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-affgfjkxh.mit-edu.top/post/7952018463

  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-affgfjkxh.mit-edu.top",cType: 'managed',cRay: '910f7349bcee6884',cH: 'YnbXqbvqFIBLR5Zucs5X5qCrgwISzYXLnmo6plOaTjs-1739393419-1.2.1.1-i8ttSc2ay0pCBeFACHrP4IVsAE.kpDu9OCjKMp2X5SlOw8ExTfQY6ZCNrdNYSJj9',cUPMDTk: "\/post\/7952018463?__cf_chl_tk=6v1E65gRG6Rv7ddUfuwhGiDYtLIDHFXFGDIM5WgAysw-1739393419-1.0.1.1-wgG6lj.vnjt3VltABd1UNSWC__GCSe8z3HVgwuhGqks",cFPWv: 'b',cITimeS: '1739393419',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7952018463?__cf_chl_f_tk=6v1E65gRG6Rv7ddUfuwhGiDYtLIDHFXFGDIM5WgAysw-1739393419-1.0.1.1-wgG6lj.vnjt3VltABd1UNSWC__GCSe8z3HVgwuhGqks",md: "FRY.3peN6rGS8vaGDsLVYIfQC018tZRV2.TgaDHZ6sA-1739393419-1.2.1.1-rehv7XWl6UFY.gWdPxPWSlsMzJ1IKaJ1Z21cIezbaRz2F3hp.JPfRXzixWXSzbzM9Wwcce1H8ha4EIejkEq_2JFEZlgufUU1hgN01Vyx3BTvrc0BBQ5ejpKQ.pdR1LgjHDHOW4HQOOYX29s0gEpsTHDU.e_NiUtWXUxQWW4ctyxwMQmneY_CFKzPrls_fwwyW2b.POL18xyGqktaLNs7sw1vDgcJCEDVxQzHFKhlNCxatigy7AJhdY0gBXgiwEg_dxcFHBa3zoG3vwLV_vbrUo3sScnR9aUdPbCQCoBvQofq_LJL0zh0hk6DgYksqanFFal5nof9fLF6xkeBGBPECgg8e3V3oKbgek4kqAAD8QHzEOM.MxqFGNJjl3rsTq2QxQiGiPhz4ivdwupXirJmZ3EVOk3.cfMMFcxM40ZoY3IxG7g9YafVuL4ZNnoPLMVXL6qA5haqQ_8b3o1XYgpCZvWd5GgOtAnQfEKT1aai0qe_4CtziAzGl_jjQ2ZG2wZWZNoF8FmgdsHD7F47njf3HEmB57S1q5fYiUPI_TLLTYefaXoXzRm8phjt9.zOwhJjFMem8ulBPkkWIAZX7Dcb3KF1PnQVZnLH9FZYd9_IYpoda4jvueDd7w8PcCUEKmpl_AHCYZiJDHeMxfBEGI28BO3gI3BPux5zxbv0Tam_cYTaPV0S41WSa37q8htbO3_qmdlpeK0jPpd8SdIEtY1Bh2nokRd8PN0RMveu6dwdJOszyIT.AC9LrAhmAy8vWjTPIs94AyoevWmENvDdBrV_F8AAHJjApEscioUjJpQMLEzPe2d5aKv0kiIArOYkG5W79KqFhwGQheChj.Lz25qBazRWBlf7bEHlGiu4YxKgzO4CqLYAyIBwD3Rzx58lvZ7RlT9oQDk2XLaBDUBI0llkRtikqit5DswyoDjjjP_yAUA9B6qisGlszF4AMGqThzoWU2ElbD4yml5A9mWh6pPt0y.a7aQnFn51ymB7ixvxhTra4iZuLmjB2aQcwhlVfdpmgC7CUW17EZpJrDyHbLZso26L_BVdbV4Trmb0Bi.vDfhzFpJf3J4nOS.YjYOdmknoMXh3QXdgu0ZdnKJENrXIrRQZ5RmhTZNJmGN9H4s.Ch7AyhSBrvPDT2obhVIN.yhAbkYx3XV2bnkbaQeJBrm9ZOzpbJ7fNT3xOILzMwvaLtwn4.jY__JptZocmUXkN_aPjwlO8TW8oXK0XElg3sZa6E1MZe8mqIwBhntEwJG0x7l1MxcaCrQRnrJaC2u43czFl.xJHeLELkvPd1D8EOfgW3yUDZS1oD5j3CbUC5Ag_CnW6Pf9A5FttEvtJBjrXmB1f_7TR2C48DvLzm0LmOdvn4oNU.SBWpBP64g0DTW0_XRqsDlNM11cMvo_R0wKt8hT3sk.m2cp3_oxjo5AN_7q_8nsBEThfcZbqdCxbtiCECw5yMtoZbl0vMFd1O9n4O3Owvg.mdsmSAdol8UBiMDTeC3zfz1zTaU7SuunrhWjd5_mQxPno.vSDQSPz3VkrQNW8cU2TDOYMRTlCRkDMP134m5zKFFx8vE9G9PsIQsnXMJGRM5rS4OwH_qUlFuUgLQDdocmncfQbYaQ29sLnoivUOgsv8jHfl09duXshvPNUwoqL3TFK2sp99.zwFKAUEDBOxBzayfD5HuB3ZlbQEt9PPAg5GXQu1om1BtkU165SQYcDKNnbpcDhwUfidbzs3RJ6Gtz4i5hevbGZx87KNsDShKpqQtlsSvwFmqEkhvvtHZ6ZU4cO3netBeaPc.Zgz0.4KSDHDlEweOJFvprBcoMNcKWNmHWZoW2hKmJjfwlvo7_3oHAUXACa6KOyifxhv1oHmdsCmH0Ml2GSNk1d2FzCzpyBwS5klK4JFWCZhibuWsIM6yDHMDy80NMvf0LBwZoLKE9U5I2wBzDgkXP0uaxHkT5i_OpVUL0f5l6jCds78WulHsCw3WoEJPd9KOetoY.IGPG650IhbHTnyhSZSrfnA8Baa6hPWoXqZjvl1MGRc3TJiX8McECtZRnrFBIjDm35Re_se_c16ng5w5S9NiwAykAt_3421CBN64G9cjc.G9Z68Ulx4F2V4VbG4n.WGK3dM738kukOkKcv64yj.zEm5YdZB7uVcfROxNO.7MhfHj4NolYutmT4_VtFQQauTvWq4PtZQCb17qdTPy5cfbqmA_OpdN9MknKGOjjGkAbGQC7jQKAJYWYjYbE3HAxVx9z",mdrd: "9P1V5suytiu_hxgpMYPxAOpsV.nFCwVlF4.eWXABrsQ-1739393419-1.2.1.1-H0j24a5KMAnU99Zx3PuOSNxoj5Mif09LTCL0kPnea4DxnsCNQFc7xmpCL4UEdz9tlqOH4YD25PT.70kK5cl.0AxspUZqK9xc4ZPN2Hccsc9L1_z_nuPbPmDD7o7cAZ2FRO1o5tMlBQJU5LW5SM1poyKbTUF0o4iz9xt49C.4Z6u5aOBsxU4H0WiK9Gb2D4JfJE74wzrFsdhpL9MEKWnJhXNjYFPXZbp8pWLjGewZtE.lsDXMVHFKWoDlL_wG2AoQiSZtKupv0uNLuTI3Yh6xG0t7wYWrVDi6vCAZrwb62il1pNaVLBEK2xhweos4HV.8uVL._SDM0nmomhcKyjEt.9ORt9zZznNa_IlsKou8gIslUx.P3SLeBhGbovbzbx3qzoqHSCFDuLWpKItoVrbs9x0BBHV7NsSWRalW2W8AHOBjWDZHiJystd5bkapClaYi_iaAaVdQ.IeP5IgNEHt0i5WhHpw6iR7x7lZ78.7eL2fOquc_H_RQTzpeI23LISpQgkn3kFRLzLE2_99tNE1kTG4zisPSpTvr.8PetGxVbXasxyVH4Wrp0SS4G3wW0QxQYx0loxqV1V4VE50Vf3VmySzve0Rxc3naGPyPHOQtQHeTm3KEG_9dINdxs_T52_lYO9A0Xzan0H4OzukhSdR5V9f_olZb3GyyLHQ1JwK.yd.wHjowEzA7nhgdJrd2VaJoonxuwXT6BfgYkrV6JDCCNN_Ia9g97rLGZVf0aO1jeGBZt9ZqyYPn9ij9ZRJxf3BQVDeKYVdsNmydYheKbzNm1hxfWIbkBYBL2B9eojpAnQp8YsQJMp5m.ZKlX8INlIVjgxSnFr9rVJ4_5XRcvvOxpuHFrrc3RtSHWrrk7Pp40GB.GG6tHFj_9BcJu7zF9oyWCwBx01e4elrG4d73MIWdGLB9eyrkLSJVM1ViTtm911QuiHfdb7BW666LEeiLACWu7tla004A2NVe_db_3v9UKQS7bYIZpXF2cuwOQD557blTea3LE6bY71m60Oq.vYVQGdUmx755B8vKqEX016KxhdIKHsUKnxw_AMOHfiqrWOEaVBx_0AniXYwN8RWrWCg3tJuGQdjXq9gNn0CyuZ5OVd1wTjKA5xeLRM2ZvGuGNzb3Pk4.Ih2BIUeUyZNdFc3Fc2GWuklNOjYhxCZmPiCEe3xqpOon_Tn.98AyJ0eK18m7Ry_3cOnT4TfUUasWNh04HPXL9LQqCC3wwz.S59V1vsta4ryG3xo0zSNQFdTdm44e7R8q8U5Wzg_rbGNEC1H7.l7kLNYEbcHjLeSIBXyuywXMH2DvgEeQJZGsEr65IHAhdZUO2x3uk66jptt_WOz_i7tspC3IlKFB16nyaD0MqjqErRwcSLB7sNoNJ4JFfVzlWS8uX6GihguECMO.kx97ypYfP0i_6A3936n2qHneicc3fTm2yDME4BeNQ5AfPKT_WGay_XpUe56truQT8slTrAd4BQQ9xmc61X9NQS6iSnbkL6.C_mldLR3UTwqgeYko06lVdIOiU7fcRjCw3RpBSO8nfJBDIuWdWW2bTgvIP0uYCOivtY2YiePU5n8JsnsZfqq1cNW0T_01cyOoDq1iZjrwF4CctJZ6netIwlO.XlwcPBWKRKz5hZ84xqAJOF0keV3JeV..twHrLSuDwkYd2q.AsDXnzK4j.M.AJpu3oPKaH7kFYpIAJgeensqrlHnp_cMkUmij8uUCuv63r6dfnMLXENBGWQ.Aj61RWQjtvRdbOy3DWbRVf.G8HT1zeMjnzVfD56N7IByydD6O8A7r1d37MuP_wgT9agEGkPpcEDFwkBdVF1Z6shN0TPMVyZU"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=910f7349bcee6884';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\/7952018463?__cf_chl_rt_tk=6v1E65gRG6Rv7ddUfuwhGiDYtLIDHFXFGDIM5WgAysw-1739393419-1.0.1.1-wgG6lj.vnjt3VltABd1UNSWC__GCSe8z3HVgwuhGqks" + 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