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-affrd3r52.mit-edu.top/post/2458760139

  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-affrd3r52.mit-edu.top",cType: 'managed',cRay: '90fbcbfcf81712b9',cH: '2UTivovVbYd_WNIM_RIZGGDz7sWiaS7VbCIHx28Sw4Q-1739187337-1.2.1.1-czBxnBfyp8Sq3hNCHCVdKuAO9wTPBadnBIXGWNZaV22ktr0j6ur6B3K53iDsvwvl',cUPMDTk: "\/post\/2458760139?__cf_chl_tk=yDFWIF1w5ET6vo1xWJVQb8GTm2vJIUvx.ia9pQ_P4CM-1739187337-1.0.1.1-hBb0FEoo2fI6A5_o8eZfSqbOWCjsFEaK0_zeCOU0t6c",cFPWv: 'g',cITimeS: '1739187337',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/2458760139?__cf_chl_f_tk=yDFWIF1w5ET6vo1xWJVQb8GTm2vJIUvx.ia9pQ_P4CM-1739187337-1.0.1.1-hBb0FEoo2fI6A5_o8eZfSqbOWCjsFEaK0_zeCOU0t6c",md: "y3uUpnm8iZBjlORTEQWcaKelN9tn8NNZPdGFwlMBhW0-1739187337-1.2.1.1-UcJ37t23kq_sI_91yYR1FmW6IU6.JK.JgNCVUFMjfM3nTbLOs_ZvOKtPG6HNdJ.9gl_2ndW889R5ybepHA6QQfqNVpxeshvXbxL18aYP3RAZ9XPvBI4JaJO_CR4TVDyNQnCsVT85ekRDqhJfAyi_.4NPwfCHwNUesnKPMJzzXpgMSDK1A7kqqi5m_s1ALcRdpCCobfK.8MVjFXS3RuGrUEmRx6RFaQih7X.sgGb5z4uSmq0HGhXHgUfyhTWGDkDwDokJe8AFIc8Ip4Lh8NYIhGxCXKha6OeImfyw10C2eGlU4qgLGGoq9y45sray03_YCHALcQ.sMTMZIDKzhIEA9jWs0KGhkWcr0yK3c9OxbzujuNCQeQEQq9UY81K8kKFRBQ7ukMdRcLNmB4ZxvFB4dPIx05wPzxL45_CEvp84v3MfYwRz7Z9F0e2Pgm9fwARXwsWgA4T_EU..2UeVwV_LWjieg4XgkwOeqrc6ixrjH3YBe8MaUISeMHtj6WeEWSqDRtVKQIPdEu4gTbXfpRa.Sx091rJahZYQHt2L.HrA1BdvDj8WWQl8SkZw3TbxMpVzYRnSFOcRSpXvHGosp0.sT_P3tHhDpkD7WtJeq6gc.WAQSqLOcxRi2obuhcUmm0lyJCnHEASNoy6EMOenVNHisPDyMWARK9NXTNTF80Mt6SDT.CC8AE4l4936leCJAtgfzpwkqT6YK3aU1En7RDqpUPjQkwHSAHXZf3cAPp1Ihn74bIl7GwPjMnF_I8C.prnjceacwiLbOIt6L8puQZwbQO_O8qjjWcfyz.SNO5PG8OOVH2pnijqNxBgM.e3FxRs.ygizYRk4wCBWB8bSpA.bGfl2RPBsBxDuWEsosSw7gpJ5DXSDcozLxlG6S_3T7k_210NZDTvWrR2NNq6iKoWvEHiS2jRXv_2eoIodyqAYIkBB91riKj981FRukaTWt13.ifV0gb5OpLwQOpM_C9xaZlH9xtyDnDdOd3kpcY7q9XMNegF7yZggekf5k87ED1QSf0ZSxNbucH7ZElTje7MwBaG9XhNHtkFk4ioXjciiL4ryjl0PdebFw7IsFwGk67jFQAwnpimTX7y8PlZsVR2wVXFlCNKNiRTS26oF.f62WModeZNbHZV_5Sgf2TS58ilnrjEz3DspszFbTTgCueUgSKCv31Smp2Ep_X5QKX9wgm8mLUjKY1IhWgHEaHaRc01WT04Bv5swD.g5HwoNdoLSB_OERo7mDzbMuN4czRggsDYY5wEMzp6NyM4SCiSId4IAGrdPK6EOZT9rvUpV5pZ5PeflmuvvUrkBKK2SmDAQt3K7fK29dDIcjL08OUDIPO1Bz2agOb4w9hCv46bCYi5bVtkCNrD8FF8qpkdEMCKCgxv3X6E3NVhly7wof5fAJosQjGknuWzsATSoCe3Tnyu0AzZ_jsC8oYfSTwARrwRQEEdFoP0AdLNv7DlUS4AtSX5WO5F795L.VtqEd3uFcFbDZA40DIIZpDm2j3JCfC7WBM9JGT_.r7Rqo.L3nNEUqo1bA0yf4YlJdpR8SicYCR20FtLGiN8YGK2i2Wiaz5avUNmm8GMznHvcLvdrAyFBIivr0hBF7IXjzl16EuIayIQSb3FqPbbBfgDGUEYukofxKVwskXqzP2WWy6qACqETVFB1rF2CYVSDrbN4zaFYKETKAGebqp_AC6bHwHnSgtsp4_gACRzyV9g1oF2nbFEmasrBeIrpOY.qkHZm6ajVVEmM2GgepQ_5EZV4WbDY2bWU368GpVO2WDVTJ3Z07bR6FZAn3Yb8kzKncayAOtE51YKxoTeC39C1XRqCvKMKT_HuloA7D1Gab_wHAd0ZSBym89B6LZnGRnO3PN_NEos_cYAYCJ78QmQHjcyqUAY0mUZtKsggpBKOwORZGmstrVtDsRuwpJ7Y0I5KxCR0dvZ6voSJb_e0cMRjKa.HLiLBLJ3KJlYTcclIQbHhD.q8qyq0oqgDn.9V64Tht7cYj5i5B_RLdwwSfaxQ8ECIzh5UZfHbauYH05tmm6bdJeO8xBXV6T5Yxpv0xqBMwIPYTLwR05oOoluC0DuF6ixNtuPRAPZrRuqivLX3IJH78O.2Dg73FV8cCVDhwkUJYSnURbAxO_HXaiAoQGMO86kUo2tdGLHen.Dw4Xbz3cFHuQikA2FZjhiISqKuqX5v9KI1n1wziR.vfatsXA2lxd.WIjVTxZc6ETVqFfqM5hz2rmQonga_ES_8",mdrd: "RqH.Wj_nKR15KUE2u3E4nr8xw3_5di2Tz9FlirkKxFE-1739187337-1.2.1.1-54yL4O4eWdmVoNclxuydX2C0_ZZl9_icQIcmDSs0ZFgdKD929uV6Ubajz1r1irGvht6t7S0MOQ4rQt9nbir9UEhlKIK5YsIQ4Hu6hhkOGcMbpPTyGhbWgg_mhkPS9Ch7jM.EKgT9Nrae.nUKFCg9CjyilEL7gyatW.e_KQsFZDKkJdhj4RaVCp5oIzDyJQtuxnMJs4yr.iEaUhF3UoDSHf4aCCnngC3NINFApJoFNgo97cD.tWJvgzFKwmpMvho46G4XFLylqlGRw_R_ms2LqGJQk5bJigs0Dobk5tjbRaS13c1maRMzr27Gxs8jqVzcOlRhI9dwlPLMtvbVI3nIDemTYG1B5zCZzezGDevAcFWTQgbGfySsLzefc4EZAAY28RRxjppSZrTC5Xb8NtiIDZcCAa3duO_IN3uQ_PZl2b4BJEibtRMisK1YsKm_sIjCd2jxUmlXdrlngY2mgkf3MGM16_hKVf3dBPZtEwYG7.qQhx.5BqBCdRzY0aPitk92fvLgMZ0AzkmnU6ZhkF3xd8pxDo225AXmp_JHEabkVjRvhEnq636ZzmQhXo_afevZmxsmMcTdKA1V4zory4PKPV5tXHxVPjd3WFkoN4phxthReM53lu1IFyONxz1CsAxiwS_vu58U2LNr6WkACoRMUeeE7ctthffu719P_Pu1HJzDRxfOBcHAzGP_1_gc_0_hGTX0VA1kq.008jlwOYyZEsOKSZPpBG3igVqsgbffTI8IhogCmn_emN_DuIQTCMXn7Z6Cxq72y34No_kAeGx4nTdpUaTLLpmrGV6oBgGHzVeYUIioGXQj1VCSXn2Otb6dnsRZ0CcScha7t6iIug.8nh8.uXsYcl7dGD6fVdq5HE3sXsknKdN9hlDrebcb2T4m3Im37g8wZL4Q3aohydAy3rGBRW6Bllx2MJFgimUbrMJECZGbqgXSAPMTDl.pwIVs_4UFlgyfp.rooErWzgZ9CWvG7jUy0A1iKf3Pd3jwTpHLwNc42B.3yxiSgooZ0.HlfxnuNSLF.4I_FfVgeWZ1MmLYzlTj_0JGrSlvmlMR5RN80urqFhreYuwandKMjRWZ1nwjVNiM8FL3TVBdXYdzJnarRGHLgi.Jti5eaTkqiaWQV1EdHOk5sL4DxCDe5pvuM3aU6BuqlPgMk9dAH5LxW2sVOfi1H8AfJWatXqmDywlhgGPGKL9k3Aey9nIfKL05RWcQTIftLcQe7WS30RJisBK5fLFlX1y7uUXYXMvkQ6Z71tRKNfGkVimsTmmX_urCEtMW4vG8dW8pfIrnLiAA.0GLWh.EbnzI8MZ17h9RsbRxcUH_umjYCAkr_w6ZmHQUQHUtrUWV4d__hdjHy4IFdCUpkajUY9.HpFMAcVQhXGvWmmlYz.1QjRhJCl_HVtRw1YiEF64Bwrm_18AbkpXTl82xsN4GhFbndbpa1Rgc9OzB.aYYPvJeFBp_4kBN0sV00fyhX4JHjgJdDdEH1SIx.9I0MXEuyl16sVpiOYoMTRLnINEIcAjVM7lzjq1HlXNFr00FG6XwYMEqcqQ8jkEzCe9KiOSgfbh16XX5PMgoPLUfMwRTjqrZIfNJWHEfVLqguhDOv3xqpseKGDPLgmJvlTVbphh2S_Zfk7sVJiDe.jvx6jumFn5XIKHAH_UJRGZ58KipAFNS1RMwkaPhbQdBoFf0PV1pIIxCGgJpqqnoW6WvlmNn_kc0tO7bBc1jrajnOoOd4iiEKX4mMcvwS7GyXGm6sMeEW3Xl49NQBkZL9dVI0DZJoY0mxz8SnaixBhpMLyW.aZfp3fm939huNMPluQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fbcbfcf81712b9';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\/2458760139?__cf_chl_rt_tk=yDFWIF1w5ET6vo1xWJVQb8GTm2vJIUvx.ia9pQ_P4CM-1739187337-1.0.1.1-hBb0FEoo2fI6A5_o8eZfSqbOWCjsFEaK0_zeCOU0t6c" + 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