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-309107390700.mit-edu.top/post/4706593821

  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-309107390700.mit-edu.top",cType: 'managed',cRay: '90fac9404ae28233',cH: 'Dt1_67S1tKFYdbOXlEZFjb3F2Qligw0Wia7Cuf7wT60-1739176739-1.2.1.1-Y0TEt5GLCQCqu6XorlqQ_lvETzz7r5Yv6U71PqEsPVSqrF41yO8trLkFWX5E5AYa',cUPMDTk: "\/post\/4706593821?__cf_chl_tk=OnunH4RsgYGEGC0AmOhjfE0rXhUvk7TIJ0VrmCu7xMg-1739176739-1.0.1.1-QVrE4Vcw_ltlljv73xuFH9ZELS5YoBB69M3Pbt3x78M",cFPWv: 'g',cITimeS: '1739176739',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4706593821?__cf_chl_f_tk=OnunH4RsgYGEGC0AmOhjfE0rXhUvk7TIJ0VrmCu7xMg-1739176739-1.0.1.1-QVrE4Vcw_ltlljv73xuFH9ZELS5YoBB69M3Pbt3x78M",md: "jzPScVls1BbOIq9O8rHrc9tF0GJQXB0Xdrm9p_uEl_c-1739176739-1.2.1.1-A3dmYD9.o1BGKbKXHvIIgkeG6jHPzw6AWdi_gy42Is2lx2HmBqPN06tnefl0Qfco0nlRRUT7XR81Le83yFxqbWOYTP37cnAm3XfA.vJXdBWwvWRglBqz7XvoUBAe0FFryJkaMm0.Eh0zpi3.0wUQAcrmWTbZM_JGEZvD16QRjxYpNMHYdgcvGMftESwKZp3gF.KYOkGPr3xQp.2wW.y16uXtt.VZoL08Cf56CkZOJxIwgZR1i6rqotyRILQzGVgA1HSfn0gMuTU8xxPPAId0TbTnbJ3X.WJEaFBEURKVhCl4imkpuEbszJzuQg6hNZThHu74GtGm5pHZpoObvu6.dYQYiSe7xfj5UOBVeDinPSV9OQunz1HtmGdGVdFWuPFwvi167A1WuycOrwpSldzdeQn7Y28ONat5rzfrBoMEpmQXlSKMEGH1CDlUKPJ4skKi1b_bFX9PI8UdwLixvYnWkmwpgx8zrnwXTfDNMP19HQUatFyeQHxN5eWxb6nO0TLFafrqUaGxv6FzlI0vyOzEaYkkNLcvYd32RhNtgr1doOdQB02Vc5V9ZBHJgW8M.LiNT1IJOpvQq4QLWYWXMRoCw.VGgYYmnfhAg2HFRcoO6ZcqFFl1c_nT97PkEATXi3egDbnhsiCuqyAwIcrLmqmYPhHKEXN2u3PesYOhU6I86RXmkboL3FDs7FEd78TW_g5PGFuOBCksDptDLgMQ9j7BGy6d4Uf3WCZIT4v22yyIXhiSl8nod1xTlmZmYlG8TtYXITGS.LOjBKGtVoCzTJAhas_E81.Kqpb2HNYf8yXh8QeUYmsQv0NJTr1v99QRTbBraVXIm5ooS8mNrc47DjUVnsLEJ2yXahZMpH0.1QTggs8RJl3TWiTuPtqzoowljJETThn4m8DlAPXvOhLlorWxb.Ff_CfIB5kMMiuPHQNlKS.2Y1iFV5lM7OeP36PdjyYPcE9MrZL7tNHysJsQy8Kq9vjiGzqrzdYAPcBixzn9sbatis43hjMZ5luq.jYIZdSmXq.wL4auxxP.0GwL5ZlutRV5FQZIsjxnhu98ignppQ8DTaRgo1Ue.uqRhMvW27FKwGSl9S7Uuw5iA7A4L5pFS_9DmZURb2sBlqmtFsh4oEoFMk.9wgjTacTFWR28aFcC_YmsCAf4MyikHDK2rYq_qKqKxCVOVy1sKETmfw_zzaJl4.C4nGHRf_16aPCjtGpCjnCc.Dra5oe5qqPyjSxHOpoMsZ4mMDQL3W3JL5AXuriB0KVXIn7KQFAyrkLJZKeqKynv_aZEsdNKAB95de138jjNR.HnVe3AJyqxTMBrDyDfLbp_0NBk0nhdPFz2CGvvDMWrM5F58iPEYwO8BGvOh9oMp6mgpc5uSYNH4dngpICNQImstXVW54eOxkLiLnMHSz00Ex2Oe3jsIYeAYkRYBqyCUNvorLpNXPSsSJ0U7mh7qJwDF_5J4Y0ucSlDv9Sp.tvaSDvzbrxrpMTTUUs9aKg4PjRhichnJUHqkC.O7fgiYTHtuZXr5qqTfhlkm3TP2GkrhHpQTlo775W84yAzjqt48AqukBHdMt53ElN98EkEopqCnfKcDMS.48FLm1rIRkUBBxqw_lTrAy2.u123gyAsp.FXfZMRERLwjdpDzLtCKVoGGnLRJiVNVDWXVDquN.Wt5hKtI0x5ILXnMdXyj1y._EQaFqL9nVVOBQXaEzX.AkIG3esnOoDZYkpmPPYchFoL3feMWz0CG_EDhhaDtku8oyU_HS16ncGTjsbEZnzCxjXIKpCZucYVC1c.Y59CgN1jBzCpszP3iaP73R2u.6P2Z7Iam.hfdgtYs8gi.1EL3V1dtrDPdJaCNeGZktGU36Dg1_HmyEWpCKmg7k7ORHKNG5i81g4W9sBcLSYGcY0nLkZELFBE1M7v16hKt9hgw0SSqoJwELdkqEREakS4TvXOynqkGoVFNyLw0da_mNqQaQbbDGeFx7ynKmJXtWwa59bVVd6qiUEf8puI0WMTsoGwhMi47jZzoDabPG0jxkdMmTWQoEr_eXzLSqqKSl37mb4gT8S69WZxrg0K0vj4cGwgHdYK8ge4V31IhFwmYKZY18PKuxNilyMYGiNKXvbCtwn6rKc4z0TbFdfTPzxXnfF4oIuVH83kxIHHJEirAcD_WTI.Xn_EFEAUrgTmq2HQR3L1r9MDAajlAcloCXMv9w9Q7SeiWWjFgH4TBnNKZz2cJL42rGz_td45V9qrDRxR",mdrd: "Ri2uhWxAE2xyI2wi13d.RGR_rgLrbd_QC3nJzJnciPo-1739176739-1.2.1.1-In9zwJxb_lnisMXmoh64v1ElDneKAnqk_zJ9UdOILcSplnvu99yxToZrruAtA8MF1xtg7L8taa3CjvxnhhbWe9sGROucB5oZ.kfmkAS91K7sO2URgnxmBGZpkNvfcz1uSGto1FwnTtFRqRgWHNOqfEm6fpSIPLFI1JKuJWd0u25FFWSnXSy6uh3rzMurgNAhe5gVmik4.wMmW4zOX0p.1YUxeTh2zYotjUuw.A_ZMLNSD5F1dHHBIXOp8jyeQaC0v3LM3.BSw.5aNcNVuwIqp1QwUWzyRTyq6.A5T3RyVJRM_OKLEiFB2ohKZbkN_iuMuriVcGC13rkeI.6Y5YTV3xnx9nnBn5ADH55NVyztXZo65uwbOSTjA4_Ie2eiBYI8CAVNQaRm.yRXmTdiMgiEz3xZcELd4HB7Yztw8_C0FA.fgoyXEnAmdPhIezNEPdnDM5vNWzmMjWa3IOCb5i4lNrUQiyc9IevB.3Rb1BQHpzqHLV7jLrcm.YH4uE5g3nbr.PD7wQ8B0sX6tGaeQ4q4ZF2B7nsIK6VjkfdxI1m7Ym15ZtLDE5tw1dIYfmE.0taKjSDwUlN5Ra_ofI6RQ2I0YxCci6CzZ8g9v5c0_zATw.gn9F1bkGTamgrP._Uajt8KNg9gQPgG6S4owy1Alcn5i1IMSWGhvjo62ACroG_ChtYqfLC5FDARtylmb2iYiotMs3Y8EHZURXXpZ6_L5EgOYzF8pFl7zf5KKEq.0b0NfBT.QDy.RjJe598ySRi0F9e_gn90zCp344UJMmsSvQ_ve3gh8pRIMAypBwM2cXQP85D8ofZg_cnjOdYTlV63.9eJeVzvzcl2R_EDU9YhA1Y4YMxXfTS1cak8lCoKovDXN2E9S0mt7hdRU3NMs1V0NmIMb1SKrVCDcKmk94OncI2ekBWoq5stbU7RoUj0iVWJ8TSZpJsazcRE5tzGNNMhm3t71T3RSg3b64xP0sv08bBKMIndh9WFjczrA_zbYLT6TTKRX7VL565M_FkylDVKzJAZQjqqNUl8IL68gqu4HuzL8eAqE5ffZPQxqVv9hdJYqfojaWPP4b.IKEoICJuS2RBnxep0yuGSTOa9JulbphDsFFyuVTFabAMcObl3Kyr6iHGm9OAWwcMLQNT5MkMHyv7h3TtX1dUpUvSNC5cbSK6pmTLAG4l3dguuFSfn6Su2sriHW92KoangSo5vVMjYFGkw6_tSno5GWN_vIzPrcj5R1HIarb6ezetP1VbSuWj.RiOLiKa8M4.aWj.CKANDdSItntWnyi5.GNM2oRkhjlhWXuVHGC_rEHg1gT5Hvq_LZsi_aVzX3cslM45gOST3o1C8txvyLb4mxb2ihZaXr5dIERpfQpUqzYqBVN2fw.p3nJBx1aqkGstHcwP9zsK1zzj_8XfdJqFfeS1NKEb_EVx2J7E383S1GhGnmKl6gi669rVxrivyWXV1gF7Fd3Tyc6YLK1eljduclmQWGk7ClSLssU4pYgnZ0AGQqxR_33Vg2fgbOUxewkIT5GeCIKWkwfyvyIKjjRFgA9Lp3.fKuPRS5XRuPoUWCDOjVulp0fhnOYOMWgGQr7CzR2NGKdnbu6KKV1JC1_pPm3sapqpOPMl5a_IvpmVhtZFKIVK40Gh29O.7MMnlYyhf5IZDahtA1YsEO6I770oNMwaJi2b8TbkbBz6NuEY8BCz25RYYkn7D8xORRICt0kaAbVGOsKY3fm6ogll6Nz9V2gXVIgeTP49G5vh33LRFWP0fVlYJYpZCXXlcRl.pl2myCtaPwNSVS.fNiQVGMmjqfPMICOt1m7AgQQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fac9404ae28233';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\/4706593821?__cf_chl_rt_tk=OnunH4RsgYGEGC0AmOhjfE0rXhUvk7TIJ0VrmCu7xMg-1739176739-1.0.1.1-QVrE4Vcw_ltlljv73xuFH9ZELS5YoBB69M3Pbt3x78M" + 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