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-aff9ngxoj.mit-edu.top/post/2016754398

  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-aff9ngxoj.mit-edu.top",cType: 'managed',cRay: '90f70d93fabc5752',cH: 'Yy1Zmca78MKOIEWFhNdrmGbUyLlxTuPDPNIzt_pKyxc-1739137595-1.2.1.1-ncPlOO_1EFzC20zyNZouomnWhNAosgvd7_dA0ZHv_fW1AFEPwUvRsTu18_0y7Vkh',cUPMDTk: "\/post\/2016754398?__cf_chl_tk=zTHneRvSvvXDik.LJNiwryCRpCpsqHiBDEP_bQDMqtQ-1739137595-1.0.1.1-r4k13aSfZtQ9zvw7R.M2gi4eb33ZVWJRTrLVcqfrF4c",cFPWv: 'g',cITimeS: '1739137595',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/2016754398?__cf_chl_f_tk=zTHneRvSvvXDik.LJNiwryCRpCpsqHiBDEP_bQDMqtQ-1739137595-1.0.1.1-r4k13aSfZtQ9zvw7R.M2gi4eb33ZVWJRTrLVcqfrF4c",md: "m8YQTbETHVO1wTuWTPfR6dumnCvYhU_01Q1UznT0vV4-1739137595-1.2.1.1-RC7kQPMPnfPr8JGrVxWfd1SXfEVC0rDFhJloKiGSABvvu8cWeqGytTJcFnm0XAFgJ_GzN9SgY7YXNkXrC2uR3dtE4sOHDyWyrZzEHTgcSnX.BufI.ijIYfCf5XQwKMD_zFDIMiMzVRMtEEG2Qz97zc9wQnSTZmG0CYCfo45kteHTyx.9GfmkzIDO.3W.PF2A5lMCzT5QlB3YEbMIYTurSiXtoW5lMN3vbOx8r9rlhg1C_IxO5tqnaH7k3_FNwznNj99KB6DQQ20bwqoP.GYO4__0L5QNsQWmHH2h9xIaGobXJpGa9hCFiaJ1Cde.mcowTrbj6ZEvpmfG2_fFDZVodh_Cunrjy3XoF4mxWtmoN3AyU9D32_z_LBPHzEaZ2N52zPPI1DD8AvcxFnST8zfEtonJ616bzGmfow4PwZn4a3y1IMWmJlDmpFUzsc5WPl_1d4MjlNr5hAENCjMtAhBwhBLySdtmeJ2TCjB_pAG.fYOpMGpcWTVVxt_FBVodjaw15Hys0G7vNe2DgufQ4.mj3zJ28o.DN96.YsIE9YONe5O6MbkhtWh09IY2uTsd2DFPGYlVgUnVbRnbsmbgS.Mkvafpoqmuw0kVaP3yDMf9xdV_PJzbToyi69DztGKPkf_kTkA2cbvz0hLs5ASeVb37dWfLWzJ0a7WloLeXOCtAenJynSda5jeetpLE1Lll9U4NE4l5JhfGfxu6_ZAx8ScxzPnKSNPCICs.jT.iBq_gCPTVxtJHUcIDo.1q60T7834qfQW.pw6D34PIeyxYp_ltEz8NZbOLaqX7vD6G_i6YmFnNlyh6fU1TsY0ZvSWqMcaqyvwQ9rZIKjGSs6DFURmVlldrNpH5DLuN0pLUUZiLRyogs2TfAOEpJg_bu5eO4V2sZeKGGTa4WvtlG2w8bJCH_c6QTdYySvr04IowqXXUFGUaNP8AfB7i4mYJaGr7yFzUoMtDKBWLhlJ19FgNmi5xqwq5PugS7he5mXS2tu4GD8W8TT8K9fii6ZIEH_mNA6_WOJ2O9t.GiS.XbyBMO0b6bRNd4hN.UVWcdlo_v3bs29kjzJz3sQz87w9jDKvkk1lwARxyuQ93IUzSfLL1K2KdN3X0amvzHiFkviEgcknhL2q3gK5PjROf8ukNNsCi4WLqdeviZ_9BEpxd7JEUx9CpS000U0br_U4LLDLWNSves9al0O4DKLU.MJki9bEcfa4GakJDsBCj9VjbwnuNWuj.wLK_TrsHnAoOfCsK0EqRax2mu4O69GOK0gEvC9mvNRtrM6FaSiTZ._hlz80ylD94MC4m_7hZ9hO2eNPmpSHORULTkwTb0.6Z0XuvfqG_wSEcRqK4NgZI4CPH7xPuW6NVR2vpBeXghVP1bKrAzpDLR2lqpzbDso0u.CKaMmEV_ijIcU4lGgObXit11J6ZmiycTPOiBBpcDtiqqsITUmY3gEX2XuWXYF.DRpZkE9QDX3oqNiI8g8aeGgxNtovce4HqakOGM9Teyl1dAUi6Dnz67Rl66CoVYs2FaOxxxwCQnZWJ7ZrCbKr1r780BB6bdkaEGM_rYO_PL_3FHXyguIzwMW1vIqnMfS8x0CgJvtQYAYotga6rhZT9PXsAVrCiHsuFHQSlF6nyrp5OmJCAn3u4bY7VC63RxdxDQ3n6k2kZ0bLuEqWtWztkiJwkAXH.f4Xu4WwwBTftGAsNafl7rhFApQC0TDYaWGcKiARB8j.K0I6b6_Men9beln16Hlme9pxeI3W.LPAsWVdHeoWeD3Cb8PmwHbOUtVt7TG.G2kesXjcnLFmZ1Dku5wo9DpCcaa1o31n4fCEbQ5Du_N8an0AGu4ncgJFMxLxulK9G4BbvbKfPBaE7yq57HjseyTB9KnI7QgWLauLHqv1Q9Fucp_P3lgLaPYtQ.ErKL5k4IVUmx6yfIi5yOgx3wD3.nxMBi4WqwRR8QIu3LbeRnjaT7s7qRSkOHyYvSicNyXIJowYilej4yOyihLnTbpUQiQM20cSG1zlqTmytS8XcW1lpxhRFqpBt_p3Y0YaNqxM8vmwGFtxQ4XUcurSSyKvJXbA2_F4frVy0rpOu4oqABuNS55riLeVelHlCjktw_U2tV8So5ee8PIqRUtyXBLLFOW7D5ZroYrw5KyPG.Poxuc.5Ln_tDssQdClLEoVdKGvsuv5XsHDUgv87PMnijg.yViDF2jVw8wZ.mdRNCgFcVG9_90ksZVomhd72oV8Y0qAVlFzj7gw0",mdrd: "pW28yzgqTHTx.n.CLMQp.5VwtoYltL.J2rn9npQ3tu0-1739137595-1.2.1.1-XEuTPuK46hVvLJa34rNhiONHPzp_wRCQxjLDrAGHGD80ldx4L_nancnmCQw68hcDeGUkWGor3o0Q.jSRINK6LH4uqgam3qv7q9mAb3PkiXdurwCq_sZaQkCgnIXslhQ2FK9qiWRhR8mz1yoyS3Uq5E.mjmheed26EZuujMFQ1TfIiCWo74crbwncP925GvMuW0zjLF.z6KlGFvOficfnwu9eFeSYAIv2xsZLbbbe.ZNPwE79WJUOrOMXx3k1kINNxsLGFKlKixf70fl4.wR4Tsa5uBN8QF98h0DEQeN7Lc3ORQlJWxs7aBQP27VvV_VaEFEtNACjuaOEB7jLNCPSA5jBJ8RMICSP.YdwtBDNlHiXmivh2bKpUUk_KN3RkY7nP9nDhapHwgvo9LDu3E6aAEsBxmqyQIPLKn2U_8.SFG_qdrsqlRFCgXWdHZFTZBuEEGUeqB4aDij24uV4V44kAAwhWXTVQqysFDkXUoLgAfl0HeYDRVeFTJBPJoMybAAtk0zwyLLsV14YK2KQKYlHv6lkYxXArqqIDcQr7WKzBTSsIuQvcxtdrx2gqa8xoIbWVEYhylpQEGgEY.UCZ5Pxt3uv4O7lZyJMgX0RBGdsSUDQdOYLoazeNwNsv1S3i..6boqyCDKI3j2gIUpnLnMSY75CrZayh1hqtoH_AZQvAclYQb21qSSYOjXE6k47QUz71wC4aHZlP1ra81MXIJw8mFcz0hgrWc5l6._pNwXjjPzkG3aqOYWkKMoihDXSETdNrCQi2_zlUraYUt19YPWAF7t1XnXhg0pfBs0.tr5JzEw3re1iD1968mUu0t1dIQd2U4G7Atfafeu2gTHbCi3MiB4bmJUIs5oIaEe0UjkVZg4nAHeNzgwoL7e3OQ4f7XzncbSSH5oHEjDJjuzerGMP7CmNq5wEcfp21HhoZCIEMM7biVNlMakX8Wczx3rreLHHvFgu7WY5r96A7WvgocptizU9uzbW3FjbbEZXUKzAEN4Fps_7HR742pqjRkr3i5CZ6i42lnu3Tn6DsH372RJE3C_LiyZvgzlWB77STL.OrEtjGOfGxrpuvEzSHxh_Zv7aNxUxvIbQhlgnIqAa0uYlYSiLEu7A_Nk39RJzh.zbKBbIaIrCerJFKmA1ZazKRpe5lkZ3JG.SbhQ.EbBVXKvIylGjUqf.DdilW.XJp5WOMmIZgvDDEnRR8CjS2rmgQr7X2Bjg3B_vclAUeV2P1FbMwuxV5WX35EZXJV5_aXbAfbaXYT5yArtlgfrBYG51qjFwLv0Mh8mXITtJYETEa.h7LbVIiJOzaVJiuOQTjC9hPovEV6SbpT2tJBKCt6oMnVyLykSR88SsfVsXZtuc6D0q949ojZnjpPzoyIcJqKpgqpJqFYH1_YUsGnxF00rJ9OvEwXGmmsU6caxLrHJ4.Sv0a6fHgEnDTYPRHPgWlwz1ITZnudQLyqNvyVENwiwYltWDAGXnZC9KGY.K6dmsGeIV6XRINH8i8WvcPhERlJAPQDJeBwFZN9qpILN1udxesPWJ4BeypA21vMfv1xD4D9_yVfdyMoKqlA_OG_I8MJcuMtHhwox3UpS_zKvLtiL2lPMXLWlnRGnE4jHk96.iutWQO_ttiAhUJpKUUFcEk2wQ696B.Rox44Hn7ScRiBoiT1AOCS2mMEn9Q46MQma_SPZM3iCvCj_uPSdBc.aNzQtOxjoIotL1tHx3aGLVwpAo2BAMAdaasPgX7l4fGOaDe0xrZ8gjdgkEdHIy2MIjF0Fv0jONkFDAxZcuwqMbB14eiO.crlNL500kQyTRC.9lcbZXgg"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f70d93fabc5752';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\/2016754398?__cf_chl_rt_tk=zTHneRvSvvXDik.LJNiwryCRpCpsqHiBDEP_bQDMqtQ-1739137595-1.0.1.1-r4k13aSfZtQ9zvw7R.M2gi4eb33ZVWJRTrLVcqfrF4c" + 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