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-affz3ryep.mit-edu.top/post/7924563108

  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-affz3ryep.mit-edu.top",cType: 'managed',cRay: '90f290753e16d6ef',cH: 'ylZtAuIcJ2bM6DGrodm_dQQ.LMWwXHh3crMEYNAKpz0-1739090527-1.2.1.1-T3wLcy8k2K4hHQ3jQAaL8VS6k2DdHvYTyZxbHf8Nuhz_TGEZlIJFUuK6hpnZJrrn',cUPMDTk: "\/post\/7924563108?__cf_chl_tk=bsWjqZ3ODeUX6xn2dTk3ywrQM5Q4pzdzeWPE6w3Ez0Y-1739090527-1.0.1.1-P8xYy1yTVzKQFoFtAm7ch3vrivf6wbX4_zZ4Jz10LOQ",cFPWv: 'g',cITimeS: '1739090527',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7924563108?__cf_chl_f_tk=bsWjqZ3ODeUX6xn2dTk3ywrQM5Q4pzdzeWPE6w3Ez0Y-1739090527-1.0.1.1-P8xYy1yTVzKQFoFtAm7ch3vrivf6wbX4_zZ4Jz10LOQ",md: "zPpcPm9La0tZgBd3UoJqGR5PJv15KycfvzqhprV043E-1739090527-1.2.1.1-A7PYwT4yQSs_Mk1p_Rv63eUxu01d15SONcRYKa3TKc6ED.ZdpmQ69AHlhiO3BazKKJ9vmlzTBHSegI4ZBgsPj.0wx9IhLYmtN2yGnglza3Q1WTFWIH4OHE18wmHPbOfOSM5ZFXtx9dQUePFif47kW8XiGaRKeSqrZTKe3zWiySdhU7ctFksUfM15t1KrzW5Lz5GBdXIxGCsO.RwZ1VrCvWdX7uzM0zh2GWI9oZKynfj6xl24i1aWB2vELgrnsgKspoePJcsYPEpXPJcMAtLYMG_qQyKAahMsgrIiKSPYEoylYw_zuset_fJKfm76DwwT0lYTgjX_IuB2VDp5C5dTjwSX_UGCfCmj69BejVZr6Z62qm_xjie9bcM6V3TWKajuT5XLJTp4AQzrISR7.6.bxicsJfKRRrlw0u2CzzfdCYpVT0ulZx8Jx.XZ_Mm1yGcfGLx34.Zr.a5tHB1_YuCaCDhgAzUMXB2xC_GoSdPSdWRbXs99lynWzwj2alq.WhZz1bE0.9VZftDnrbnVaWfxPI_rNtCCKeGGNEJPhojmx1PcD8XZQQq_SjL4yaZTlW_D5AWRyB7BsdLVADAY_d5hQoDopaMZJ5w_Juid8lvhP32mUv18n5lCNxC7V2NFC.IrZIeUU5JN8wgKrQkxmgcCE4.od_iN78OPDUz8teeEHvnqOtM19rVzcxxKIoHbGmU6ST5m8gJ7YXMbdFeKob4HUa7RKK6PValeoVN3Z2v.VjtIRo1G6zYAzSYw3eGZAZJpgQBlgF7vu.ctOJVUZDwadoZs6bYdy.30a6qMkBZCeioqbCByCCslc30ljIFrhSXtFOIfL6Qbn5G30BjUtBCgHcnPvwxrRvDOkKj2QuevbdvtdYRG7PEJKM1xfzBjkRasiYY94DKab8kp_GnIvlpzYmP19hVcUeidWB8LhKuQLzEM.g7j46beV4KUkmeLXT8lNMHCOAwlf3H71DOh22FoQVbNVNeV7WVAFXzMk_waIQOoGwOxmgLvKNWyuvJhofWDjuPSyaIqslOA93tODE0Tm5Lvvv.FloRm6UJAfzzdmXFb9yI1NfQAkHaSYkQn5hlLd5KraR0geihBr7YQzEBVME9DKGlhnDmdW4R6Zc9EPEWuyPCr3swX4vWOhdoDeqPuteztO8nH_EA0hLwYksbK6EcOHcGJ6T_t9PtW9r.I_O3ZZpKz1GvZw6sB.GCHnWMMiNHYLldIW9tXVCbvZ74XeEELcpQsjVBwbcUwfllxtrgSB_yee.mP5.FHFkwFZIPFyJEnqZyR4.4seeiH8b0oBILcFEeEF1EApUfdwIIh5z33Jy_soG3EkBIdBrpEMsD4PNyDyb7wkAg6XRDMhqhil1MSMowTrknOJ6_eYxZOlpocL3LMI7jKJtWtLrpUmmMTSJeYOuABB5TGTmkkuSx9Ev4H0PmjacIisJtYwi_RGe_u2NSJZJh5q3wS0jTBuEHmukUYCoeOFda2Y0TrrtlvSTOesyBekTTSRyDwbMKL2l0DwpCpTmSVQAZ6X6dwzwl_eiHVTBfpMxwnqM4pDjr6X_VvEmcAzjio_wDRhKY0uH7zJ7E_MODOXxOcXwJbAoTV.jHXkqXDZixStDVH_3MRkVa.naIRD7qnRRcprAsJoQ1JhNlMBb5nNrk1S.kbKKDSxQ6OdSUUWDHjyqpYMOVEJAy.IpdQ1Ombcd2EKyhNx830bUYzttZajjsuyoRjPMG2M4a9lqWMXF1WDxGEjKAjZN4_S1Q_twXKAj_9lwJGhTRhjdrMXgSXq0dk.5R.qzJlka8H8qQ5QAhtlfcwlW3EcBS5psAqcNK8oKo.qkAkwL.fzZLrbUZ.vj0zIg7XmfI1BrYl5oUNxAQjQWo_K7ELGPju17tIjgvAzVwLHmffPnZN7yJa6uZcLbUbktdDC3vzAkLL1jCNSV7j3IMpZgstN5qawqgif.dJbuOwXwAeFUJDu5_e5KpRbTPyMwgH_x90aeGfTtej7MM3Lsc7Mp1EyD1hZu7OXAoAI9UEMBjRfz2rB5M77pWawksP2x4c.kTA4btXoZcw9KSeRseaKhkoWj9AhTKZCUAOcCpAKeGdFWCgYQQOJUInDDGCxLIDfn6Z2.h0i8vsojHYvT2MxSoUDJSZd5an8JtXXhkkaB7InoieAxq0Cd5R.9i_Uglh1e4I.aMyCngABd2L1M8BjF36tVkg9s.7gm8gAVsYwSXbtAhpw4EM71jAnmCwovqhfQu2",mdrd: "Sm2c_lDtAV7jX_14z2efh07VilLlE5nv7.j95UYpiFQ-1739090527-1.2.1.1-Lalp_Z9lQdOGCFiHxqeqkzcelkRH1hnr86tCI1djjmdH4mLxgOl_rmQvZAsbsE13zEwtcSlot1z5wWk8abOisttn5ULndOi5HMcXb0UeWHYQFfG7rZ5h0VDcna72zAXHxjnIWipMHc0sosaQosr3PT18dsr7B1VnUlkwIcPMeQL3QdbLrBeoJif7jiKorQV_oPEf7d2mwfmbjGn3KPrTmyD7zRCxtqh70SeJhnLhKAROL8l_tL_4o1flQ30imNoE7xsbBkdhN9mjzEoAabr7oyPWKMFh1MslAxLo3V5xZz8I2g2zrWEeTmwNUPoSxi8oAzDiG0DWEDUjf3PiCNLfiwS6TzyIdgoKF9qHQsNv.sd1MUaKFNCTnN6HV8HgfsJoCsymbg5dvKegcZMpifQytjov3PNxdX2hEV3I8HCmC6TQhOriNa4Niezb0y7om8H9f5IAYdcHixP7sMI10VsNbc5UQWZhcZX055b6CYJWNWVkqX.AEPkkZ4PopM8GXkul5ZgBmxILIW0S5ohSQy6JNissVuoAj0hShuhd7T0SYf2SP3LX.TSwhTZ58pXbRdows6gUloMdbG0UXM70W61trbWHybzSWK3TEMQ__YJVghmVAklykL.OXkItNB5LIhjOhvYV7XfYFk0tr2heITNbK8VSXMod2aMAsWAvkcSTcxUS063BGvq1aOoymaFRp5hX96hIC_LNILvH.BIQmaLmiUT9Dle7pIOWqnSttC0EysCDnOPZ2UZYmBTI8fiMu2MDw.uDWOt8dGUGhOsGr7uiaXFuplAzns0mcPLWWTgB9vy_8eC3qcFFRL0j3YBMuK3CfHrW.iKgBpW2UcKKE3fmvapjrMz_T4g13VWnH6rrxU3BmocRFkmy25qy1IJ.kuc8sfeuIgefIJmUdj9_0wLqcXLh6K3rrDkWimgT6daYMpM.G1eX_iuEXtoqMQ0UZbJR8r__YCBqQXSTBIheoWZs2uhgE1Z7HuFTNB4y_sKQL2WZV9Ky0vvqsNBBAddSqbzry0Mfahx9BXBXlNVWkeBQUrVdMduH47GRWmvbvbyUBa7hnk8V1aKeKZFMtc4nbei7uwxUy6FxIbhzbV8_1vV4dAZ.PPYwVfKti9H58cECOHbbbTgB9wuOUCLleR66Qt8y4ST3dHUKged3n9mGc9zB0Et8i5zY1TgaUXzi8VRKuAUu4pChlu2Phbe6Lruq8MPj7yJNycod2DBe6ZDpHW4CwejrpnX1HIMBisrYLkKjcFZ7hMwK_AdjR4n4DkkKSUT9aDfKZ.NH9cHr0lb1sSfYQzKuRXHxnmX6eKgRYCjTeIDInzwGgjzaNqrjoGqOGR0FnnrmohRrZEmr8xX6zmlMQip0IVbC1Z1DmsmU4y51oRRTXREj1yPuJB1JsAXtBIjpadekzC6cgz9BWAm7I6Wod6fHqe1P7XKL2mSrR4KYOnB1G1pwsOKHUhSLldPvK_tUqCDRLJS8WB8NYgeGdOWNiIMXfUciwljMixPhoJjPt77c10vdzTZM5XLN3mZV_3u7ZUCl8RsxfXWJJ_HC5ImG68CvpO8FxeFYS9SWqlYm97m3TJ4D2IIwhhD37cNy24Wdfe6BnYyOLE3osiOkjE.lA7LydQL1w3rk.QN47rgHcGHTOyC96SO2H7y1ckgkgWpDLYTVYQKgor77LcwgIVxgYm8jfk.g4yS4U1Zg6576RjlyyPPGBI8NzL7p.BpW_n2_SKdcIKbQHuUr050O.Hrq7oQIIVLGuyNi00LsynpbsselagZQQGYyylMPjEl0IKNmyS8OSAoOLnVNww3CFXIY0A.pFDjVX99nM2Y9R74vwxk"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f290753e16d6ef';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\/7924563108?__cf_chl_rt_tk=bsWjqZ3ODeUX6xn2dTk3ywrQM5Q4pzdzeWPE6w3Ez0Y-1739090527-1.0.1.1-P8xYy1yTVzKQFoFtAm7ch3vrivf6wbX4_zZ4Jz10LOQ" + 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