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-449720853369.mit-edu.top/post/3205146978

  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-449720853369.mit-edu.top",cType: 'managed',cRay: '90fcbffd4cbb3ae1',cH: 'PoRzBQ6k9mZnKi2cgksUy9pVZKuPK_xqWeZB.UwmO0c-1739197332-1.2.1.1-Dp.CZbdI1WSg4kSJ9yiifg85E2k_p3SjUiw1LScc2Zz335UNYYaqG4vT2ZWrEsjK',cUPMDTk: "\/post\/3205146978?__cf_chl_tk=L1Nq0m7wxEAz5oZcL4r2U1_e.RH1q0Ngl3Sr1iTLE4g-1739197332-1.0.1.1-vFB3oyhEAyslAndEciBBd_APFcZXfB2TrfvxKvTzaZE",cFPWv: 'g',cITimeS: '1739197332',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/3205146978?__cf_chl_f_tk=L1Nq0m7wxEAz5oZcL4r2U1_e.RH1q0Ngl3Sr1iTLE4g-1739197332-1.0.1.1-vFB3oyhEAyslAndEciBBd_APFcZXfB2TrfvxKvTzaZE",md: "RhELXq7kWT9ywnmqyjw9HdLUkwooZGEgwO83VEWABEg-1739197332-1.2.1.1-4rhbVxHrNq.LGliJqpt74ZnBiI8U6Adob..gNPhqYVrTfx218cQpsXtm_Otnl36wahUd1WR.AM3lqRWIyw2o3fqgNv1MM6v0vd6POUYy_t0w5hUNpFVPQSltsUZmnafB9s3JtsCr7d88Ef.vJ3yGiuFmW3tEqQwGiuZxPKdBNRSCK0kAUTkdLRoroa.CZ8P1mmWleo5ba75RfuvsfA8nUGWaS..snUsXO_YYhVVEFb4qFyeuCPoXdOSHLHYg250n.QtnIJpLJUrVgIREQMvAZOFReczd232Yp.Xw_jNdZbCSOlHVSQxU0syWku336IoCLVW7Sn7SewmVBPRiEePpNyy5CzH1VWcYr3gyGUug_eIYfGIhYVA72KDLjdh0OPwSTofluLGBFvbeX7Vv_G_jBieyPGQDavw24mfz92nbUQLK20YHWzyuxYkMLKAlEkPpZSHOzxg_F3dNHmu6QKxsycCK6IAD.BMwlsVwAjlFHTQFm5rgFkG0vD2064i39khUU9wJglY22VpOZks0YzGjWytG3GqYMtg_B7rlnNzUt1qTHpfgxF.gVxl_JUf5HCZTEWhNcgKXzSF76XrbQBuHzJaLDLQh0CkAquKLT67FYu2wrB0EVp.GE6uQlkoU5LQtsDC0WBU8c0ra.NhP_BwlL15jOy0Jz2hfpXRlKpMrwrnHwM43PNAMDG63szULT7JjnutQ8qxBu_fIlbGlyNhTIMjGjFgFcLKW4L6vp0T2x4kYuWK7gRdNY90rUPfSPM_flROAquGWMq3fz5TVVtPm.z8.NqadMVFNak2l2o5dg59EmcEFny5PQRJvAH.UgrHUDbbUfMhMZuER1bLy8SHTJDAKFzEbFBwGXSxWL4p0e315BzNxgdIKJDY2LjH0oxzIel.n9RbqKpFLwSouyv1Ig8Lk7_1EZmBh1gQ8FiJEtc90OpXmymw3fdphhGRdnayXI1eGmekpPJySUtcataKnOS4ihUIG3WKKYDD7GVROMBdS22hZeIdg.s8Y5qycjVYcvES9DIQcIRYd0hKyjfhXjgUPpj0XImnE8jPNLVw2.Y0d4s74RP83CjxUuJ.gJjMKsQiPcgjySxzDQI6I.LDnJSg2rJJbZ2Yb3rOWaWEnE8FSyAQMg98LMFs3TO9NrlSO0BwpH4wgbXoxu3GjKE3.85EGaMKt16AbE1eySBRiIGxPHFyQJJMqg36mFqUm58lKUfH2gQQdvFvIUjhVa.wqY_ebwhBPLVRh4gHzjBz.dyRNnLFvT9HVrBZ6PjadCCnOYwqxU8ALGfjrZxtGuzOyWQTanMmjxKzJVPaKt6M3K3D7w9p9ahv93WP6AwDmc1JVV.EoivTEQr7Hqo2oAm_Xu5BOEgNT9GZfM.P7MGbIz8DykEuHpqAO6BpCiTmHkDynuLWJydGH4l2zeLkZXbkwEXcnWUX9OUSjxGrW1rMRh1fnJ8AIBkdnm5VV9xESaAx.eiipJat1zJv7jqDHkdyJDJGmvl4umBJ405qF5Tz6b8verdODJgJxTTQub5CX6i03rmzIvqyabccGBEiLKyR95T12C7BCfMbBYrqOzsEZ0wR7Oyri2ppruUOnFWXE.QPaI_IAcW36Twq4r52AOw_Cv1th6vYTww0wpBWPF6HpNGrbgfUZMZ_IZ4z1caiuPnVOkSHX5371z_jHu3eYdXucl9SRGQVdTUrHJGI3Z74AMahodQDyr0kOnUr2nGAwectnCV4fCMSzHdxTmyL7yv7vvG1.zHqCvJ3MhmhzoZDemzIV.zU5X0mtQsg0HDzFfuiaZLoIYsqE9Jb7Y127ymHFGVMQZI9cZ0P5rVmJ862E90qGZH1UEsIyabN5oWdreLuq_6cyfxzipN9BvVU.E_EKjbgddL3ICBLm6IcA7k588D4KYhqNxA3al7o3UtOKMIeMyneTv2O_sVokedIEhKmnuhVb5tiS4WnNyXw0nXyjwZL0O1gA9H6pOkVGfw7r64O9sJPUC_2hdzxIoHq.86O0OBBjgTq_FvKxbe030idF.3dCeazx5amtnfm7I9yQgzQZyxBJdZh88n4TADgADgIdCUxrKmKPCtPltL4TahG3TtUb81O_xJVUV8URyoA9KyvspbGMaGnVbBF6deZ3IEUjZEi90ATtUYEfnlVkP0.uvb4QX0eaL289yeTrT2H8dbVShvqy7nK0UteNxasdUfDOEvy21hpuJDJlX6uvgrfFbHSUeC424.uAhzJ_9NGVtKDZ",mdrd: "oZKdXXaGMd7nIryBnKN9CF1vnTEA_KuY2bB10f7M1nA-1739197332-1.2.1.1-gixmC1rlSAjeW_EVfVJ6m7pcY6h5x7PomyuNhvDID6gqlbmKGSITA7tfUwTSYp08zUJTkI4tftL8Zp..2zV._y.v8ZB8l7uShuE_l2u1szDnWX3g.ZXFUd0Rdf2S72L0W.oBqT7MAPO3frIMKGCMrZe0dJqWyDo3t6vPUnfnb_kFGO1uYtgNX_xKJ0DgbZaVF2K6qHlRRv9v3XcnXhwYwEouxEv6j51TmH8M2__7yVe45FoWuKPVzZn5gBeSj3kDEIEoFWfeX_1ojcVexNcOaEOgbMEnowO7Kby4gb_dwF2qXLzSNUW8pebLKEYsDgO8ENNpfGxqUzC9gCSnobQWS2Ga.oqqYXfqmIlm9CmDIhiVf99meebPB3ugVQJCbzCXQdwcnZoKPLgy3QWVw09In6OpK7FMaQNfhSRBNTTaPgudnlGHnKQHgxHltUaz.u7t7EEzH98g1ol6qaLIIfeWxRfDcXe97m8S3L9.46aiHV4kAhkyMo6e7VJJBkut67Mi_fCcMe5KmtXhSWDWKIUaKFvSEE2HLnrtmGS31ZhzPRREy1oSpJNCdZKDGbuObKmniOnZICl6LN4u5ZJGbSLXi5F5F2Ba8rD4D9FxtbImQlz2O4WmmMTE9BFW_HcR47dL40Ch9NOghKaIQbBN62rZ3noHjHMY1rqJ.kVthGEeHrt35vGkm8S7ivvH5y4.Njaff4LwtT6V7Z.44kOsdfAteukAZY_ip9DFK3o76U7Uxp5XpiiM3IzTjqJzIkx_gYhdyu_pnTg90HS7_NoTlPVGrzGwFK.pv_42Dhb_DSgSz1ERXcyRSY2ZfWyrdtVrpRHTChXi1seavK5VCqpOOyh8Cgy8fQdutSTV3hCu60vvBkkFZv2y3YNeg8ZgMngCCK6AdMZtISGZUSwFqs6RypkqKYJkm14x6Pk_JKVYRxE1rhUtAWjRgAIoGnPRXBTwOLQzHDi3D29IoZFlNckjtZkLyI_n.MFUqHz0XQVTDEC1SboXuUL23dcvgx8FAxam.5M0PmPOM0oFvenndKARkQtgGFzYoHfO011dS63X2OBErCTRwH2Q4Nu1yn0OJXDpSrT.V592OiN1yI1JCtYY5edy4MLcHt.EickDCipPUsrciAHj9Zb3NV_Hbdcn7oFh_bqhyfuKwPLjfMxKtwVM28B.Dx2KHxz5HEutrc3gNbwqrDRL_QhHmW0YVWv7DAk4ouIddz.kwo2qw.beeYfHqLXNlexC86OtI0i5EfasHJtEXcJ6Vl0qo3oVZ7pyrVxb.Sind07cn88Lip3qYLwEji_wiwUhWOAme3nNYkV2emi_DuVWxCYjZJTBhrB7TbWb0kcBnomGzeTb3Cl2ugklnN65.J6Q.1ntSLAT47zXxaUDucyc5qFttOIo0PhSsRSrOn.zuf0TEA1ihWMmfjhs8gQVh5ESQn0aCsmgfh.zVfxV8bLOcFSo333HCJwKAcxR4OBNy7tWqVxIF4wSqx8LaKhm7oHCsA85cu1Y2nA5CG68LCjp4J4UsPFleS0UwnVZHRYT3.LFEzv2x6rYC8N5Gh9FV7vrpaRec9YrjM3N6QysCvrlA9Qii5WZutdtClrxrVd5pRtuyweeQduj_7cBvElloh5wg3I2OfbRdwky9jsFeTGgXmnTiOJcaLxORoqHc7mFU94krM2RftUjpoIhNrtgxm28yLrlm3Oef5EMhYnssviv5AqNhr8EjYlz6uc3TFtLRZTqft273huxKJ8.s7rw7RRZiaS_m6xc2VU2aDkyk2kBvjfNESnYO6T0UhQBIrC4HtYuxpwnvzxLyuJc7.K7foEX.5TyLR09qT5sBIADgIU"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fcbffd4cbb3ae1';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\/3205146978?__cf_chl_rt_tk=L1Nq0m7wxEAz5oZcL4r2U1_e.RH1q0Ngl3Sr1iTLE4g-1739197332-1.0.1.1-vFB3oyhEAyslAndEciBBd_APFcZXfB2TrfvxKvTzaZE" + 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