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-affmkb5i2.mit-edu.top/post/8630517429

  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-affmkb5i2.mit-edu.top",cType: 'managed',cRay: '9112b806db4bc947',cH: 'angOBw2eEUzIQXXpSoYqyER1m5E02_hW5BJ5Y_FjIao-1739427692-1.2.1.1-czEVQzMP1BTtLR7czw7X7njb4D1JWfPd_2Vj8CDjQfju7Kg0bEmnRbHKaZEuXWus',cUPMDTk: "\/post\/8630517429?__cf_chl_tk=ntmMSWqrvhfyQdWFARKgu93N_Erui4EpJv5DfWcLl.8-1739427692-1.0.1.1-aY4aeahBh0qQS8eEDflQ3prOARIYHGJf0yXKUAUqQIw",cFPWv: 'b',cITimeS: '1739427692',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/8630517429?__cf_chl_f_tk=ntmMSWqrvhfyQdWFARKgu93N_Erui4EpJv5DfWcLl.8-1739427692-1.0.1.1-aY4aeahBh0qQS8eEDflQ3prOARIYHGJf0yXKUAUqQIw",md: "d1CyFzRM02S1fW3SuKTiino7xWCkoP3lEwpPWk7jVH8-1739427692-1.2.1.1-q4jht2F_zmEziDK1.CpMIwlivaOplT6xKEKXqtqm7oxkoz_bp4I3dk1Mo8I8iPkiETRV2i7bJFzb6rJsBOcihlrc5vvTZ0WZ9Dih0k_V9afwc0s56BZ.2OUZht5B_Ep..XAxtF9gqvQ2ph9vwY8AERBb0WwZFSh2b5rbW.ctna5UhwKN5.kVkeBszRXYaRqoRWYcXud7QSGBNe1BXx6p3KtY.MFS83wKYw.DQe4t4EIYWBoLhSNDb59Hm4BoaZBchndosLeI20xqeow5Qj5X52z5NCxcd1L19uAHcouFSqZiQYi0jKLZOhHSu6qlpi8CqR8QDnXvNADxovZNoeAEyQAmAcc.Sx9P3A7NjhUcfVyySufJxLd_cYjOpMBeuMM3OAxN66u1owjRNDFYWvFvhneWvg4APDDlCX0X_M0L9XU7ZQ3LaiIQt31DxOOQH.QMSH5T3.Rcbf25kMfmilVioTdonCdFxKfFkALYP.AmYTllqXIsxu11l1K7AbmdTTBnUq34_UaGMcrPVXhv39QnrknVUSoBOE97VpY2vF1hrhNHrDyFX6Q7nUjHwbZlRbim.4pfxpA6Mxyd4jSoT0oxnPRu_B5uQrNxNbZsKDcEMVvCg.E9zR6LQ0CapseaoTTR9S9dxq7iQdfvsbutMDIpy5kALW_pRgkK26RP27YgznsPWNZANw2dkLoWf81fEhxbQ3u74ommMiqSJF1dEkiXtGnmCrCsUg2tSn.6cnZBflf1spCK5dlM_oVa_cuUa_owkEV7B2Pvo1GGdYejrzbpViPmENaf9L0YNKCwoLLq.njCL3Uz7M2vIFtnLC1FwUiuSxyZ4.S94eFw4WDSHKxdCGHti4DrAlZJaOiCPWrB8kCCRshCuHBnY_zlrDgdFJZWmpbw8QoFSQFBI5RBYfz4nDoEob6Fgr0sswjrmhVXjB3Z3bwdDhafYaJtdKGkvxI6VYb0EoKPfWabItX7BA0tA8uDWyYRGoZn95z4glRoShaTzSmTLpvmQTQhIfQmhxXaMHwkTXS.tOdf.x8i.9RiZNMbijO_uVUt.TyBmVzo8dnCQIpqoOZs9TYmLWm67G27uz5bigXGfYAgnVNCOh0YU6hmcQqCg_k3K.5GIWyNcg6dy1ZFG8jY2LsKZFo.PRcnYViEr26Cl0TknvYFW8Ki25mGsXZDOOY2YQYxHWSFmifbUgGuQ.P.nGMGquk_ZmusnoRH5ffjr_u3IP9neryXwuLDVAC8tZSLXVbLEXV5ZqXcWI9iGLnUIqsFZng65XJSqUld.t_48ft1vRiD.V7wTNVprevxqnqrbSkiXm70zCqkue66UhvKODRSWv9AN1u40jyesuqUoQZGcxIvbQdTcthmdbS9QFJRLOuSVyd23yhc2ocLKevN7M.KglBrbG.gTB0t4LgznWhbYKZwQJFm2Sah5j2hznZzqmkTgm.hB9V0AGplPgWRFghJWqQgCGCESHETjw1Z2zWx5l8zSxB5SqYvoFkhHYljGISldffuYuZRC8.nEtQK5gaFBcqHn1B8tCaw0K_KI4.9UfrXAgnrdEJf.H0dJKS2Mi8vh9002Zj.xzzI4CO46XmXz5QjBPbI0AoMAMb8b17447F0P9pVyGxr3y.d8UG2mKEEJqERlw2bBwG5SU2wyUcYZyIOjdV3Lmf0ZK58x7_q2dW.R39QmKFM7n2HCVI7fyZm6v2H8FoTPzMLFWQNQLeTeDdJXyTXdaK6.ZncjmmIbwPKl8_LpBy6bP1CUjoWxGI9jZasSvc_9WHckcTUgYHHYM8M6gy_MsApao6bLW49.MeyoqrRj9hlahO_9LiVXIGp0cDz7061go4CPtWu8Ho6446BqAJrtriHVc8MUZLYoMBdNGZcYw2PyebZw4H1DgEB3aGqu4Aa9f9eepmH8aD_0wMMOujTnidyzgdWCUze3KtC6P1Z5LON6Gfvwv6qoMvS9zmhshoPMR.sMxX3zvQplCLV48RJ3WtEm4qYO556DQ3oBM9LXpBFMRfc6tv29TDf8CAAGGZktvXygmRYrcYUgyXYi_J4omCigjwGhzTgk4FsWOc2f5twNawX0nh0.1DEp_uJdj1qIBXG9GqXbwdVwp9u2OFQumoWq0kckhyxsO4uO7LynbCQ9AxK1s7NfZsxyv6j.CSaq0.jYx9kJOLtlKbsw9_DjqyjHtMoo4Gg7qyXHAbBn4gYGG8HUI229Wg3xYjkE0Bmx5.I4Mf6bF_dzxagGFZm",mdrd: "uPe4HSsDOkEWIffJ_334TawtjoEf4Glz5I5g47RnETE-1739427692-1.2.1.1-bN3m_FPoXXZmAdpJmk79tD_9oj1Om2b.aHHzEHucIMSGL2eA5JcWusGP77SVZ8mel.fttYDAyml_gCQBUswcMnkkCgw.vi7LID4WJxk0U2tV2IFgO364E.YpnqtQ2DsEW37z.weIc3fdR1nArZcgXeb4zJmsevejKT2m4PDpjWcgljeUbFXxEznzMSfGQMDr0koHPxRedOeH9s72Bn2RV11jlmSquBdH21FNgN83yZxzz30K5N_nTeFS3aotr5nbUb9knGzwUfu0p.3RrpldJh4ukDnC9_y4F_Y0TWjffyF4S_HHDSft7KQ.VKYJ.bAPyOxqs_xD9qhy7BiRPDvPLTzLdse7UyA1oIB_i.mIaxTcd9SsaURSzajA1KfFWE2XSa4pWlvvvzaqCZpwa2pXHYv_wY1W5l0exHmgPsfULXO5qTaenWzMqknlEUDH6nIiTrYYcP8uR2k3LOs.GnUhhT91SuxFWd4rEgTVx3qM4.tqZ5bpl0jhP6K.mrFeAVRINdqoxM6eR0sbS.ZFcBigXuJ7JKS7dFDykLYAIARhqJuve_ZLpt48vuxTbpgoVYuaxLZ6gp.lCAn5zECl98qHu2On2qz1otk5mFMlAPon6z6tN7qJrX5uQs1mLYfcNHFZxs2soR1bUOY1rT4ykGO1bciassesYJHj0Hf4jSW7pT5gOph00_J49IL3qq1fdo5_1MY5w2MoOG1XSK_7l7kOs.67ICzvoWSmkRdYXXNIedU1ThfHDUG13psIificWgj2TWyOBNwtBFdpe8FrWfAD2QLiCTeR9BDG8X0ekTyZ9JK63Sqyj9Dutm2bU4mQGuJ1fKzV7FNN9.FobtNGvWsmU3Mt_PUbEE_zh6BlSlqHlSQQW81V4G2CXUrBNwKDvmNUBIdn8xRROWsAQ92pIdY_8mp8HEob.RIRNF7GTuxrBAbfXiCcdrsKEKkHmERAZGDTv_OLc05FjR9Ej1PtOWBcAOvoTnrVNDtXPRXu9iTbLmheP7qcXa.5TwHaRw.kKnwZI.H9EHOiwK.f2StyxPXluUirD5iWad4DRzJu4pjvPjGbdCyHKN1TBgFAkmlBWZvt4fgBkWetML7hMO.1NEffLDIw9y_CLZKv23xyARWES4N1crpDferNbaEz0bSWI0B4mLhuueto9TP3RXCjTvW7uI1ItIE53_8VsNl5nsVkpDL8RUnoPIszGg.HQJjLOoQSJD1j9qExNpDgrbsGcb.NN2FWVCghKJQj471DH3N10VeENgFI5IdhUjTktuuieTJLEMWvvwGkp1GNGPKDW.ItKkda6Xa5nvMAe0b_7dC12BGE0Qh6IVQSmMiNfeU..VXS1LBjxGx3BZiBdH3gwgUyAY443wrhsUyhbUNO91sclKJ04.tiwRRkNdBXVEjEL63hEKZboFOHx._BSey5ANy2OtmD933j4f2w_1R.pelRXlolm7guh_8oTLOAx0IeQCLfAMbeguSZp0P_nsJxFRZfEXnA6DWL3UfZfQ8I_Eqj3k4SPp6kaXVL6OW2xtKSnY0fJdhHv.RVAs3uBRu4TiS90FZb4bzCYWLais76M7XTeJn3GEOAlbubBtdBfesjfsrtfPkoai42sM_3_u1jBXQ2v2LZ4eWkqM3khDkXRl4FVEkSrppnYS9aU.pDLtq4MxEGRon_X3.lt4Yy.uXuw9ewmq8mZBsUXV7jOlpRPVzeIz6DfsZSTBfelwyxu2IDzlLdUt3dF1ecpaHFOijjIwneMUeQnRpsJNqi2NZwt6TeJimfayxZtKEh0spiFEw6UV0S0EcCy_mEDXyPrMT7H8G_ubgttZSdR6eEEO3pT_X1tt8"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9112b806db4bc947';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\/8630517429?__cf_chl_rt_tk=ntmMSWqrvhfyQdWFARKgu93N_Erui4EpJv5DfWcLl.8-1739427692-1.0.1.1-aY4aeahBh0qQS8eEDflQ3prOARIYHGJf0yXKUAUqQIw" + 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