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-aff53xqkt.mit-edu.top/post/5981234607

  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-aff53xqkt.mit-edu.top",cType: 'managed',cRay: '90f3757cdccd1725',cH: '4um6yCyep.l71ToynMQQwpYOs2hA1HOP5Ckqsl5tCk0-1739099908-1.2.1.1-Q6Af3eDt6qQVv1NuSquxSLpnmVgmVDB9DM0xyk7nDiaG95Ls1eCcO2p9gCbEXX7T',cUPMDTk: "\/post\/5981234607?__cf_chl_tk=qOAMIJprlTaOb7QR8j.0zrAMy8jXZyJhOAsMAV337Vw-1739099908-1.0.1.1-XH1rrIxrZWPuy4I5l1e2g25USfHGb_Uub1es_U.fEmg",cFPWv: 'g',cITimeS: '1739099908',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/5981234607?__cf_chl_f_tk=qOAMIJprlTaOb7QR8j.0zrAMy8jXZyJhOAsMAV337Vw-1739099908-1.0.1.1-XH1rrIxrZWPuy4I5l1e2g25USfHGb_Uub1es_U.fEmg",md: "_wXVXpV9rf20r0KP.8WjTqKoAoXuaBSMFTGQXsNBM1M-1739099908-1.2.1.1-JRjTKi5BSfnQObJhsJWGm2NDyGPeHomgHG7e9ryoDAi.T6eDdNHtka5WGJopCd84nX0qPxUvrXG8n.aThSedUNgPNesPOJ_aSFjmKLMqbaj0Kj9oLmPoLyWoiLvTNvglLjtN9lYjqMvh4Hl5lygDsHtpcVKrByucpFbvOjnmG8dmxmDgdgcX_MXsY4ouDx_KlKptIHDmozxe4ryeU5gbO8uHDWo3Jnj_oQv8RYRwnIiL7DRrks10fPZLEUMZ7g0.oJleNA5OzS9z6QhP4XqDBn2aLKvmN_nLQIgUwzADy_35AAsmVSYZQa4QRWux7.vrPL_61h4eoBJHOn64GQ_dtCpi82um4W317fQtd32cKKgwa.hiA1GLtvfeWfQYDU6R89LgMEL3gHvt4nRJmXItoPJM1LtROdNfBT5dRuAGMnsnde7Rp5a.njLJrfZg3EJyrxjPB_J.F5vdBRi3hzuI2oUwuryMtY8ceGN3mdHc5Lr0x8.Y2JtumYpzG3.w5V0gtaDKOR1POC1u5cUs0RyDqoO.BDei.TitmXGSTG7EDaVFKiqrvr0xhtEad6Pe.IkenFtb4Y.3JbrY_BuQz_iO05mGE7QCsJZ9pjzlyBg0HGEgv6nrr7qiKZUdpXzwyB6xIFHT2A120K1eXNTbz1NmKOdhj4P8RKJqz6VgPQU2GnvboFDPAI9C035y4gnCIuCZKRF8tPUBJ7DDaiZSfUMwGpWHG5jkdyNH7sNNYJlmqR4uT9zM7CabaNCMB5qweabp9PO3n7EoiczjuGD93ll0pQx8vsdnJdNUuZMzBb3rxDsyo9vQk81bbU7KSOUb3ZoANRurmdg4FuADCul8MYqQTJKebbXd.dgjy_SkG_T3rEngQVKVwVMpc_XMy0acQlHwK4GAXaTbTHX2yeMoCg8T7.CxeDCEzZlbw658wDH9GEkKLiBp9YE_FkYr9IovOWyKgZGfR5fsVpg5xMzV6C7ZPvwm4oNeFA8eVulRPMZa3X6wwo1xS7dT3r1VnoVpo6vl00YiLddcMPZz2EsU9mzAACFyBa5pO9DC2Er0NDbDQRfjG7bCNmiqNE7VCuu4oYpkJoV6gQtNow48NWoZgVQEPNvrR0.Joavj8zYLCC0OJZxC8lxrqrr9fK1YGd97uMLH2SofhMcbTwSi0SPLrinUU0aCQ3Dr8bhoiPoKaVaxh2zv6yN.KNepxIzqPunEJxfqoq2kDU_5lTkXWhEXe92GKSXgMdv054IBcEhpD0euXua25R8UYUwSGlR_Z911jnTZ5O.KknvEOebKF8NUyGtGkDi6gqlUp_thVTK8nBaLeNOM2yMa18WCWMFP1LmlLmxZorRst7_JaDV4G.qVSAqIGPExfewj0HyXA5NbtOdzLZKy7sdMo.1DEX3blehdP5TioPrmz74HJ.N9Plqp3UMCrAdh82IK0e9_fOztl0.oVBQrXH2vqVkYemwKTDmuffBHjbtJXi3ta6ax6fBQEG2V9HlZs9GvxOYBtgoko4sZZQaIJliB48lAXtyI.nfmrp5TR4cY8dbdRMCcTURYKfu_7NpCbik8c7jVvI2dDvRB3lvx6i3pW7IMl3Iqk10YEMPeI.5n81waJXYokhDRfI89zRtcb9GZku8UORF2iJbAuRtMCCsgB.V.CJ_Y6dUOJeF2A0lvmdC6W8IPSgv7oQkfqcjIfwvSWrmBgrckApFQV2TBCXE0DDbD.dKuSZTt2Qc3jKSCuXggbHpn0GBr2zKxnrOkFu4_MfhMm6OVRkbvGNZ2..Li3deeJByisgdgIRe2rlNmaBKdW8YmqAm5734y9dq8bDRKq6hP95R4TDAhZLm9jH682NUeAEeKvFyN9ttrWKs_rzaT_iYJ_dnO9esN8A8fnLQdMqjwcgnFqPcV0RYHGa_AY5G2wKxU4L_UhtdRkW49784lDQ3tJul10weKROYdtpTvjcMUnyw8PjOpAxYdBYpMSliaB_.2tTvUU73aco.GecN6Y39Oo6d8T_DFlQ0BMJpy1e_.hETqm8yl509yCjfNRaVU_uYhX7Gey3PZ2dNzLYSTc5_hJvjiMchYzjdSyiB6Fe7B9fDhTjDn0shCB5vChw0Opw5jlEKxg7SBK65IS.JLVjXCMYOYm2fIlODeSwElJr2a5YZJJ22kZj0sujzthNbxoKRjdC4xaP9.q27C75PUg1IGhCr6fqbKmkd0yGyOy3uPp1CmcJ7kkMqUb6gysytZMyYlAygD9akD",mdrd: "uZ5MuoGHhC28077N6Mt.TAej0Aq.5BwwuvNfMuOBdmo-1739099908-1.2.1.1-5gSLR9Rl0IRHvpk0NmagovVRwbJ2STFl0OI_F9rhUgwN3KGcnyw3jH9.waJkPD8j5OjWiDuNAxkHNs6RcJ_tr4nG2haQwSZ9A3da0FHRS1wY5MbiPGUOAMec1g2DNe8FrzifMLGh6HMfL87oLMg3uj2HM3q9guZcqZ_eLd0u6VM8qEWFlgj7RLfjkGhsA5SA2PQCnCxd4N1gth16jU3PUmO0uzSqwtN7GF.3oo.jDkPcYkBL_MWg.htOqp7dswOCUd2_0XpjtWjwYGj..A5ICsywirpwG3mF.h5.7RenWNbhsiNmtz14HzUPCECwBAXmXd2c4P.OKDlztHGF030QIQ_M9yOvKMsK6N3u8kSuCXKUJs5PrlwVMF2EKDhzPjvAHi7J9o_XtzjXYVBp8Q_sPsWvqRaqX1gaB6ZKDL0PtmGL7zccJsvo6.hA2FOJ6_UnF9TiPYYQU1Ca4ZyYkO_YGM5Mz05TurAp3fHNFSYhCJAtuSTJ5xI8sELFAyoOfZjO0k0qkovjCIrM3xswRriofbLvDzNfqwgqofa7WI0m0VLnCgBxg4hwr_oGgYp08mA4zOVRRLZ6kPZ5IM1OUuzj2HzzqLp8vdj4hE5JP8Vj_MHkJ.Ix6mvCkwT_RFRSaLlRrNq4MO1N3k6js.HmH5zwXYismgnMi6c4QNy1_PXYWy055IbN1Qemu83b6yiJxbK3FXaEfc_Iefs6N9VXPRRMSZGCQKsDUgxsXMEmk4GJOvjkvHVFkYbzit7BL9MaBcgiPRAJ7Ccso6dP1NbJpX9DjRiYCKM_5BHeMSj.bqM2z7CvfMhw2R97G1m5jvFtVfDaQcxiAEnhgArkkuENxv8tcAJLdLSb2a8k4Qym0_hcjoB9jAFEmS_M0z9sFRo8rodG0X4Y9WCzn3xh4wr9p5ubJ_i70F55MDulaYReG8GChLUWF.9eDA0FoIcx8kVjFR5I2BXSzx1grn1SRF7yTFCDJvO7.vUEhxPJRa0WCSaxqasi0o9p0tVQaLWkrsIxXsoLSaNtMwEy39BYNZw_QIrY1XyKzHecGVYVGOrsmYsj6AwzSysfKLCu77_Wud6dBImDkawTMAM5VbBnbG.IANMzCQ.rgT_djQxshy9wjt8bFOH5HNIrreinvo4bilSpXtmRgqzy.hd842MjAC6aJ1x5U3ZA9eUpUQY.VRSVlMKL2wlwscKl7vFC48AZKEs8qGwmGjfhK0d3bPhKenTRpgzgMJO61vGf2HZtbavR8KQkBWR7EAlFkX06gbkuI12A3S.O4mwT3hv1e6SWo_vUKnuTpjUAjJRIAhdYTOGqLM713yTRF0mcy4qlyOUtyNKLn3D8hbgl5ayqYLNUt2Ip0OG2FxWx3RFGopabZqgqx_jl0kUpJ7857aTGm8v8V0INKxzr3Wgk0wybIn8UJaNwgTrrZWzgJhC17nU3oz1JiOXkQW5Mnfocnv3936T4BaDdfigPHijoZjyfyOFFwHDFm10Q7ZcsufloXRRr9QcMvI6.JHV3LVsHQ71uyxUnTxHqyi9rxXJRXL8u3Gj2pNAwIyI38uRnt.M136SM1EnT0znT.H.nZr8DzA7uwWIYAgo86Sn4Gkp7s8b1tlOiAjFKaqg0.zUxniBNVcYz_JYSysBgCbItI5KSfz1b8VcQAvUrNDudm9a0KKsw.0CCTQxUF99F.C6O7CksSIyi0druhF63p_68NQyuCJZpz.eWHQ.o1cmFoimCQoUTfV90fVWmGLNFuLzXtzMN28TEbBY323mpwFZFAeQNTqAO3dzjcRrCpCSUfzFSl5CFDN2POsHpOR4a9g"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f3757cdccd1725';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\/5981234607?__cf_chl_rt_tk=qOAMIJprlTaOb7QR8j.0zrAMy8jXZyJhOAsMAV337Vw-1739099908-1.0.1.1-XH1rrIxrZWPuy4I5l1e2g25USfHGb_Uub1es_U.fEmg" + 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