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-afflw2sp7.mit-edu.top/post/7860231549

  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-afflw2sp7.mit-edu.top",cType: 'managed',cRay: '90f3644b3a25c974',cH: 'ZAcjX_vWay5HJ.Er606hsTSzdZ3UZ6xSPf66q.p7JLs-1739099204-1.2.1.1-_AhImGGDWDrfZiQfDLLoZW3hV7KK.1g51GPdzALnRh9h6g7ZPXABxA5dFX1oxpQ4',cUPMDTk: "\/post\/7860231549?__cf_chl_tk=S.0VKVvidsir5ujd.W8aNFxabVrP.QiK4vFxueY8oJk-1739099204-1.0.1.1-WuSu6.2VFU6rSbQVeEbOaDcn35gJne0hAhac4pzWWy8",cFPWv: 'g',cITimeS: '1739099204',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7860231549?__cf_chl_f_tk=S.0VKVvidsir5ujd.W8aNFxabVrP.QiK4vFxueY8oJk-1739099204-1.0.1.1-WuSu6.2VFU6rSbQVeEbOaDcn35gJne0hAhac4pzWWy8",md: "4.4QQo_LXRrJCMvfddTITVsHRs678unYVax73Thn6Fc-1739099204-1.2.1.1-E0UPXp1KNFlquT0mKZ8fSp502x.S7Ibih938osh6dbB8zOXgpnnf8wbfUChlt5cizz4elLTP5Ox9_g85A_MlgK1lGsMMQfFLYbNrtr2SYVDRV9VQ0ocqGUggOb1VxDsOo0t8gXr16w7RbfMbJ4fJjLP01q_SgQFMCVvvqff947YE2ZVWYk4v40orIvUk7s50_EnWL9lv.f16ViIeNtMXwn1zgYvlkeS2ikW0ANauwKKt5vN.DpEm9V43wwnBe7pNVvL7QD6uPLigx2zOaO9gTh03RBJxk9Gkqh8Mtsd6GcZiBaDCNrrgr6Rzc1.3VYlUyKRXRCLxr6_JpXXjl9bbuwfmR4xRUF4SE6hgacfeo2a0ckO9NBG5FnWPCr4tT_3pqTv3vFzovx4NoRI92eQm4VlY2SRDxUVomYS_OLyHZ5nwwVxtRgPRrGw.pN.AS7Ff3lBv9onDGauKCrGvmetThyDwCzqNY4A97XcrbweJVUD6OdoHtTYNzAfQtTF1wapP2L7aY6a8q2NcfQnUkHIimbJAexit6YLP6nvMSnR1xDYjdBvEePJVsSUuh32z5AD.HXiLqjhUp._qxCORU227Rc67fjJpL1.3ypf8ZogFi1GgO.qys8wYl_aR6axwp0zgna71blqi32g_vjOsbz0T8yU3VGSm4oLD.R43JljyyqalZ7RahX8XtXxEa8axULlWsnhnHaA9w1HfdVwoUM7cqmic5uHFAVNQmM36nYsMu3tG9fro_uOw8NmmE8MYsBP7QqKmIu.v4wPuFKLkdniGwTOrzjwccbVFWlLBrsylqIXk8IypY0R6aUMWtwJ210uF_h2wthGgocuOw3iookShFKu0UDeMAMSfKZujJAWHkPFIGoV0A98wbQBmOVWTh7sMhQTBnaKhJQvRQaQgTjcz2tSZ5pREIwlKypgVAUE3o4Mqewgg9UpWSQnjJqjXBcWtOG14ovS_weA4mxB9yfC_Dc5IzCHe4bUxnb9ILDxDMcFAOd2lWvInsyd5QYW9xNRCBBZd6wowvoiWrD5Ot_YVrKPCE4VYeGzptwm0rNNhI6i1az1TH9LpQrPhp0wqjuJhrtz5ks8XBzNw.g3b8jJM950UBF58Q7HIdDSHr6wzrkD2p_jGUGbQNSYsxOBEqQg63NNzIbH39ggst.wWI0icbE2t28UT9EhxXfQfpzPYmeYTqWZ9ovmmkbLoxZlqdYFLuGllcngdDcFHDIHfBvqlEZKbclwvPLGyFKYuAAvIKTpifvSjH6AC7euTQm7fyu4Gntrzf0yo9tMK4DIqAign5BBjLPMA3ZBxZmVer49hKi04D2xblkkF224dHeIigitcRpRtGSgF0.vq.McneXNE7yNrODvgkD8QDBwW7MtpK43aQcB5IzK_XWG81tO6irudCTzsXFgjd7ACh.Qn4yhjHUvlOXDOCwi6jzEgwTU4LdtF0M6rtiqx3H09fqjZ5JX7KOMExz2xq1YKiqnL_m7C4E01h84gRYeeJeWnWwIXo.WADWFwq6xTE_32qcYJEiU17dr73021tl1AVfGFtSwTg1OW.hXI9dve7g_jkjMvprZauKDavuHjl8IWiaMsQdfFLJqjqo7c0rfCvuMifTKYtp_RwzPoE4Jp.JUfmbarFdc0Kv2nBGDWvSNz.KN5aWv3aaybvNLxF5g2WEXKIiS1rWEHpjMUABfYPJ2bgPmTvyOc9WVUbMGchNS.4qbxvoVontcuwdTjh.aUqjlO2JACWUNrH63kdPnrI3f2kg4hlQ1L1U_WGojCeLsAXh_uL0ibw.My54GV0Rc7_o7GDuPO02YLjThv340sHXcmNN7D6vFuk_AMo3DcL2OnKghO_YvBXt8WvKrLY_j9f9wT4HxSjtLxGwMXmtkWRhoMk3XirveZzjOgt9mRa8ClWAJ2Mi9C4lgkoaIMnZhIluXvr.WSkf6MxahLNYDt42OjbmlTzHSawnJC8pjgHw.NhjDy6zyX530AXs672eN.AbmAm4_ha2Hkkhe7ai.2uNVsW_VJdRXfDy5W29mcKI8SzC0xbePLn2ExfM9EGGhlKp5bADyemPFRFtommd_pSWCPknsz4lgvhQMG5ZEqA4_79L0X8uMPxXdkfTSQPLm5dB5XLIwhJ071y.CR8At.4NXlLw62VoPAuh_iC6cT2DLbQr1glAOOToLTVY5w3KKSYEVmPtlj6tnc83yE8sqvK8WNd.EjTSuOmza44w3z6jcpncVw9ggU",mdrd: "b42TZIdtXmYDvvo1O7ycU1S4yYsB2Z7pISo1gFnrEVg-1739099204-1.2.1.1-ZxTK1uBE.nYLlapRdyLWCnfhoMIUjtqjVsg2JCoIjQThuLiAQeeqXyG0dMsHSQDXTZ36f1OW03A8b.Hx04OUwlbaWQNMAfG0IucgoYX8z7bI5Jh9OG4L_pB0rK9qFHZnninpKiEKEcpVcUAgFfsRcvsPKir7dL5VuaGkuZEJ1Mqkw5s86icQg_wNQ7S8kL439T9xh7zpraqA.Auvb1lO4oG3v_QyujRjiBgdzLJnEIDw8ywMZ3DyL9bgtW98ri55oqfD.T6hGeaUA9Qjr9zukA0lF4J0ivwOZEy2pYvvnOU32VWernaUqlFSbc3d0o8wSYwqllWdpGgWmDVK8raGoq6fFPQQhDU_9b.UFEjN328TsIr_lJ23GTVfCGLqbKIkBXWYbpKg3kSml4UxJvZio.N8RdIuWW4hcN57u0GiDBC.zGWJStsB4Yj8G9AbrQLb2QcZOobrJOXU7YquJPfiRZYaaTfJimuXo3iyz6NxrR6cnZ30uSyXjjNfDtidN1h167Bi_BuLIjkuUCYyGfrVZqdMhubn.98tApOOu0KjwJJDym4eaTfL_VCQ7fMUNTsks0AZHXnMUQHYOEPUgnEINL27A0aEsLQ3_5Lk5sBz6gsSOLfd.7XdzrYEYBoujQlGJ59iR2Jg6dd0Efn8XwIEAEs1JQgVRLwkSXNhLSg84XgfpqTd93HOg.iSbtLppQ7NfNPBOzRDBMKiZBRkCNzNuh0xNThThnZtmR7fr.r4bNEo_n8adwpI6Vee2t3h3b7EbtcM0.kP98WcKe8HoiF7B4rbYjBrcv_qOW81UxOwRsqf3chWqjoWFSK3anel6fW5IIe.rtdmq8RyNPTzQL7gXBp5rQWFqGzZFNMElg_0pWjrDAqBA5pP4x07Rkqh.BQaqNUGuHg.4OuZH2j6A8nOFE9MGr0LeGAGBrnmd3qkjiYts.QhEfwIrLo4LGfWFOeI_Knln.Lo9k1D3GCnvi4BWCoa1x4lSwocqaewMtRXnsJUKm2IhZ1aJvH1yp_tObjl39QUoVs65ayu_J3kgRFjBbDvm3PiSjHex2MNJ2MjqwkOhilvy5yFO6fuZ2bnAc3OiS2qOmgM9XeB93LsmOffLdohP_wQ3EcxP8VQylXDKNcTf_QHE.TS.pXtMmqdbn7u9LsiK_Vu2.ekRJKvt64odAMsGoaUlieP4mh3AtcSwyev78uypwlkZaJJOIGHMdEDRm.B_nf7Ea22n6pdU2WVSJz74bGIxIy880pxCm7OrkqNhl.WRayQbnt43i1e0ppS_CaeRVkzDUG4WmLDdZ9ahp4UoEdgy1XYUlnN5n_rFqcuQ2odt4G3Ffsbo_kAO_oIUhvaW0asqx3.5jR7FhPgmPv4ChhMqzDO6GnmHrNaVrO18jyqkgAI.8NC6h7LKyD0Yyi5qpitOz.dJy6AZGLAHoItPDnPTs42XAGQl29uIWSugRpTc1o2Qxbk2cngI6bYlCReWRwVXAMJ5uyu5TX4mzI3.sDRx6R4lHlcAwKJ51nBniAkOS_ZigME1E8S0nXnEFiZxJdWAsdWc5NTpMs6pztZhgeKtL8QsDO8.1uO8TEOXg77n8AHcgjsQmmuEXyC8RxEB_ecYg7uLEbVVDFnSY0qvB0eZpxi_1wO4wjCk8dSfohU4a0wyPirnVsjiitpzGD6dk8x9FYzLsk2lscMwawZo2lSIHc5kbBPohjSCmCqBKXiTiLEP7hRRHsy5VOKV0UHJ4s7x65SqmwY9QcBX.JZK9yAF9OkwyJ.uXXc2PK3Mlf8GmSVP61P4RONxETcJWyO78qnZEI4AIYqLDfPOmbnVFKPT_gj4gflnWlWgLQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f3644b3a25c974';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\/7860231549?__cf_chl_rt_tk=S.0VKVvidsir5ujd.W8aNFxabVrP.QiK4vFxueY8oJk-1739099204-1.0.1.1-WuSu6.2VFU6rSbQVeEbOaDcn35gJne0hAhac4pzWWy8" + 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