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-164452725786.mit-edu.top/post/1397845206

  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-164452725786.mit-edu.top",cType: 'managed',cRay: '90f7f4976b65d703',cH: '0xiDuZ14Rp2nn1MIFr3daW_IxfxexXtAtby9fZHEb1U-1739147057-1.2.1.1-3XSESZUKxvF5Fee25.0rEHM5.mOnnaPrmVAr7RCMEb9yxkQTiyfI5B9SmvTL5byO',cUPMDTk: "\/post\/1397845206?__cf_chl_tk=Mg_QoWoLiFR4VveNxym4iaKTsXWoePym9z0JqyGNi3k-1739147057-1.0.1.1-ZYBtiZH3vWR5vXnSblRWwaHSg._zseg9JO.KKpK9ov8",cFPWv: 'g',cITimeS: '1739147057',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1397845206?__cf_chl_f_tk=Mg_QoWoLiFR4VveNxym4iaKTsXWoePym9z0JqyGNi3k-1739147057-1.0.1.1-ZYBtiZH3vWR5vXnSblRWwaHSg._zseg9JO.KKpK9ov8",md: "lxFFyW_nd_V7VHGDy7YjX8mvGO3.53fj9agswNQzSwc-1739147057-1.2.1.1-RIMwc1iJl3yNIMTmC1jBCPDK7STqrBWJQqe_mN4RubHDIUWSxWCMUW5VDNw7KnMbqlESlvuXUFkKUj6ErRsXgdkAUw9bB_SAZLCXXJQ86bQBt.Jyj9mYl8Xhe0Em.XtFpIh.ot3zqvrKGRl1NmsxcAm9oRrdoWDDTkPBo.wnYtCQ.6xcG_12RyZGSzYZymGarJT7Go4Pj3vkFJc_MRY9W.A7z0gd3yQb7r9ODjPTCLLxc3i90uANocf1PdlroFgWl1YGBI7NN9kxfh0VxIH0VbKuQeTyJtzZ3cfv1ruIpmurztLqLK0b4vvUJS3wPzC5FBRf__kH_OlRDJJt9qTeAv0WjmEXQ8742A4dS.na0Xc59YD4IEWpLqfJkM67TWTzknzRYIgRhtAMi9IpF_Tc8TV2anVbrvCuKY6DvalFMMvGrgBuF1hse8IkDhm3q118T5ugz.9EyzTvNTGjqa80zXHGh01N.3r8Ty4YnJd4rEFdOdX9rgEKCEQ0GrMx1oD79.iu95YVpiBznhCctn4a7CdzEj3kXir.U5F4K4RxhH0FgGhHQem02s8ivgjVBK9vimDxUtq83.YUq._uq77.E4cnpZWq85dupReEA11Pb_PCClbGvkQg1j7ZuDie0U.a9OCYQFK7H3VDcpQvc5SyNfRlbRc9dr9mxmDqAMGDrcs8MaMs3miudaEzHEzA6fu0AvCD42JqHlw90HEh5BR6H7TuK0fk79.Qxz8ocsV9weWxkwfTZf.j0MHStBnxleLUSYRThAtqo4ErLEmCgL1la9TFz.2JZ5AG7ivRK6tUNho96xc6jcBi5pDZrmjgumh1zQPKIIB7YTJIYeESfcmtzw9.s6PC.JiY8Axk7ZfJdulpwqxg1b9C1q9XQrVOZFSN_8SMKFI4LLO6G.KQgw4.MRbPgMtPhIrKXwRNXIW9lL7OMk8KOWwpqGnJxh2FgHPRAby4U_KAmhvNwLD3j7i_FK5ld.QQMhdtkkeoHYI0xqRBSYElmuGWjSLIxPO3PGErrTwylNZ3l89U3UmRtkmVLWy5XUadFF9f46hsO9olUZrNIhHKiY4HZkk83R7H8iYpr.9bB08ZTIZziAKE3tMFqnvpO79cVQIFuHXQV4QGjgmHvwAQ.P8JIAEDBSHR4IOWWIFb8XHCMQ6CJnwCXj3eJ43oYAliB3.DiYRqAqmISmd2NNRuaiPGXtRqZ.P3iSAyblvQI1JBhUvvpdBj1cCJPYdiZG.jWXgjdRh9XZHiAc5gftzfc.OaJeX4gyQhGxRHSU1lNNCA6QwdxQK0nQ.1kc2WE8iMWc6QlSh5R2_dN7agxBD41dCYKafX57OFAiUrj26NNbilpGlE8XtQ1KhDGF.KFX6AdsOmUq1OnNQgPyjYR7.Y7MeIZHwAMuvhvPFxo3qtHsKymo_kg3XhAtv_SvqAgAuHQQQ_lij6xOG9AopPxGzY8D2i8i.BM2RVclUXo.kCx088cP9drLeOWZxGzD70wIuklXNpRpE6zWABH9THhe5T3S4lNldwQaVIaXq2UjCYaMmJ1dksgA5R9dPv5ZhJE0r96dMk8dEEOr3PSE5IG4lx.q0GVhDyuKGwJN_0yZiI.T0W7ImrpA2H.0fZxHJRwoIyer1caMFuX3m0a95HOn.Qbl2jX723wYOnwIlc2_tHMIkhS3tQNw0EKrRHmKyur5F2nSGJbxEuyoUYpwE0bxr561Eh_2GLMdo3.KLZpBZfP2aTS4SHpc9Qemc5ZjsUgWDnebd6tjHDf4rzHzTcbVSUCA07IVgJaKyEiJnMWuRKOwWyMd_fTRnNUCb8tDVdcCYTvMXIt5ym95yw9ocbKxj467cr.ZAQxYjkvIeJ4JDIWrBDpRZwvHRVeCrSyUseMFww3zx9MgkgffrLIc1CDgQqVWFGyZupcavGlzdPQW30kQznkWJym9EoFKOjuBr5VdEtUsH2YQhBHC7y5mJVYdhZqXAuoei8pbfuRbHlenM3mconbhnu9OJABV1Olrtfu0dMHds4tJy53gDCwPweAapejtT_jZLEJC.uPzvrO0lPkelEuJ19vBKN1u.OWyPCmvwHjpUQwEA4GSZxiUUFisSpWv8dhVreKCAwHNNINzFeWwyex14B_8vUZ5VHHVSdugID5v2wbjx4Nwgo7UNpUzvZvKvyNs28yks47QkhVsW4wQhQsr6x_fS6WRFVa3c1ThLmGNcqgUGt1ddqzpoA1exwSGWqjM4sEMkQPZFL",mdrd: "0JAYWNymKZyh1QKcRIRYAiflmzdmS7fJsCK_T4bM1gg-1739147057-1.2.1.1-nBG6PBnYTSdBRuS5jHwMsHMIRNe7IS9SykEJHHZ6IHpwbmf5zDyI0AnQ33QkzHOHNmhwEk_E94h5ZB9uJP3.xxUlDuqrTF0yD0U6IdxZaWDEKDu2po9RbdyK7kKczudjQG2BWwxgyOt1i_2mBcW83XyuGC_w3VIF_La1WuuEVN930QcNdqf0gVrwApxZr7oTumBwZK3FcjjHJKaae6EweP.HvVu2HQ7zxzpvR8Jt6F4C4k3rkd1_quczvyLjBcZLdSt8yA_K62EYDept.Bgi6USXtuf4uEcBYx5QhWvAnAJE1iKFk6_Tphra9db6w.FfKrPcyDq.7wH6kegSEWNTGs6toEKb6JTwJHurn1BcLM_iD6PXCGGeY4XnDCHwBB2Qz3d.Nxr8PDn11hASxfowSdNSGByfUBxogSuo6ndHlfSSM9kW7hQ6kWbKyA1QYG5JrsNyVSqe.N7ykz42Uu7I8t6U9BRhjrvh3UMVOyoLcw63PYkOu4HPlyWQRRPOsmQE8aagKDfcTO9es6GV_rekeBypgXApM6XrCs9w9CtAIUrVeCfm95BUymdOcBHaW_oyUIKr0pV.1CQJddBEAA85Fgqg9_s6SJX52ss_dFP_zsC_fZx7z6sTL5MhJlwyFIPoNz26jfystleQDcMLS7_Bz2jbeB1nSoMbaCbmrzUJE.Lx9_UeaJu7X7TZg_5OFoJ48F1k8k3C3gD7bwkhKIhb.TgAE2qLAq9x4kBXcFAzz.qq6XMrCrYnX4orOqCEzHzOqjB5XeS2TukHxesXhUlZqkDDAR382vHQji56yNNfGlRbZq0eTFL1DPjF4fXjWAQ3I_yHBoV_I1o2GWah7T7pSWeW2.NmrcCVW5eOebiK.3oHVl8GMoruW4UkA6gf2KBCKK751pZtlNoFcr1gRYmIWMuj9oZVErM3WJUW_31NWKS94wRjQV4RhZGYZ.JJ2MEaoVNqkG1u8zlhBKrzuCuP_V1tg.n.6lDvOvNupJ2g4vTK5Wpy2MzZxdW_PpuW51Gla05.ZwPZFI2iOqBwY5ehyKqzf3SfJWXCWy7AVH8EuHTpsST7f1E17IQ30EDDMnp5KvpI.9Ip4Nm.CFwdGLtYvFcd8AAtbUorX0HT.eZTllini6jalUjMRHzGn3HESLJSLTRvIptxpXmgQSl5JzJ.34Cu50zXPFpM5vuswE5kzIpxNFLd48vuVa0lZGxwbLDhk6cGGmA.ON8zpAdtOzghxg4Dij8dmP8zGhrq3XJSRd5tu7ZzXxUwcWsEdqYLwtXXDSDdnTXOObKuKq0jnhFml4Aq7ueWx835pA3O7gHDNx1v2mmXKyszZNnWdV8sI3MECg6jgrVMs6TFsnEVOEfuQVr7GpuEWQ4hW5gJUT1v4PYqM1Jksdk3G0aByXSVGvxI4.Jpni9C74XdRQaH30KERRrZNSyT63gICnkIlnsM1Q8aMlD.8hsxrbZqpS.h8X5NWXtHjvppq6I6agamNdo0xtOslfrSpUVPyX2uiL4rpSGosgnPHxWmq2VsS8RFar.Eyoy_5h5tUjjy3FRR8mhGWATcv_3udoYpzcRz5stBffAiT4NqInjdu3rfkcPTEPqHX8.yst3Mlb3lWdK3FrhqMqIprzzkm6t8alvyP5QHlWn0hZU50PLJ9v5CaBmmS2VLceo47Cw71OYNBUrZWpQZEUXOVdpTSs7JbTAzsSHfk5T1i96k3aFxx9333HoU388jtwLlAPV6jlq7rbl5Rq6r7JoupW4YcNh37vaOlA2kZ.D1r3PLAc4q8tF2QJfhNb17CMO6zxEP.DkGbdkDzyiP6YFDdXvFgN.nqfXL8QG9irQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f7f4976b65d703';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\/1397845206?__cf_chl_rt_tk=Mg_QoWoLiFR4VveNxym4iaKTsXWoePym9z0JqyGNi3k-1739147057-1.0.1.1-ZYBtiZH3vWR5vXnSblRWwaHSg._zseg9JO.KKpK9ov8" + 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