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-aff9tcbql.mit-edu.top/post/4892316507

  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-aff9tcbql.mit-edu.top",cType: 'managed',cRay: '9110bc1aad7ec979',cH: 'i0fTsZckLSOX095Hcif_TFPTxMOmfB_IdrPIOE0NmC0-1739406888-1.2.1.1-OqvO8A0saA9jHkuE27oAjX_7S5K163EqCoGmwCKfbIT2_Gginx.8mouFcV.fQZnv',cUPMDTk: "\/post\/4892316507?__cf_chl_tk=a7eh2xWZOB5_1jkD..1nNhxHMrB2uVFBEYnIJTxziQk-1739406888-1.0.1.1-vqC1aIZkbct7ErIR01T7Bpqj6CMyhSuDij1A9DHvvpA",cFPWv: 'b',cITimeS: '1739406888',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4892316507?__cf_chl_f_tk=a7eh2xWZOB5_1jkD..1nNhxHMrB2uVFBEYnIJTxziQk-1739406888-1.0.1.1-vqC1aIZkbct7ErIR01T7Bpqj6CMyhSuDij1A9DHvvpA",md: "TAoLBJhvkmacUUaiMUio1J9AHX6ZeGywZ7lI03KSZG4-1739406888-1.2.1.1-7ZgBDOxVz2d02RrHW8Ycc36hD4S3hNGy.h_2DMteHNxqGmrN8DWLLrulFqMeg3wLUGnUjv5fdAOd1D_QTSqHEBc.BK2.0cqLI8xOkBM24JyDN2D3sGtFATJfXwrINT_gZl124xaSj9GtOoBeCUjYOGn8gqzPRK.VSX9vV3wqU2L1yKJv8d75NGsilKfUDzyairGAz80V6yPOHLTQ0b4w42JjfI5XlslkBSqu3zxUp.ueoviXUYRFkTCmKi2EgosJJXx.ouQWkQ9Qt1jGm75SnVGlZZmwDkWWbVB0Pgn2m7gyZyHf8AA1HdOCnZFsck635oPBnPXc.fNsEa6VZudQ4K0i_BhXjheevViSyvl0nThhjaQBKJmH0Wc0owNrs_VaBfG7ZInisQrgLYrJdEppXmsn3jwF4zm.I8xf0PikcjRIvHfIJaTSW6IC5qd_X_Gpgrx_TMK6Rx7obsr5rbO4oXvCbInQmvvj7.Qjm_66xLP5YYXmNEfVuCiI2gGtLt1TgbQAzmC.jdPVjggOBPcTl8Ckoe26WTijs2Fw9qPw0.k9hXO2wN0FDpUX89pPbV73hZQlvUMbuJP2zjRS_066zga43D5ht4JcoKfBVtvATLox6DtGjnzj2F06noUhG1h5NK1gT0Zs1_kMKqGQVNzbiry8kfTo5WxlICgxqlDOUWAz6W4HoORG2KVAa82oZ6LEBybwWZGUUTHJeSe8jWymW2QbTuWmTYlL4B.djqtpHC9KRe4DDvYZIAUWYX_K48S3zV4zmUY0jCc3ZqkaYi5UY4AmrMxnTH66lKs9LIJJ4Js15XSXDC.PUaSyk9k2oA_qkpybS4gWzwL6btsKxoMMozyUbqlwnXh.YP._gHXuNpImcrTJFzWzU7kQWOhUU0FcEv_gPz15grrTwdfWX2EWO.HWBxxbmTB68EwNlwuaJDcRdZjgPojgBWaJHkE8CYJv3g.1eSLQS3dlz1xipzCIcdqN8bNB.rN3mZ.gypvDCHJFGzlX1VIf0vkaceNb4A9iPD9v9rthUC1uTvKxLfEPPrL72X3YKsJQHKf_yfTlfskfWG1zmmAE4Vqzw57N0WpGHFAjp4YY3f4CxnxnsG9zv3aW_g7BwgDp16y5_JrRzCsQKrTOrm91BSkWOJxrqvmDBNztwOTwW0u0FS.M1tL4.7ycJStoqsFNgItdM0WXFjLQ_c3znbY6R8Slfh3TO0HVMgP6Io9oX3ux0gsBh.KYh8.FWVS98cyZFMn6D1okTxsNJJoOOInLEA8BrE.xijCFHNgzedNxVKcSSmqaPUWfRfed8jhPbnFQpNgLRpVBY3Hp_EiHz7kqIJedfTtcNhWhxDLBgamPlFB.N7Gp1FI5lhRw1UiGPxlrwchX0CNJPbTPJkcJQ6r4Y8BNdBhXb1DyJX6XdCwPEvp4OiPcA08xh0Ieaas7I78wxk15nbba7mxOTFGqpbiYuE6n3yYR3ncefxe3hPNxQVjzBeYhUFDBpn_KGL34RjZESUb1LmIBMZSggbef0qAOTxYxVadmioz6gNnYLGn7xSMqdoYf1mWIIWWO02M55RLJHyglVYcheG.2iJx.w2MkUty45_no2lZqQJ1T8LxjDvQu4ud7myHah9C0bBDFSq6U861UXqBKrUvin6TvFinXnpbvIUSIJhsRw1zQKmoCYsdtfhbof0fI9F3wLrLSHL8hTkx_NlH_PovCmZv5ghLoetQY8Hy7bJhn09jWMsg4Q5bvM00yLidHEXmy_Xvy12IrVfvtrP.W44eDjv0MZtNX4OzLHxrlz.pmNepMwrvwoNU.GI1D0VR4VvEQXHOalZ.MvyY7T7AmNX0ZKYWX8K5mlizGHU41ODuw8eh_Jm2yV.W7fSExemxa0KquN0xfKdTmL4fBJAtxQmjzprpqGe4Xr9_W3Df0f9GspodzV41QULLMkE9GU5Dh6QBrrcY3px1T2m6upJ6ShG5SFB7eah_Izc6zrpqyIJq.MibfgiibUXoVqrqqXkw7UhG9tYoa7hI1xM3aTjZUqp5rZ0w9OU5xmrbajYoliHvRY2v2IFKrcvh6F0FlK4H.EyvI3Y1UYCI7cu9yyh_Io7Vx9GuWTJuUVpglkW8Af7_BxrnzRFnGRYPr97CW7r5dmwBea8yfU.EhhUXugNqSCZgKf4yrQCECsTdw_Zackq2q4mbEHVPUytkGdp.NRbeeovrffshRuGBcdhUbWZXOJan0VHiZP_AurJXKmk0dh5MK",mdrd: "sZOWRE4OdLK4JJzESJI1j3OcWSu8wtXtahANu7Y38wo-1739406888-1.2.1.1-73Z3oIa_QjIrZJrzx0IXBOvkVxgfKyxASCZRmMGZWnAiPcEPug.7I4C4WfhXbiKzwY0Q7idrj1rsMVj2vpx.VB8bNpmXmJVgH4cMPQrH.FObooThqF0VE0zcAsxCtkVHMLBPuE6DT0_y0i8Z0_3XNh0JoASngKlcNxIph9m.0K5fLd5a_WFJxf6mpLwQVSg43E.Pmmj4K_yb.6R9zhYTofqD8RBWDcDuyyYyOXTjly.qh0XkCxC1SXSyeWGtqYuhg7f1SG75LGAxnZesaasT6cZbscRiQvXAdf106w011U5bqSBaimNaofGbt_ofZ1czxKpVFZG13Iu29lJ2A.KpgLtn_4xW3bvGvlOAZbTPCoI6MPfEtg3HFKYdYUGIGybIX3J7dHwii3ejZrNv5fRn81xw8.Lxau_0mg10AVBry9bbKAY_Nz0lTCHTrV_jcc4MeRfI0YSNbFsD1Dg6QMz2c0w_h7epIov2BHXDMux6EA9iMs0ARDJQ4BRyVTyXsgk7BfKAl6KTyXraADIGdujDdpWK2qLIQlW53JXtezi7nw5_Dxl6cXrl48_MHwFVTLBu7oB73RLITJRzemYnyMnZ9Fk28O1T7fYKv9aNGOXSUV1FEAcr0DpePqk4u_KeYcL42qXgHOw60ZG5IOANelmeugJ_M9O7cSSu1ZlCdmFf5qfrKXL9kM47Y5RWcWUWv8pOORUsA6jYosliY.AlDMz4JYzlofyUXukkknb_MFoG3qURFa04Uk0GOovUndkRiiINzTn1NpyoGbIPC4zUZZTUsBfs6sjJiTSZMe2_dKMmr3sNaysFbjNhYoRXdpRXvVgcM7sdv6GV_3hPQhelwTCS67YFLVosUQHxUoJ4nzxbMJSaN8XJ1JAIju3RtR5BO..29fGssiEW0Jw4LCKUgeQXf1r.LanXOoB35fhpp_K6Od1MdbmX4wcT5PXLygicJySFaWtRhPG4qvnFjH8f70oj5LBMxaj_rl10Cp.5yVvmT4CkcRNjw310S6yOWBn9Bbz7MAsgtJL_3vX12Ttqi3eO4obbl.PoBBHm1jujNItDX7VwgAnBU6phgve5qnlKTQn44DJJyVfuG5qae0ftOLir0tb9gjTVuSv0W1FppbH6d3qnsAfUZIgAWd1h1dQiV46sUdZN8DvpABlWhrayzPe09EhpSa6hz8nYnZlyMhzmqK3BkZxZ7vgNX3nArUehubp0qQAapbVV8EEH_iMzXPWi6dsymdZj8MIR7PbZtSrpPbeOsoKky2N4U6ElJOPUfhmoaMfL_tDpFskF4l.1AHc_0WvMovwSnrQlTP6O23Tfom1l10os3BCRLLVHbsnAF4aADLPlmi7k49u52cxtJLwDMUGF7Ird_r8GIMYsCjl7WBocc8eFm_Ifk_Wv3uIqQOfOF2.ylY30knln5K8Xgr02GE8XydCrfelewF6ZKnosMBc5BzVBXxYPfO3IlR3pjEJPETh31RC2pa82oEKLi2uEQnDN0GuoVYXeS5uKcXMnaRalSVpn6wNjiGLJq9a9AzTNIZ9sJItKqTFk70EBvB9pHbRK1Pf_WD3MrKLDFHCn6mXMTuK5skUKZ_M7cCDSu7KRj7yP8aoCkrPI4gBTrWvjkiTLzxMlN2vCq1LD1PUj1K8LqYWnr4J25Ra1UP9uqNJkPCmT89YbAaLvnJAHbfZcEtwOAO16gP7EWwZRRb0wTvLt90B9VWqQBLdWEbDjpgbj_n_QC728_wqgz2D2wQe5U1I51rcyKTVhEUQW8kzOPc57XYxPtTFjBYfBAIzjN09rPyZWEHxTN1mN4i2YHqf3HDVu6dppUzlsdxbnNQXL9lM"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9110bc1aad7ec979';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\/4892316507?__cf_chl_rt_tk=a7eh2xWZOB5_1jkD..1nNhxHMrB2uVFBEYnIJTxziQk-1739406888-1.0.1.1-vqC1aIZkbct7ErIR01T7Bpqj6CMyhSuDij1A9DHvvpA" + 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