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://mit-edu-4978105263-gov.uchicago-edu.pp.ua/post/4978105263

  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: "mit-edu-4978105263-gov.uchicago-edu.pp.ua",cType: 'managed',cRay: '912572f92ce11777',cH: 'rZ050W.pNDlvG3XWJevJi.Xe1cu739g2FTLbUW4CtwA-1739624093-1.2.1.1-TXTIL3ICyLnf4Hl0p3_v5WsYleNlne8tkVthXpx90WdfK9.BrIHYGBsfkqi.In0l',cUPMDTk: "\/post\/4978105263?__cf_chl_tk=f_.kMws7U7ldqr3hq69pRgcA5papcAi6FhGTDtf.2MI-1739624093-1.0.1.1-Lfsgyc5bvynuWJUKOa0bVFOTxC5Jg2dhNcZz._qb3O0",cFPWv: 'b',cITimeS: '1739624093',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4978105263?__cf_chl_f_tk=f_.kMws7U7ldqr3hq69pRgcA5papcAi6FhGTDtf.2MI-1739624093-1.0.1.1-Lfsgyc5bvynuWJUKOa0bVFOTxC5Jg2dhNcZz._qb3O0",md: "h7fxuE3MzgcOcgYbvUFWWLy8O_1tQD1B2a9jVSp_NEE-1739624093-1.2.1.1-uoPd8Qo8ssoCUWE7Vm.HTzKGn0aehkgtxPq.jSSQ76gr9_D0kqR8HMPv07XFyh9k0P8rTwjSBGEI7B_0lgDYeF4iRff5yPc0tr_K_O.IVyJH.x9a7a64Rm38PRHzcnCjkyWiRQg8Detd05b5WafTr_9XnAkeOZQuuHqjLWchMqWegSmOY9ebdnB.iZEtdoTKLzcBObJenUSYkcZ.T79rCp46cY1yfNJkhlXmHyao5YXPP4TgzKuDM5rN6cjpWGxuIhuUxy_eBzbwSx8sJEW37Jad1cVCSUepCQu2IImCEt7tQ2Vr6905vxn.XK0ZVcEHDozY0tAjyfhws3.8URb1M6sUewvv7x2yJ7E7wUuaaADzmDMnVbzqSIQOxlycoPSLO6XvnCUQ6E51VhgG4FTYcGzUG30rD6TbvYl.lWMHIZsO.zmhj4d6fh5r8jJ9LmWa7jp5wDrqUv2hVwAWR3g0Wh7yIyJvvtI_n2UhJUIsPUNWjg9DYngrr8ELGbf0h5zKtxeIEORtgDR1hdfb8qHnWmsIG9rnumPo2FTWzClrdwIGtoEC9QxrShLniE7UZJtPhq.3lCjf2DH3BPOwqTkDLg7.I0rBSW9IJ_LbZkgc0ylGwCSrFXCzZt1RFLriiWzEP3A6JrSpzCncFqA8UpRDoU.Ya.2gRu38HHG2clWxjn0jp0lylLOW38wZBfWHb3_QXlV4Dj27cZSkAaH5y.Fjkex43vOP1_RHs1q7WVzeQudr.8gK.04VYfQ5gSUtzc3u7j5QpHwBHbWlV8u6zXCBj0KxKa9dQnKtsTprH9ezzB_87KivWcIKwTIRSzNCnEnz6Ew7JUz8d0KKuL8uSMh15pjat5FSgcWNDjDkQIC6wu3w6rJRf215iSbVp_AfaZc.tdwSzVc_5hW4sF1fxYcx1tU9yyuhQTi8Wjbp2vuHx8kynKPWRqbvuTfdyinyYBpeCIC3jx33Fcdnrsnbziqmgi_Imq_J7kloTRDb5sxXwUzORh1lSzNVoM0JpzDfeqemwXTCzNw1t76e41WwZs.Zqs_iuMkDk7z6kz9FCUdWp45SAytmRM2ppJ2oTR7AvepwDC25T1J1MaAI.Xm9AAaFa31rwkxTK_GPIYkJ_8hel0bBNtzqUxBfyCuMki0k4FWhX1CF6U6rc0hInniF3hrjAruuV4yHFGpgV1ubLtIGQ6CNKAzylb1kN0JEhe8KF0CKfu35XAL5yRV6ffe1DyrZ67cZh3Ex6O5l1QpMSEhLCsyF1BiMIkPSZqrAXkOzM2q6wBxOhY3HEJ2yvWIza0toGfCbN50TmjhX4HF4v3VrM.RYJvKDglQzs3nOGz1NpiYRdOYEZeEzd5Q1jHYZXv5mSyx5G5QUnHGSc5QsZb2DC3IcW_YeXh3OfHlEq137STfYypygXpTW20HthvmzMoKViXPmU974WFbwZB1jIzgbNRCmSXjgHHNWC7w7Ipjfm3djudflqaWq9yrJnCC3pj.gXiSW9a.Ft6EpTk8UqlreUghNgEBCQYn4d9L8tM4373JcuFb62yP1NXcZXTKb8QDfrn62O70ZHjJsM14lgQZ26laaZlqKYE17eUQ0oem2wNG7_Q0FXozVEwJKBpprmASCn_3wvpiWtbaCnX.7K8DL2QiLTGJZsnVnp1nseRUUdc.e99WyKPKWS_p3W.t7HW0ieIHSeGi4IddMisFHaPO80KkovSBjkParWPLC9ZgYzyRsUqA6WqjbU_cA9i.BAYMejJThp0MscG1AFy8BmIlARwMQ3WiEoNaKfA8IQImQADCGmolWUNM5e5PhJwi9CXCncF8TESgqMiZOF8I2fKjoYSGtlCa6E8xxFmSj.9XarNpNPQ8_tP.lWrpKakVpQkvqamj.FKwqAILR0pNdRPY9BYKg6Ff3y3ChRUTBIvk9pSGFjBVmUlUDM3CNQLWJbl93NarjOPgdul6kBqV_AYFRcTBqe5LeJjalKLqhfUIq8Sqf_YhBYBxCHGMutOJbhjZYFl3GPnfl5pgmCstLFztXCwdhlDjBJvRIzE49Hg7rRzucw.nXzWgw76C3Hc35XTjTkS5CwcY9tuXCNRxVDwwec7ldBftfUnHnbiLWyqYz9q.CEPgUGM9OwkdNEnjyz4CyeZVmiGOMNZyxFjzhiUuVqMnS0QU6UNzt3ObmXPR0x1N9vTUfFKtYKKe63EuAniUKfibjSrn7GJIWD_NljOQusmXa39jZj9hUVinvOrfm5Yaq8oMpySzMFe49.KmGq1DKPQ",mdrd: "8ClIzdfccx5VHY8AkpbPaSp3y1t2oRymqoUZLqbRM.w-1739624093-1.2.1.1-Uys4.VG.plHGNOdBrDd6b0KthYTnMaoqeVmoA071iwbsA_YF7aN.M4nevIco1UKwS69WIoyHl.Lq7AR5eGljA3Y0U0E.xq_q2hBjKhG1iT0JzMmNAcDTXG0u2fm_6e7WozkqC9BmuqffmukzEyAtnvqvMn1ekqXU1E1nXK17UhrF5geePguX6uFrCVzppcPaCeEkBqIvLkKEu2qks6674l0Xkf7Aua5_lvWEf29fFK2GglARXOsN.uhaSKzP_Eu4KiuqAU_iHW2.L0G_ZAhjLB1gOtOtAMHgxms5ZMPDCXX4RxBRfIYNngXs5qRtZ8m0YuguDHhsnsWo.h43pMuMIj7MQnmJwqrdkvit4Qx9SNWEBLjWNC9D_RBwYRA8q3MB4WIoGypEfFXpQsXR0HPSuZu.Uuzl5u1vfQ98x2.LfJtn.N7hAOpHQ7AUXXZqFaGxQor.zr5tsf8aKEWPTtZAX4gphzvzkE1U_T9evwnb2Njlgy3Lca_Cu6W4xT9EuosLxPUpkqerE6RSvyr0HMtEweGkeHbj7NWzjR1_c5mqrgJ9CD7dUZ8BE2RIGhpG5s0XJvbUCsrk.SjZDPkpTTfspMDcIu8_2DaGoHoK9zY.jL5XT7.iZkxqtutOPsajtOBwj0pC.MfaHg._lCU9YE9z0eWL6jtZn_zh_N_Q..Q0VTKZ0U.3KJMDFuvNc.c9LfQte38tjQYxFsIw6VHounV9bhhUN4dqhfgpg9ObEk0mFQVJSNTKNf87M7ryN7hUP.C2sPj8eBqCOYZoeW1S9qoRBjA3nUGliJ8h2sAlcJOiSzf2tLoPg4lpbMiGwBmIzqcIm6YBJtIFsT0y2GCpakGW4mqtsxItxOaEtbvEQDT5nqIfUN057ozba5nHmPre2Qfq1we9ovOZCWWUS9XwjADyG_YGkr5av45mXdhD1y22Qwg9KJGYItWO.1MRubaZYBID1pzUSlxpJgfXiTRw.c8SstgH1FnTgBPk5zV.FkJm8dBWuDl8B3y3UfiiJyNVqqZ9OPNbN03exC1lCVD8fHx89QOhNt7T.RtGqTymof10k6UbmI8FqdKnUdN1BL3xIthJ8A7eJ2IJIabGoOE.gycfeeajWVqQR0iGetuHicieOVEaszNz_Y30RcljhOjHrzEwFMPiOfstMrYoxZGRn_APP.vUMbHkQgQJtXTLw8JDGMpWq2S8oFq6_kKyY.E059T_8znhTnU7yDVazBoSspNQ7sHnNjPD0UL_87mRVZurA2wMkwE8h4Pwh4VSl4EQkrDr9RbRq3wvtSLCpzhvuz4I2525EbXIM0WnKYXp.fz9DKl961wzFSjrj1ptKh3UvY3KpTI.ckJWh.4TS4.1qjEJA1tdDPfCmLdJnC8FJgq6Sr70JKVuzYvmVqpfuVbsOsFMJPuPHxeF.GkEk55PrOjZ.DpeZH._hH6ePzYM4r5oKTOYWD3uPTaVIz0bnWqmDD0hJkZykuQt5XKlNz1loUzvqcVfweRsjxDRSzxnSaPRtpfYHJqERgA5q9C_GuHXRB.4jmN9c4DGNM7G9d34B6rG9RSJVgiNXRBaywBbMyh25OcPFmJgmlZysP_hFqGAudIL7xnoGGvzEIi6PURHzXX7q8P1L_dwKHgUZ8T2m1GKpR8gkJx0OCtppeb4973UczdDWMgBgLjIJWuG8jskTMw6lbHlazufham90s6kLlwX6.rRSBSUXm7lIvbEm6mzicgHBzgdXgk7Tvn3zquexTFwATRejvfEQXWjB_X2CHIYeSN5tUUO7NUg9gHmQ6tJf4xUJhLsHH87gdp7ToEPAhXFWdiktKfjGxVesLN5vVMIcyDrJeuZhsg4AQ8YV621vm0E1I2z0zDgaVDobN89s2QEKA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=912572f92ce11777';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\/4978105263?__cf_chl_rt_tk=f_.kMws7U7ldqr3hq69pRgcA5papcAi6FhGTDtf.2MI-1739624093-1.0.1.1-Lfsgyc5bvynuWJUKOa0bVFOTxC5Jg2dhNcZz._qb3O0" + 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