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-affkebtdb.mit-edu.top/post/6380429571

  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,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMiIgaGVpZ2h0PSIzMiIgZmlsbD0ibm9uZSI+PHBhdGggZmlsbD0iI0IyMEYwMyIgZD0iTTE2IDNhMTMgMTMgMCAxIDAgMTMgMTNBMTMuMDE1IDEzLjAxNSAwIDAgMCAxNiAzbTAgMjRhMTEgMTEgMCAxIDEgMTEtMTEgMTEuMDEgMTEuMDEgMCAwIDEtMTEgMTEiLz48cGF0aCBmaWxsPSIjQjIwRjAzIiBkPSJNMTcuMDM4IDE4LjYxNUgxNC44N0wxNC41NjMgOS41aDIuNzgzem0tMS4wODQgMS40MjdxLjY2IDAgMS4wNTcuMzg4LjQwNy4zODkuNDA3Ljk5NCAwIC41OTYtLjQwNy45ODQtLjM5Ny4zOS0xLjA1Ny4zODktLjY1IDAtMS4wNTYtLjM4OS0uMzk4LS4zODktLjM5OC0uOTg0IDAtLjU5Ny4zOTgtLjk4NS40MDYtLjM5NyAxLjA1Ni0uMzk3Ii8+PC9zdmc+);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-affkebtdb.mit-edu.top",cType: 'managed',cRay: '90f5d1b44af7394a',cH: 'oQGv6lqSYNFDsC1eAWgV9z271xquTATgvqbOoNkyLtU-1739124657-1.2.1.1-uXIf8cZbWgsKB6hL3qv3uYlU93awMGN0MM6rHk6O7J5JfnXCwJNWjFD1tVn8rnHa',cUPMDTk: "\/post\/6380429571?__cf_chl_tk=Nz64RDXyFyIWI91.eltry1n2HRaYbeVHEGS6nBrw6So-1739124657-1.0.1.1-bQLBhpisE_gwyi8vCzz50I2topyFCpWsQOAcr1q2OA0",cFPWv: 'g',cITimeS: '1739124657',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/6380429571?__cf_chl_f_tk=Nz64RDXyFyIWI91.eltry1n2HRaYbeVHEGS6nBrw6So-1739124657-1.0.1.1-bQLBhpisE_gwyi8vCzz50I2topyFCpWsQOAcr1q2OA0",md: "0jSorKZPTJKS8ciiMhokBzNlImsY2gjhl9n4ESYa6e0-1739124657-1.2.1.1-XBhfMZIbp2btY1iFC0YORP3Tz2FXw1mzXlC8NaKtZJePQ8S3r_1uZl9gEHN.BC5Lu6W.SAF4oZL5WX_oAfT119Os3t3DzNG7uT8mSThAO26bmAi4A59BkL4DlbnGJWxK_agSRXeK2HVBBGgVtNnO26ga8vFw9wZwZod2yCswyd0TDpH7PET_I.3uXYZulfXfJGozBXnZn82PIEHbcEfqEQOpx9aTFVX1WAfjlXLXPcazPGHCJPGPUlcXAgosKFAOyJxODrw_ed8xAVa7UPylAfMH6MVmpqRMR5GkbsvfpAXi8WgU_QKUwluAI3Pf7HnfLhZarCqUwam5wB01JsP4sTkodhziQ6Dx9_ume5pWi4k2I9I96aHQnyGXSEVUKHN8nJJEGZDlzlOUzDGe4_ThD_ca9E0YG0bv1UxETQxjeKokIp_oVhvutL34wbNcECBAjnbZW5JTtuNocRzJdgXov6SDZRolTss.CMGI4aR5VoUtvsbtZtWfIbmf4C62sLjWRvUG8Z1eqUz.XL.POn_GffTQxP1MBu6HLGHF.nk_dEqT0p354v31AEAou1EIJFDdSDrPwNIXhDjWq.aufP_FnZl_FtX.aEWh6RYPwDuxxRTfvnntzGkV8Md9YiJ1P5Xu5mgY.DKCGKxp3HgVbk0DJNJL5SUydjIt95eC9.1VIsr4sm5.VvCZ0vPqrPZY.Td0BDCVVbqxGMjlOnmOiYRj6uoKkOSO1iLIq_bQzAl.ngn_lOSzPe87mYFLdHZDicXNduTiXbPyAzkp1egNsrHAmrHaYU_RndHJ0Pe.JPLBZ7B9tydFL.ie3IniglQrabxa_IDgrurnmfLnaKCOt7svRUuX67wA180gAdthPlKk3cWr63xdcDUTepSZXEyMY7pX5uonK5ESxZprQukOo4_28CaxKMC5HwGtoBXR8usfPa4AmvydSqGoM9xD9UPZkUXkzUBCFKWE_0.93LoqUFsX535q9udkx.0dLaMCNkgCS5R7IdahtHoSAOa3SaLP9u0H15yTl0wUivD84eLSnpyGKTz8OqrdBGztGufkYUigeSWpTk6MS6tQg1js3w_7mHqINHJU9Cui1ToFxd0TFlrlCIyHCU0klm6AHXipn2z11z2Q9doacZFChyGLzHbdsn5CDnhvE0yqyYubC.12yqjRqPnHxrVcOrp3HiVS9faJOGdGFpZUdQeu.VABa7EdYSE4qjIpkcIUUAo7saYXWs_8OLPGerXcnyZlKiAnIkoKJtYjuJB2Wkg94ycCjY7HBGYUiNYqS6og3dVkGaLhlmvxXhOr9zB555nOmEHVxbgHmV1eQAFs7OWWVnRZK0T5Z_DAmT7FphfNPalcIXKiIqqsfMG_eomTo.AP1GirTIaz0tWf0Dk25caBE5sIwi.FOE8QtqclMKo.AfRI4Eijnc5qruK6BAxgMlbCZKK19L8lxC3KjSV4.LYstV1HT5wCCAiB6Df3rtxMkzTZrZmeSW6XxB4Q97vOB9Ct4Jfzbwsb8C9G7s05AyS05R6lkbNuKYNW3uFulE6j_32Hd1sURxA77qgTJAcUyNGGSui7Wv45XHW6ixIsNU5GFsUHvbi.TZTOUthPSLhHQdU5QueFMmCiQMKBPgyzWdCzzGS0UlH2YT7jS6kcORbqjZ2rRv4N4baE8gUabytyydan0LWR9Lcdra6EH2GTWLsN3O46P7LCewRcRe1m.n0Yj002U8ulJnvd1qr_AIKjtHH.M.EQo_T9mcrFre8gc78ZLnEr234TCGYAAz.GBEPmWkr7.PiAf9I_TnhfmCVkxPvreVboyGUqrNxDy0g1GOe2DgpfPQKuF7Sx.fAGLvxm7DvEczQf8CYkGKNEalwnMe9PllPiFDzOhLctb49ATnl.48jjJfnf.Dqm1_rUpyx5k_ycKLu68KTWrCK2QC92yX7nXf7o5C56xa0wADgzQx_nBTsawFOydsIvKa1KKugRITzM0KBAz96LRzNMw_HBegeD0mfxaXD.qLd_Q63YJd1G8V9K4WdekbGziQv3Hw9julCXlAYIHycNP1I6ygfAyWu1OOHfxKkYORLXxWc6P7R8PpOtoP7ibwJQ2Smoc42XoV5EHuT4J9kGDDrVFXZtbvKLGrmuCubgeorMe..BNgzBLZwo7vqncL7QBGkrquywtreG09uruv1lZ8UZbPiHg4pWaNWU8lsayhy2MHykAC6Q0Ik5T1383luXgMX.pVpS8lQWtzztPyrC",mdrd: "KDv5RY2BOsWXZF7Vua19iFShupeHX3tG7nOgkn6tcRI-1739124657-1.2.1.1-qLuru6H_g.y5dFIii3K4F6cW_1jybaSaO9l_OoHp55jyT2dTLc_zMbAoJAGp2lMKspOFvykFPi3ouOSypI0d7Gy6UgI3OFLUKBBP2WJM415rUVE4FwfyE.iNtt3SfxTCtmpAWr193IWVIuTr1cbl1q3CqRH1adUMlL6mozp6DxTP0HHWV.VZ.I0wwZ.yDdHXihvBDnI4JIITMdChdcCXuhf_KtmNSiMSNL.foFK8lPg50YAB3vTldeUOBhMQDLDNMO49s5Fzr8PGdSdqdi3wCM.3z4aOfm2yW..XD.gsk7NvfUG1JE50ZSFo4CBvgyl2Wv4sDRrDGScqWo_L3gAQD0WZ4wIbp.SvaS1fQytg1mzmlvdPsI1yffvO5I8DMM9D.Rt1tksz1SJCR6AazIG_bFcwBVEwkK6lkLc0_IUMg4OP4eFO4.bTp19mi0jrrwLatR8e6bO5eIe3dEh9rDF1hyXoFU5GDRQXajJX2pqVhFghlN8WqiFxC5WTNC10B1hzwecKseuddYRyM7OmbH5DfIwYHSdpHzBC0hhyh0M.Al1Ik8nHZiqCV4p88txSCBdBhVWdQ6XPgPaPqpQPTc8lSeADQryL8PBnyFqIagYdydRmJeEy2upMpPZK6XkBt1BtcARU1GXddkMDlqKRKG.apbxdbxvk6i2BTogDroTMsVKmpN0XyGUTwX.eGFTqXucp7DwkuBRU8Z1lQuyLy5oHmK4zofmj40zuv7IQBSR1_VLUmHg6zFB4CXVT1vUNF0D_6lIChctPv2lH_xuI5kPA0Q5_pxFaj_hes.lP7k57pE3ZACQxOQ_WZL_WnR7KLvXq9KRjaJvt67gRMJSQUzg7HRQvaWNLYFAB56Gfp.Hb_1xYNDcRRTbET1w0CsypyGQRBSwSWW7_FKO_mkRmMIGyJQ.C8dHxdkLwZnhPqYXKzljCc8WQiXZ.nRM67ToZrqzm0gcfudLgUp.hjrsvbIHghSL3v5q2TYI9k7FQlaap9yc2c034ptteSQVyWsWOl4QjqWZe._9PCMKJGwpbw4nXiZVsiDMAS7X_7punidS.6q1GwptNPowo2RoYfTh3ranwY7mdM.qseSVNYjHUXLGssHuYjWBeMqlzcWqwcDSM_t5JRyLBjoNJ2I6MFvZApnsNIF8UxDjJ1bA5c8nfA8yV.r1fRMx6_rfh3YxRSuXS7M6NpbRntiG2APSR_3jQ_eryY6DWCceU4U12sh2vYs4K.__1NlhlPpoRnYQ9oNSMNJHTBrfuJAjQ9qz9wG88.3oWQzAD1ctf1jWzQlZY3C9qZEAZjDd4K9hrDhY7VOQpfE1YviqykvvdPozDWdnAw4._PepAfddTjcnBg3e.dw8UN29bD064L_I9OBw7DIrSTOnpb8MUBO12tIQHkADwFQXHXmz3h_7fit._nWYtK8xyLE0jLz1273bBge1dqokOC65uzS4mt2XxJeExAkfxLNTqC7bqy.lqCN7rOQPDzrzEGSGNBUASSFokrAqdvxXxG_adgGpYsYrBNBHuUCoLeWstOXsvHlKwGnDNfAfqD_syW9Efg2g7fUbIXFpaTEXjxkeB7Bb8WM0QAC0TJdtxC5UBJoRwsFc2p913IZgN4vnuZUg7bf_KxOJAwIJF5JbRm7kI_0I2a_otyddjwSIPic7GFkH3daWvYqZmhTZtTtcxhXV9ln_sTe1nSMH4kEH5V_MY8klQR0KNFRC2sCqCTlqTiU2eiNEoHN09VrPC2xiJQH4qtPahtCgp_TB9GnBDD6WRD09Nwkgwo_vfpNX2orsXO2szeRWJ6rVWJ483wIpbjQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f5d1b44af7394a';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\/6380429571?__cf_chl_rt_tk=Nz64RDXyFyIWI91.eltry1n2HRaYbeVHEGS6nBrw6So-1739124657-1.0.1.1-bQLBhpisE_gwyi8vCzz50I2topyFCpWsQOAcr1q2OA0" + 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