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-affc1mahp.mit-edu.top/post/1359678024

  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-affc1mahp.mit-edu.top",cType: 'managed',cRay: '90f28c0aea5e20b7',cH: 'N.rxLjQQGFCBmO7myiOhRbyDiJW8jQFObmPfvy8Am44-1739090346-1.2.1.1-MfXG1gbrVCAotaBTawCGGBsKWwYK9PspWpDMS.EMaUrruH9SuwrUc4DY_ICeJ8LN',cUPMDTk: "\/post\/1359678024?__cf_chl_tk=bJ3RMAu4jUgHCK2j3D3WTn7g14zlpcd219WvPxSchw0-1739090346-1.0.1.1-900xdpzpLZkpLCssfpQqJEN4xE.GtTX48KrjAWzIUFQ",cFPWv: 'g',cITimeS: '1739090346',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1359678024?__cf_chl_f_tk=bJ3RMAu4jUgHCK2j3D3WTn7g14zlpcd219WvPxSchw0-1739090346-1.0.1.1-900xdpzpLZkpLCssfpQqJEN4xE.GtTX48KrjAWzIUFQ",md: "o9rkg5DIPigbI0y4nRbUG8xr4Y4YmAH7P1fzjfcxUXw-1739090346-1.2.1.1-VLWrD2XHJv0jQxw6ON8ePX_Fc6RFf4Jq6fvg5r3WKUwSMx9bqylBsdewVWJgv.7DqE.NTDFIt06ebQTirtxmoJqBaWjARqpS77y0pyvU4cD7n29IuuusD.Af.lRrjnSUOL5aQXmQEtMonO4k2o3SMOnYsIIt773zfVT38yGJFG8aqIc_b4NuuueqED7Kl1Ze6CyhrAazbu90JVTLj6I6MLyYb_zbnOT6uit0HMwnzyaXPqkgTC3sTYSeRwnJD.lm2X934ppvHdSEkz20lYMgoaGWNcX0nb6fSD6oR9vLw_grlbP5ExLv2dCZbpfkjbJ2f99Tgrk6i5OxNTIrwrgiCG1c88_HwvTDPz.iJoLEAae1dFblkI1GUmKgtaH.8WZqv2HMWY7vU4uQhPkwxNgZcCA_ufQ4Jfi1tbSVK_7SFBgWHa1xt.uZsZBMK6i0ouZ6VABMsqMRSwD3WLJ9Ya_0m2Aam8eT3miinbEYUnI6z1XSdRDeZVkqG0qwW3KyWq70o5X7F1jTcAB7p7hCNHiyZynpCtpYUnZY_sYlSVRkImkgRalgZDmvZLna9OicpMlUNR.iIWB6KROonKUPUh4Pi65Dtvy2UML_lbZu7TxD7phKFx74tlMITAwT4FrXwWWv.GDmP2F.l6jIa5To.WQHjyjwqVwp92xHXNGUrjAN6IgmKBdXMVBITriyH7SpuVM8VmvulTWTJgqjoDmk5i3zdVgeIzT3Zw.fnzy8XJhL7QEFXYgBHgC4PQJv.xzUtF6lc3spRBAOtqdi_f4aXlkXmMFlDni5lfXUThaQ5b1iYrgzB7Zm43esRsoWeg9H4RTP7dRPnJStD1VnhEW9yO2_UfRU3oQZPtyy5yCFTOaYoKlXXg1LlmAF6HOfyrhOuzZc2rJt0fFobS0TzT_xMWDgc43cOxvFuPkn7c7pdZ3RK7ErL9QYFXET734L0dezZ8DiSK8QMQlInY6L_Lbk3uUcQtsZ9qpMvB1GStGl0roSR7vaf5M110t0qUu5kN6qJi68uCA9vMGk_LFE7GWKvQEP5IV7mHVacM9LVQdvahTAbfjB7oEzCFW29MeqYDWSYoEg6Jyos1nfcnHGTg25GfNujkFfVBtdo.1Yl0auHIa5Z0k7Jk8ppMWQHYw9XyD_0qoK572jO5TqxBbUFGU_ypwl.nAh9ptSyVhBc5SGiVMNsFnU2n0fn8Y5M4hD.zMPhVtXnS70SgbGdlN.2CazsAhAxYbCLvwJ8W3WwtqIMnQG1oCv5LPEgWAwFE1s6nn9Yeryra878pGX7RYJNaJFqCFY5VxuyXcdErLeExvplpEae5h5YaZd.02.vTBSfSTkoTropls2FYjEHuKhU8DlRMtG6SINaMWTxw8jPTwAu9Owb.RLDD6zrVRts5mVW08ogLHZqachiRO2ib2ayHhw0CPrrmPPUuZ.8J23L1h.Q58mS4pmcbjsWRKpmk8a9qgcC_chZnFiEPkPohg3t3t6UTY.g1in7xjkMrh2637fJhr.A7fM7_UTfEg3ZkHwggpR83hYMbJKkNXBNhX2vVESdiNU5iKd6iaIUL1SkXuo5qE.d9GfA6EPDoY1TbFtfCtgYoTQkNt2_R0i4Fy9Oqk6f9T3pjyxh9aWNJk0xvWYBm216Z7BDZmhHxEXxYcEasMbn0kUpeLHR_.RFvYCq2F4twBwcA1xclbVHTurrMGqbIXwmqnysnq.PfK_TY.cJEPhwWkKPQ_jgkbGyqr56S27QZZ_zEj_QZCEGHh_EKTgjsWmglkJVB04mQTKAiqp9l.Brs2yJVu5gfFd781YzNT1W02Aun2IyttM12S9joajLoCGkb3jSm_XHqYFd9xnGjenXhNy1vEhrCleVQtfBH.tB9oKVr2_dgwkGIqKxxiQ0_LXP_u8hBY6WFTw3xdB0fYQSZOcXrG0ENalf290n9XbW9LPBQi6tkgUZKCF3PLgA8K2PmX.KKaJ_Ix7ZYyp1TN3S3PXv9EKTRJXIQfWe1HSvbD2ln7wwIKxv81PM6_fJ4jlZPkmOIiOBP3xFCFMM63XBmTqK.XwujzAqadmqOHG5.HIvMcjJnK2IijwsbuktMmR3uzlDJ_w6DWFLCo40fU_qqN.PtCZXozp5AOv774k964z7I..MnuEAu2_7GHcGOLDm5dCLD06UhxeAtKWaxvhyYFkiaX53O3seRHPlVF7g0aED0PcHbFkA9jfK19KJWpp656lrUIW94iiQQ.WOzYXj..l",mdrd: "TWDfH.HU_lEd.Xj_pg_i0L7Q7OiVB7Hb3T4QArvdO2M-1739090346-1.2.1.1-Dn7Xoymd66PKsGKmqhP0wgZ6fNPVSha6fatc_ME_.OxTIco.nHTDsYFW_uCSSy3t2eJcRfmXHPnlRFfFZb1_1dhzvEk1FYUXA.3JvMou9WtHOQQLVXShdmhjKl6Q.1_H1kNg3cNlVPMxmCEzyOBy_hbiP7J13.GLZldIpN9TBTQ5aXCgee0S659juMThDqiPaWdA_27fbQ_bqwScNW9rLXMgn0kU3vF2hxjDjmyPpKf.eHFyhHT40poDnGh9yhHMVAwNBAXPaypLW.uFi.44KPrX1PT3V0_B_qORIvdqpH9QaOGoMQ1JjY.9ifipPqBeAr2OrDDzQJJX68_h3.9ZLyx9vmnmf9TmFtj2UynQb896rSI_ozXfsznQyqP6TwYwpDoVrE_8nxbNopHyLIeBQhHICJlcBbFHWtnD3JEVIAFl.SMFuuGaOoW2upjViomIAdOJO8XKq0XTnzqL.6GQqr6ZdShkAqcxyO6CPDNXPJe_HYgKJmA7fPSZ6uowLv9VuoXiIh10IIiqK3DjtbTAXqNnwVjpw.3WKCimLtD8TmTnH7o8dYYl2.DRE4EIVaQImCeLD_ZpBV5nzL.GsDWnFYoL4QZd1t1oCd1LhaFKgQgnPVFjAPzX1gNlUrKLX6WZZ1K8HWmOcYjAnAcmbBNp3YKiVRu54XrIu7GmhYmyvE8VPdB4s6y7cPiwRwfEpq57RHkCptm5RmNhWel55mFttPqN22_dXlYJ3RCcOJnuwlZmmwhzNEGv..gQx8dv2TiElGlqyApvE_UOqu6Z5ud6Bsb0BTHK.U1oVkh0DJxva0m4oekbI_v18y376YgqVO4MQaCMddWG_BkN5WaVGUKCdOycIgJPlxo5mDwiteQF2LZ5H6QcTu3BHi1laAR1NBbIqIlGQ3SCgQOdyxHbgej.Qc_2Ng9LXFDex8AoA3NO_HcQxQ1CC7hPvTLvWlm9ZnUFVrm5rKvgaOx6NBg4E7uX42bTkf9jkVi4asyYb4kvuyHhmtqAXAof2RBsIZ0_sKXnSrx4VZW2qJthHQc_3c8fmQ_a5vHEPYl6su23ovckiA01F8_rtDwxKkszsZzaa1DfGSldLkIkmz6n.4YW6ygSD5czsHteBRUdmZRulBU4JEc__ZMFtwfZPqwbCmkh_F4rScITD7ggwyk7wUCO8nxlBxyGgrZofnicUP3AlZSV0kS9bNvpmsUAD.aj079AeJjiB1Wb4ie0R86amqPy2nKMyEAQzPrfXjIGsHwJtSuzP813IVsluUSvmUjjAFS1GOWbIANvoH7oZRDEf.SJkC6LlUnkqd4yLspWitf1kURlwdvBakML.JUoZfZZ_DlOy257ANituDaP_GzSxCFENZHxssbnoErNe_xX8doaZNL3ezzeoPBW45Wfc4iJQg7C7LSWLL6wChJCmPA6d3kUkO3vcRavJBRHM1cA.kiYbwV_uNRo_6NY_iNxWbBg89ad9dn_20tYR_IM4yahY4wLDwFsTw6BNXOr0n2oiFpjEISY6RV.DFrqe.bGPfF4NoAIur09sMlklHLj3XBIlkqZhMArjAWqq_eIcVdQZanDhde3TUHBz.jBTp3KDo17Ur9WXeNrrhmoyDHyRrSkzOTSUqCBK98t5ags_aeqiViDJVfbNQBqQbMqChJCNkK8zU7YCWV7NRJJ83njh57JC_zTB9kIXrqwUWUaclJMesZqVtID7xLSWSsYTNHl.T94L7JIZWbg4C5oYQNAfjEEaZ_oHTuJ24VYNSZILfo4UoDId4D8tIYnt5OIBwlWmCTxEyg9jQ0yyYkIa3QPJkAD9NnzQrxjwQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f28c0aea5e20b7';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\/1359678024?__cf_chl_rt_tk=bJ3RMAu4jUgHCK2j3D3WTn7g14zlpcd219WvPxSchw0-1739090346-1.0.1.1-900xdpzpLZkpLCssfpQqJEN4xE.GtTX48KrjAWzIUFQ" + 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