQLdW.66pN98CF.4D.5u2r9HiQeeODXg.i3bu_VMJ8uj8LfxaLgqppQjEsPijocm0PEHTuigrN.BBjUjsvykM6PnnyTL3D0zG3.kLquxm.6YXFDl82j0RdXUwGh1gAuZUqfLB_ZtXy9UB9u1xaLhReBS77LYN.8_mnk2GTaKFQNzj9Bqva1ZO4M1eQ.OvaxQMHo93eI0ncbYlZFjrE3Otg6yJGptSybBDysCgOVdL03DYvPbRORdTPMFzreyCdRHI0BnFBX1MeJyFPA8bM7xYi0bLs4xKdgk3aiOE9teKvdDXKQYCUg37rkcBruOMQ5cHARIRmSG7V3xZQZi8qTWg1PC6KVJMoK49xIHqZIMOhKAeLuiIQE11Ahsd3T3AbgAtzJ7CmGm6811Xirzz9RTyPZ_grrqM5TmyrFrpt9KtsIyNDjtS7SkCkEL9yxgyWrR_grNu26i_RwDLOJJtiDVvID2Wvs68eYHakHSP8fXbY4_Y_Y9EuVWh8BuMOepwux_SFU2NysVPaY3aEt6Y8oX8LqXbIJANj0YddGvPdvXtaTv5EINxVtKozkzPKB2paUJ__bePIpcJywsUwgRUzrF1.HIFjOam8xf0kG9sIS0q2oE9zWmOLGIeNaX0ZgD.h8ALprDyDzYD3rcKE9R40xVdVfVUn_ELk.PnMbafHGsDQey0vrCT3jdMsgvRBFiSFUWr_U_SSq_iBpag50zbcOKbfkrzq_q8jo8kfnT1DOYDqQwP.dN3YMYaxJp2AFwjuweRFLbF2BuTVNQfzEI2IyNwhIxz_rVhu17TmsW7Csjzt_Jl2J6U89FZdsYs_TaUQy4f0vy1h_w_m9mMqBWvpI_J6PnlXWyDaMkcxUkAgvg2Pr5juort._02yhctdXuqyDbRwSGoASPtixoeopWrwktuKGWw92EmTl0fnaJL_.obzRifbYVXGhKMqBKz7bGQjIChtvSCxefAXWZFTVH_QjnE3Hi5I2115A5JF9OD6clFyWqlzTQ01209OZczaj7aSJt9oF0uiDPGbJoWNQw5Dc8rl1AjZw140gb3vJbyxxaW7mvmSLDMBdzNX_Y953U2XY4jD1_Zasmi5krJItdjuIQdD66TsJSC.PxrsnYrkBOv6JVhZegYeyZ1r47APBXSjbABTCLr4zFgjAVLvqkzdFlUvz2h.HxvEsfBrjWQXSDv4dGbXWmdWA9bR_as1XKHon.boopVAAVzCMUfwzwDMzjB22jYC1c2nzCoiESWB1gkg_.vsKYVjEFqEp9CFd5TozxJ9mdwnltZImTKr2l6mtynZprJXC7_.KLA8lneyzku7qD.2_BNxW2C1cpt1iIlttEjmGGHcAJBEplYS2GUby6EJ3vMxEboKMKshBd.0HLxKXxY1jDzVe.QfwFF2lb5z8mPPhvQDaHkv7vlxghKHRpe9PN_QijNyl0DS9c7KZV8KhfOKcIfQUdGMsuhlhkNva4GbPMOCHPLbttLOkjHm0d5HZHrZBBDJ_G.3GzkNPP7eLYvI6WItc91p_subGHBNFFYgB3CGzCSEOyXpVtqJNS_Xh6d0OXImWbprskOGTbvfqRt2cPhWDrIbjddBRTi4dah4uUd0jlFetC6O50q4yee739dZh87y05hEEzlsMg890LDdMUz7xpUC9y4.6Un5eUxftSkATgoMci5pqcn9uytT7mtNUtD5xr9kaPCmu_aXFAGVqK3_bhGSoWnU0E9Q_vhCFDTGrj0BKOxtJuL1AZzXhCbRay8nSbiCo9ITw20zMRd00pB_M2jNo45hFP2rrxohLXmOpTUKb8tUaWLdLYfRg2Ba061CSjkM2q",mdrd: "6Raa_Yl5jZUspBZ1lzKshhVCtbRnQsolABXsLkpksx4-1739177438-1.2.1.1-N7VubsMazUWSMn_NeNYTgTpunBwl.ujqsZ40cI7xXsACJix1im2vLytOgYxiaIfBhS4XfVLM1POy1UAEeo2wP5pSnoZiFfWuzExyxq.yFo_RYO08C6HrNZcn7O2xbqtLM8Qu2JW3bgMiZfHLaeAppTeARdwFy7ihb8UqLH0n4rGcPkbaGRcQZHHMaB8S3VLSK5IQ_Tp1qd80Gion8RMWcvC1u3r9xs1bm_aCQpYcs.kbs2_ilivtCtMgtZhRqau4iq666__ZZHjQr6dkC_Y0wNCXVBGreD04bU_ykXY2C8NInq_TafJM6LCVdpH2vMrSTiiuP3i6ScMJPOcXqkttmXUOdVBBCc1_1Y7Iao3xLyYQO9VTH_LSfcEL7eVAu7iZmkv5g9cVC9yVX4bR2gWTsPdVcfrJ1zEGaDsUTCqHM53f_7nYjenGc5F7z8W.ubPv1A_jmidDlIFQLWU9TNKsMiDXHUphw_qjhUBBQhRYe.kTWKTzGipsbD1cvj0IVS8oVT7h2FtWE2otIJe893DYkPotTrdvDTog0PWNg90Alpi5hPKj5tODDl.OUhfD_ZkcRRcow3_8Iq2fO9ykBpA7yW7pxrM9647tWIjPAmvYYipWxDCngwwHjIlI0SW.9O6rQc1qW5m4K4aOKxC4FEkdKw_L_gPSr3xgWtXVheBZf4gcb0w70bC.aa5OJruI4Fq9TfwHVFxwndiwSzPIxwzOZBDiLhmjjHvCPd7scSohBGGC7GruR6BtCvS6EVJI.z3FGO8fcb8sZ4bqZgV0nEWDq50pNL0BnJaXbVxygcaPuzUaFInteG8qKH_8y96XIfrUzB67z8mC09Dv5PaxFS0vHoam3HC.qxk2z2r9qvvg1iU1tnshsTXLdSJhWOCNyHfT5AxnE6bbt12LDkBMOT1KXV79S0i0oRjZf_XxitiE1Hn71ZhAVEvURX4XnepqpezcxfdQPm1AI8YtA0hXclmdj.exBeR40aTMTaCLCgK4fm_r3BUsWov12jUuMF1y2xRaUtkk9yExL8cuHgCmaKCgh_oze6XqdAxXJObaqKIoN9TURllbTMnopZRHFelv2Jn7WiPV3txhO.GOTdHhrrpWXn5lC0JEY2pTnzSJk5.x___ACvL8dxYbCwKuQ2xIkNO36hqiaCeA8sG0caQU.Bp0962OYyJVDMBtCZpeuGAyeBsGrx1PaA.gPx5SIG9JTJYUTIeRA8qNOgX.Zc8v1i1ZuevhreFLjBh.FHToVI1I1Gc.6iehjhmM82uBodgql1LDmjtqJEWb33YC4woEWAFo3CP65M_uh6pgX0o4MA8agfrgiPOWSppGMzhWqePjMdgqUC7_p23NymOP2L9VfP3SunbhJZsgYbog8qHTQ2RJG0AWlrO.kjtnYXHcjnndMbYmqu1E6kOXPlmqLJnbGBDJtfiUeXlCWG9ezYUW.WRBERpxRDFwvmASz3GChwfwijSPJdTjRkCyra.H0Sx6wzSC1ukF3m2rW6z1uUPVsnPPfbfxp2ISx8iwyL_L3I2S6iuV4F8ZJa0ZZGOhcI237n.HsOy_eNJlQvBlqaTnmtpD35yJKNB6unXBhHI2IzlN0R2fJsb1WQrjyKrjEzidLIgQPk37d6bu4MNeQECXtI4a7dPF1tSzi1PS8xmDk0smWHUaV39szAbftt8rRvuzWQ.63XOKypPwPb6lrSlnvKYXI2HoO121iiIFxs09DICEHkPWRyxgAQ8ArGNHmtMP076GRDsGXgQMzmPwhjD2oiJJlmn0w9WLWgW1HAGZM6kXk85_JTLJHlUDVWbBaU.3a_u.dQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fada4d0c7720d2';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\/3642179805?__cf_chl_rt_tk=0AYSzVhyAfw2S_tgczFEeY_gxIV478QmcprqzM1CP1Y-1739177438-1.0.1.1-3SOYlo8E6fPf0wRwifxVs3eNf77uT6Ul0Jgp6MP5vZo" + 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