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-affbixtxf.mit-edu.top/post/1760839542

  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-affbixtxf.mit-edu.top",cType: 'managed',cRay: '90f42273b9aed46f',cH: 'nl6yFI895ibQnmIcFpS2Ve7YPoVd4n1thIA1Ff8ZW8Y-1739106993-1.2.1.1-438PwL8jXEgnhEjuH2ymtcexa0qD_1OeHyPQB607Rf16NkKrAQ3j5T_TCX.7uQZX',cUPMDTk: "\/post\/1760839542?__cf_chl_tk=hFZXNowut8P6PX3dg0j7vwUGU1V8I8AiqfhpuBad0yM-1739106993-1.0.1.1-VKd3zx7FFtuVSrRSyY7G7fuFhYbuPEcF0FniQU9npRo",cFPWv: 'g',cITimeS: '1739106993',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1760839542?__cf_chl_f_tk=hFZXNowut8P6PX3dg0j7vwUGU1V8I8AiqfhpuBad0yM-1739106993-1.0.1.1-VKd3zx7FFtuVSrRSyY7G7fuFhYbuPEcF0FniQU9npRo",md: "GMH.FesZwlkOS08VV7USCaq4gV4OGiMobKw0TmMfUEs-1739106993-1.2.1.1-NQcmt5.MmRk2onJlIkd3BpY_WtmCV7aFzs8JVyWnn_scTmUrFpnnaRWuS9ZACpmHSVm5ww8fh7Pn7QJjD_vaA1Xq74guryRmhB4uQeyDzqBgAuRfM.BUyZuYpCerT4.mxUgLo0Lep3fAGTcKzVLt0zoMrpcYLQHT8uzdBMJPK1bNYgBd2RpuoZiB2BhkYyEl186KsxGns1PCjYshviJgYhbXC6cHHC1qu4dWIB75gafBcR7_D_pVTcfxmoU57mcq0cboh08SdBWbEzunCOJHj.5rRkbrqdFHgKAyDRSfHyGY4OouK2k2mnTaNF1U94Y.5W.BaWxwen8GfktuyWo4XJUjBtVGlliS0TnWmfETJgD9WQCdYYA_HD6LbyRkhfo0dmeXTjzMWmH3_lqr.E5TTtHc5sCmy4OqParCqSFEarwIbqB6599BMUdb2jYpxpLu1zkqd4LiuZWfYn9rUeL7y9mN8jFC_xj1drCrbiJQ1SQg_tG73dQkvy4.DFApWzFfH4hY8Tv.K_OGkk5tmfCDur53J_2xQ2TRvx9y25tI1.g1JCulatWljQllwK6wFZAV7RC5e5aM_wTxKsq4mbM0vFNfJMLsLr0ExLujTvc141_8jaT.tWwMZUx8s9fPV_gk.6HTibJaVN4RyB6ZfZoO2ym1TV8yk6AsPGjfBNoUJKgn.hzBoroWR5N5M1olNn_kdCCZDaIpqsV2I61axdYAOeyIo8PDS0rZdf7xGfdz0QCaHvf9DXv1Ghu7qMxkx3RdXTXube7ebr7CdH1Ck4IFsHdE6kuEQq3Vp6j64QLPuNTjAG7blTNgH71.ifgApyrLWQ6qJJ_Y8yreqXblldqESq2tTSvRuu8jq9zWJAWmfz2GvmU5zSEoSagK2gegc1esTjxqMPyQFczNHEJA1Dm1EARmKhiEJQeGbZSNFTfq1E1ot5vYKBC1qd0bpHMJqj8hRKk2ZPh3mPMJ.ZKSz1RKZFMUOD52Zqb8ZUb_tvugSbJMVYruXqIOwT2_7xAIk2EwhB1PEyn0eaPFkyDn6RhZOsZ8._hVo5s6z4EMw9ZqZDjygCi2ztpgeEJOt4Zt9Pj84BCI7XxEncFybbYQpHggNqeTkpGnhwVKI1f.SGz9nwRGV6Of1IKAj1qXSBd1BuhT8BR3WEr15Z6gJDnq1AGE9c_PdNAKo6MyENakkO0Zo0uvlvZpYe60Cuq3Z3e9jGMz5w.a.q9gESlRQP86c1mvAvN6Hs7KZCs_47pn6CAJ2IY1Isks8ZFP3z9E6sM1CJdSC8mvWyWURAY6ONntyj7Dw6Occbj44Tta0goCjSh9zeDgNg28R1CRxhDIxl3LORiS5BUxIew6RDRCeGpA_ie6QF8LEEJOz1kv3Wf6gvTI8mvnNOFLt_MWt.NYl6ZiJBGXALiqQFf1AvXr4dYnjkKNPCGWazknyS7V4YeR3JuEIkk6lN2W33hR0HNhjox4J0YiKR8XSs_r29LuXXwEEyAMqhjKpvkUj5ivo8uJi5R8reuaCaobDjTz8gt9fR0ONNgRPp7m30y8FOmKfZve0AAG1Kemu8Yj.dyBEm9M6k1vNFYMtOCGSPBSw8rW_S9JpNpmz0iPx.NQOY9EzDmawket835i42CxKcB27W1A9VzBdBphuMEiu7kGFWeHcF47v70H1LJD1sXmJf1a7pZG14SFjwbRhOUoAauuFHRVZyyYiwKjnpcvMi7akxOeSsuDB6Fh6xXJFzEzTY1.FDR9mLhO8JwxeXcLtFU0F0dpFl3_KVg_0NophwSL.Q1By5rBMUSzBOk_j0b8x.7L0E5LVik9uOyU568lcbFMnbuyl3iZal0S2nFlvLtqRa3Y0I8fLj_GDYO11dBUy1o6U9uf7uSjd3BhonXB__fimXDqd01u6ksYaN0HcMlWTYGj7eKRSrzxpe0xFb9B6HMja1d3_mtAXnyt2DRKDyMtYY.nPsy0VWI19VhuFAsSXelT0ZrVsGuKGE737dQSKJY.Id2wn9bnXOlk3YBfVM6UvmllQTYBbJPcAB55MjcwoHjBaD_.z5fWn_EQNsafd.u96AKH5JAeJhL_aMcmO234KLV28bphZwJODlglXsoTEokeju03DMk83Ipi5T3VDHTyTyQ3dkCJSeHxwg43no0ljIgQyei8.1Ps.mlaT3iV.0UpdabzjfWdp4P0FcaHkzHl_fY5mXLPkqpwQ8F.UPtsJDXfWnyhKCk0b.nmUxSvmqWQNfl3.L..",mdrd: "EdGuVXKtucbGHKJq_EhTRKwQorhiG4SuQwP3lBBnboQ-1739106993-1.2.1.1-YqygxVyyhpQen590PL0agfkFcQzlvt8nBMJQTnyC6CxMKmU5FQjwyX2O6OEoSKMSF2uLfZ04HUf20hRjPIbJPS8IgDXj0A6nag4SzvppSsFnH2aIlsdzTlQUH9rvdkD1pMEyHXeN.Vz70slkHjKZnyXcZgyG7Bm4hhvbgj1afz6IheyAooulzR_5BHWYAdzI63vI8jGEvv3.VnFJGGNHKMllIFaEibdX.C6Zg0q0jC0XWN8uhhIgGT5KB2Wsq_H2uJGMFOcysVm9BGHWbHD.PI4av9DHD.PFNwQGDlkdxrl4UpYbp2sQcdmCL3afIXPkmnzOhka0Xm8.z1KH3SVmGwXskETt6rWtFamc7BFNg_4oknPqHEWeNVdc6tn8zQKcB4KE4TfxRqvZcXbqLEGRKavy1vgJMmC5a676ept7PWlzKIrMZ3RQr7dMpr6P.u4JX2vqm.4SwvPJC2d6BAy6vpr8Ftjo1YK3VjsRrxHGZp8VmAVFwplTnQltKV03b91PH.yIWiay6687UmgiYL6sjnICmy6dQWwOH.jc7x9ewG_z5l3guB15GGjyvvBW4zkHUMo53PVPk3Yyd03kXnYMHYfT9bsQQgSMt5Usl5CWquM1mTROpF64ahempkeH5fmh8YKINw5rZIKp7F7ODKNDFSkd5mwl3lyk8XB9uHgqwwEV15AGBpa1j7MJS4VfOWH_ij0qUtDAlONeDzuDmELY1eHjABs6XNpkj3qGLFjTCU5isbZJyv9HiHnEB57u_uz4rLXJSSAJ14191mJEs_1YWMuKt2uwuEeJnGFq8HYlx24jpWKuyOGg1uusdKiJUCM745iqR5JABAybpgVrjaGhUmUeiQKRsTkaA87WwpFyOUHX.9FKZdhWSPEcBNWEIOJrum6.exHIHUrTqKbeSB.yMS4Qa5V7mYWzL4T0zjFotkHwUlyR94zAee9ohEZXzraUPfOFu3G.A5qWTWtSnKIynNrY7IrvhS5LCWBTHidv4EOOuBPub4gVS0i6XsWRaal8ascocJSbAkAnd4ExC6YNpoRpWft2ZGNY2fjxPpFs85nTYUwuaalQQ8Wf4kz41Ah97DyQ5bbkHzU55Yt_Mk2OAt4kFALFmMFMS3uNL._WrPs0boRiGjXdxz8Qb5gorBYxdD6PYzCBHPP0ULfGWtbaml0xWGYz6kZ9h5C6jgxkS4h.AL5Jc_HF82hcTRr0sF4rlI06yi2c2UQlozln0qm3Y5EJ_4cYikqFq8IhNzorcHC9tMOy6E430ZpU4RcVtpqwCwWGzNrXB_KGqEW0YWSXScvw1AjJeBKQXOgihbU49jiHKoqWpIbgBcgwX5mUANzNmvaseEcZafSqs6ts9h.bmPB0xTZX2sNAqGLZ.gVjx3PBdRT9qvTfBOxTIVKrHHj955hmBiqT9Pme6R.Nml2madYgsjCIK8czX.iotnojNzgJvAiMeuKOcNG9PDaZYgNuhEYTCXCHEliy_CqFhYQe2_Lb5NBdmmTYP.qRYFAZ0GNrQEpsrUYkLnZ34gQlNMLM64By9LNBrgQ8xUu612mtilYKpHaeyDiHNLfiNokk2BJO3JcfE22GW1c6A8HVhIzLpG1bFzsL_yjTBTGpx_z4aou423SOmZQc16RAHOHf3PzLrUpPBTpsDU9lBw_oxrYe33LUuS0GTjlUAXjVYM05.nO1trPSrRGrzOzdL_w8I73pj1iHQkakWr5dmfASoqWcG6DyhvlerczK17u0Qcu5NMuOjP69TQbFCug1f2h6pWaygdebmxqF7HhYwsfjDy4i.VZ_bgIcAypwi8JmYWghGmHAcl_kb0DNpP9WyLdlSLw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f42273b9aed46f';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\/1760839542?__cf_chl_rt_tk=hFZXNowut8P6PX3dg0j7vwUGU1V8I8AiqfhpuBad0yM-1739106993-1.0.1.1-VKd3zx7FFtuVSrRSyY7G7fuFhYbuPEcF0FniQU9npRo" + 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