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-aff9lz9ot.mit-edu.top/post/0683472591

  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-aff9lz9ot.mit-edu.top",cType: 'managed',cRay: '911045b71d4244a6',cH: 'sl702wRLdwrU7UbMS6SVG.31H2NE8Sk4j0FxCXgkv3E-1739402038-1.2.1.1-asfzAcYax90L18f6NzuekQ2CHF0YIlwojiC7rnscHF8T8yW2cw61J.bwPCrICZro',cUPMDTk: "\/post\/0683472591?__cf_chl_tk=EA.ewrQ15frLBzrP3W7Efx..2JLigAOUvH1TH0aK_l4-1739402038-1.0.1.1-q1BCx5d6ThGs8EtvR5W9p2oZ0OrkXF8l9Nh95XBeAcE",cFPWv: 'b',cITimeS: '1739402038',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0683472591?__cf_chl_f_tk=EA.ewrQ15frLBzrP3W7Efx..2JLigAOUvH1TH0aK_l4-1739402038-1.0.1.1-q1BCx5d6ThGs8EtvR5W9p2oZ0OrkXF8l9Nh95XBeAcE",md: "NaF3nbW34G9ztCH1jYqmYF4Fk5.pmQmyFanxZf.XoGs-1739402038-1.2.1.1-91cpmqJlg3w.mBuyUeFNmwkxrdJC0Wxj.r1Wc1sVfcA4fyMNUDtbTuKeuempWhVUInGH9Dtnmly4jhvf8uID.KhBvxTdX.fWwsPRhGG_yN8Jh5_XMmsd6FzGFm5RhENTjPPpwivfTJSKOPldKVeqtQk5c6gfK6LmtXo4ZUitreWw2CzST_b8wN23sLtMZXUzDZ0bdtGzdeS.93qmobPHC_O.1RK615CesV6UXC0.U6CdIkXJ4P6R.dbcpWLY86RtcIV8BW1Oi17L0iBH7uge7r7s9IQscFayfQQFi5ClTPqvmOv_9A42U_9x2Rpi7XrUc6bAqmvTbBlD0UFQClgwU47H2x58e_bku7rfHtuRd6S4j2rQKPuRbRH2GPsS1a9QYR9nyChVB_dXpKGUj5SXJUXm6Z2LusFoQ9gjDQs5kqMDvJvRgvzU0iFWX1librPfj8UyS2nGOOPqk4CxtsMVbI_qIYpy42S7VaBsU6ziEnQxIkGcJ_GWpyixar2jSwnhtI8g5NKywhbb45RHDYG02hAsoi11U6UTMSgGEaHJ7TyZHbqpwSmEb8tKFgjk4x8ujx6BqepJGghTkKbmT4286JPKmxajjRUYtC73.ZMvDa25wSdLT6Ka7PxsikpsgtfD.8OHQVIJh_10dXCjnLagfz_NlPH6uvRR01W4KBNKS4azzzRgRdBxJEUS3Eq2v4UKk65SKlHGbtSThjtbDE.U67R2jbzgkxkAuslV.JQskpD9DnZhvuN7tM9OJhXE2JT4RvJy1WTgVaf3Usra4ShF740bMJyyI1DGic83I0MdmTzYeXrC8TXyKrYI1ag1G6OwRw78gLmhkXwVpHkFmcXjwQ1clcmajBXj1LoO3zWddqbhbyLrLHcuLhz_3Bodj28JXs0bwv73gb7Vi7AaTB6EHHKbM.0V7KBQ07PuAcuEkKGF11HvagOS0tNsp1j1mMyjMu02XyAaR9gOCaiCIWuFS0qft0QR4azUs8YcJ8C8vSC8lsQrtYdlk0jXtkoxnTl5sGHpuTYb3D84TK.4rSt1rd8YFTMCmsZ8hZZRbAiPagHe0wQeng9jVC.79vL5WLoaT7VZ3TCNFrIjTOvwYc8MLIdcYsI4DIWbkjJbBNBoMe_jZT7Zh_aSVzB8lG1SHk7igVTddWaUHkw4WOnwQmfzbkDgWx8XreQ4i_5XEVrEihzn5DFcJ.B5uludzXnhvyDus49J9JiAQBxqE0c8GJQfKyiTTQ7_LrfVhe2Pef8m.0URrVYPHZvHuuOv6jkQfKEuPWdd7TEEo_ZrUvZVVQLqxy680iakZh4PJla_LgIkK8_NmlXAdgjQ_uak5j7_uyiYWHDfQq8hivsDa.oXvOaVFTIjLM6lFK8Dq486o5mXnxEqcCQbHUkWWYCJXIALIAHePLGr3Syq3eOq3n0KmOSQaSq9Z5TA8tvUXG42tlnq3jqx0y51lFjJ8mynTARyTCak88eQiaO_yliKh30m2shWUaap9r_KwxlYhMoLVyGSkmusSOwNunebZ9aIWE6DW2Sj.z7mCpXy8g14xB3ERrUxqD.5aP_TTTKfgPxtr.a1ZKj.GtvZ6apcX8RAnDGcUu2r4o3ipG39nkT1N68YwNuM7vGOvmF_opKQQKVBrSJUrCfoWg4jIDfPWHMSkjJS7znEhPxeD5p_e4EZQkb.hOtQoZVfd1A2m4hkMFQlKguu5rYCqUmBnrumv8ucH6jL0LvaXYnZw9FBw96nDusk539a580OdRYFBXKbuBgTG0BBaqNr4bPpK1Hk3yFYXgDieCRE.4TovNF28Ct0LKWxrZNBsfe01iCHPT.nAvQI4I67ZlDvsoSf8oVgNerTCYJZpkkd36wAVLSlZB1FD9gKpG6WlBaBpszLeQxl_UZU_wfG0xZIf7XBYPxNWaZJk._aqvY8iZwsmrx7ZoGVqEMV_opHVTKgc418rG8NUjhY1eESOWqeP3cRCG93us.wcioor9ABQJQdmG_ZcdEanZmpRgJnC7edSDtM0CxSqC_GIFZ1hiH7ePOkhqrtqN1iVng8i_onyqMbYbYg_E6rl4.a7YOaVIuqVOvLTcacRaWpbHwtqj3lnNu9vXaQ.aAWN9KosFaIsrxiDjGzsbK4Oeew9zE7iQAQYGhSf9M2umZUEr2Qf4Qbs8y_PTe0HhHDTmM6O76r34VyOsCQrBxKBjQeSLMbyl8FfzCGz2V2F8vmDKNvwS7SjaU_rRY0sFKCMQtwMuMm",mdrd: "ZLUIM.e3t_VLAc_RUAPJTwoqvgdT7RXUFrXmKIqYL7s-1739402038-1.2.1.1-Rqe.6bt0olWex7zUijuOuvFksyVYLlf1949mzT0U9YfhEOeroRBzLs8xhLD0.e.QxwhIeS3ly.q2AhCCfqmRzSKWRCbn5WCptW8vQcOpmVyKw_BfDmX4lRaULoWlFuFl.HeUjUVMh4D_YAFqsaVq7ycdoFuyOlnnl3if5fZjpHPq.wLP9hd6jnH5nTy4PL9UxWB6ZotFgrOTo7_zz0Bpalxo_Q3RqoG4Qz32QQV4oSqUFC.oJFlpIKrRSFRbRg9qBVjUzA6F6qJWDkfGqLl3OkhDhPgcgZkZ669Y_U8XRroyKLcZFeqFTdGHb0O9xqF__ysQalHOr6D0ZBu9LFNoJItVGGQk7FJsFTdTIR0ZccCL5GIDPs_oe_fxu02cbCieI5zDLERoJzGXF9FYDkhzm90vSAbxgSOB4m1YVWyDypopa0BrsN5izylxLSigxhdHLgi5oCdgvuzHIMyOagtfnWnKWs._pV9LHMvgO9IEY_9d3kZmbEZNtYUdaxhja19VTa2ogYt2iS4kyZqld8LCzJR6QGHyZkSIqA_WnOBZLaTEQ8kehICRBUHF7u8IoBkPwYu5u_qhUmaoJZAa8GvwuBWfSzs_Kmv.t5FfoWe6aGXkca9a8XFBIiWSgTZQFfcpeTBBkbwwOEs_prvcb4S_ZkchxgkspAjAo_x4tSVOkLopdPvqcOuHU.XRBJ.xQlDI8jGo5a68owICGAVZTDzpftFiDuYQg55vlVui4MvkzK3xKm69KkAwSKfm.YxAq2a0qRvrLGX3PkHGZqLpyfLrEX0YVVmH.RlWcz3R4SQ7HgNmvRG5Hu1ZpNgjnoJHoCrVPZXUntqbSMH4_4Qcx_xvB_J2K.vCgJ1dG8XmT.VAn2UQ5r5YMxIQrFPh4XLNS84orXJzOLKMczI3bJbteIWFTRK7fDpwYqYOOkob53kjSa95j6rdOPwSUp716mk21m3YHx9pQoHGu9RAVtoWelxhGDOHvma1ZFDMuKzLvs2MQqL2IhSSZGBADURSinzvjGwCDB.VXPKrRP5_Trws05OTYuxKy5rbHYjpZX4eNyzEooLcUmSJTVh264NdkvsAzGvlOxzf07542qPa_O2U.3E5IetGxKgBeJl26IolFqa3NN_m_SCageg.KBmnyW5DLOeiuAPSJYZ9AYs51zVuPWkecFI217fXJJf6_G2Al2SGpjX1DPqn269wmUE36WFS8I8apUQlRCJ7yxZfdUXhATK_b3p9XA4V49uKEUH83s17dsXvIdRKPLuqiJnRKI1JFDjj7xLe92GuQhRkYbOxVluv6k1AGL9mkkxRKYLKVG.0cmMKOSDGct4cMPF5.UA2KeVTspmPvs3HMNw0KqO9ZInQcQO9m37asGx9vSn2hABLcxHLLHM94x5MkGoBbBZ7nW4MpvIwBidjCSRanjjadvFNvf2mCEBwth1QFnzk3_xgbtn297VZwarI1vb2lhCS_t3qEUsKDXz0x3e8kilLjEdNSCtzI2JFj1LNNdiMcsFu4PJtHVdTI1P_BEUe.XMjGBw1KtwuO3.YI9P4YYAnwp11E2Q3IeZDEy_Ohrob2Lj_V5dmT9CrAWTpjLZPsT5yw43MAVO8KMm_wempVZMcNTEEJVzJXiXsTXDGuLtWwnl6KKdWhAJ6PMcaFAnwrjAejW_KDRWZ.RkagpZZ6xeUETL2O2CsnM_SScVY_EMLVd5d_YIKt03GDUCC84kKST1D0RN4DzBGDfwAlk10OCciO8dEvUJ7PFkm1jrGc_jnwKXDNpUtEfptBEO2UzjNEo2H1FjY"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=911045b71d4244a6';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\/0683472591?__cf_chl_rt_tk=EA.ewrQ15frLBzrP3W7Efx..2JLigAOUvH1TH0aK_l4-1739402038-1.0.1.1-q1BCx5d6ThGs8EtvR5W9p2oZ0OrkXF8l9Nh95XBeAcE" + 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