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-1983205647-gov.caltech-edu.pp.ua/post/930974474488

  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-1983205647-gov.caltech-edu.pp.ua",cType: 'managed',cRay: '90feb6389edb9c2b',cH: 'fzMH02FayhOEvMtNmzGORNjP8ek6CMUFLB3LN40PYEc-1739217903-1.2.1.1-4nRxyrI4nypGgvd8AMnUxhK6cp.cclGc2j5bm4frgBDTzhgC09Ii6nfMK8LU1YiJ',cUPMDTk: "\/post\/930974474488?__cf_chl_tk=gWd6VKIKt31F_1r.uMPJUlmB1hIHI7EZp5XceqY_nkw-1739217903-1.0.1.1-QGFHoEKivZM0JJSa.Fcfj3zEB3aO4Wu7ERFMWPG2iP0",cFPWv: 'g',cITimeS: '1739217903',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/930974474488?__cf_chl_f_tk=gWd6VKIKt31F_1r.uMPJUlmB1hIHI7EZp5XceqY_nkw-1739217903-1.0.1.1-QGFHoEKivZM0JJSa.Fcfj3zEB3aO4Wu7ERFMWPG2iP0",md: "CFdlGDIRjyWXJXoIrw2wFV42lUnBeCWw127Cx6k2c7k-1739217903-1.2.1.1-M6axLionKR_6OGLQoajav_VN6.iGYDeb5N_LTnwPLNAAMykSfSRxZb6YUqotiQGx9fI09zT8UqC2CfPVx6gBY6pJi5AHrHDEVbaUSdlz3WNPihXgMABMCkugJhyEFiFtpve2N8.Yx1lZJ0cLizCbQyvwdFhFzHfVfhiHFfpjYVrNCgctVLX6C.CHlXKbc1iSO1QL3mAFNHbgJZxF176YeXJ_H74JIQddBaFdMQtNzFCHXQZbRlKi.V2K.WWBvOGCSir5r6o5Yexfgrgzb2wh7HQtN.Jmf4O6b4ZAh4mdxAXQqP01oxRXX86LUsSH_GCiqZpRAu72L8snz1lViUCq8h1LnXy45o5pVgQ0I8EbZoQ6J0r682qDM4RsD7VS3Zx0TdyNoENWl.TKPUIA2cOqpqXcI20SPGAn_N5D_MxlB5v2PpszAovQY6kvzh6QpDeUuKBlO2eLF78wPZljr_rxJFuhnU5x8ybiSGyVc7nq3I2THU5.Qgw_kAuX12WPxcOztv1zRITxASLKzC_lJOJpEZ_vvBIz4QPkaFh.Vl3f0EUxDTfN_4LJUUjD5OmO2SHq3IYO9qUeKM_0T3_9UBHK99AGyDp363X91vAJPmp1T45Dpo6kIztxDHSYrt42JWNFT2Q8sZ0PrLAHVOEk2iyqTAwMW7p7eRWusMI0ULuiNdL2uGRajkL3ejnWrO6KcWOGNekwt3qslyserDE7vp7fBvpbTHVvXAlgu25AldpUnxNYr3QMKuK4inQGjIcVqlJGnjIjlOmO7zIZ6EtDed0cexN4xSH9BbShIB.oeQIbd.MxThwdUsgj7Z3xKRKPVfeG3ExZdKbU4ZzoP9P2eXRNNJ8h6alHi8jIto3EZ2vUQYCkIVGwpEy81UXmNL91KiB0b89p5sWWZdTSpUUWFEwOn75dXP3QcPO1LhB3cinP0t3NMlqF_mSVY_GGDgs1usArolE.98_tOi8WDnZOgT5fV6e65Ik90laA2uNlwcEB1_vp3AUlqASNWs9t.M.mEZqfXO6nhGsMdgnZKcA25hsSv9FI1ZqKkCoqVb_F2fx2HCxKi2jPNTkGhIBoTinbhvEDO8J8Wavp0efPQ.zfVg5wTW6oefvEncxRm8CVF5ikrkWs24t_YvVRTXf4MtiaOKWzNyw63DQurZpKv_.MUGxEz0ab28gAwXkaeuirm7jSx_JbwRHUpkmh9ZidKVJfhcLqtv6019dqeOzbGhj_zVBNNufERNBbQPotuGXG4yWvDKz3ecQ8v6xelLGpFTafc1oQaEjUOsejl0zwzlNQ_PdM15hSjOfdD2TGpmZNHKibDF1W75IGPjYOUIAE.8dyQ4ucV1QtBnROnbQ8ZD_RMo4Ovyd153EmtGanguCgMFpD1E4yL_Sc2AwsAmgXAUsGkGO_EI1NlcmuTsOm1qoR2lRI.2pkAT7HHyuCe5tAM61x7x4.nVksmz.GHnAtKZgBR1Bp1BPIiNyD_NKIvCNYXJ1Mj86xCTbU5PDD8MlnmcsL1qvegGQ8tErfjA7ygc_PbIE1jUzM.g4C4TUU5i8td3KmyPXYuxwySqA8wP8BEKvC.PyThMd7agWKxtq7YUzpyoe_yc2IXaIIBxuYn4DtiP3UbuqX.BPwaFORer.hsFL2f1EtjJ8wvyy8ENETwD_AFwWfsbmfZ4lnHFD_zbBvguQT4M2uKfBJhqlkEsL4F9SrE3mPGa1GLNGDvZSzyFv0io8obMzBWHie0OCqrdd0xXKtnkKdDhNCsiQdicXCu2YOvADoCGAyXM40vNb2BvbiC7k6zqMFcec33Aoj7E8VMMCcbA0B00ToZT4qYjSqfGULvgyVAqNYGPhP0XhZirfvV7Bq6mTEoNBixbhwgqkwbNXzwf1jatPpAtWG4ozUXjhFtbq09KtSUKWrfqmb1W_mAOGq1UrzmSmoJZvcWpaNKsy.jyQvvTXaIYLzXHarrTqivWtXNEq62x5.crnTW9WaEpjwbrvRzMJuimoUWGcxI7fYgidsmUPEuC4lPJ80Fg5L_JUdoj9LJFvaFfh8tmJlXKe.qJZCYcpQNatv2jHQXsktAgYA3ttU28lY2TTP0mmbvsLX5hoBZpOPBvxXCVtJqO2QRurflSfuXi3FBghctC.LuE7KquvMriNJrTsaII3jo2cW3CdsYonz0vTN4p3ioLf4f.j6uNz_bWdlFiGw.9Jqq2zVSn8Z9Z9IPyVggLy09XbYmr4BY7_9wtOWDevjhVHiWOBDMj4WDDfuXyMGrLs4Ag",mdrd: ".ylO6jC6Tw6GMqnOMnEDKZooOT8Q4Nxxl.v9YGfRZ3g-1739217903-1.2.1.1-rO6HG4gGwmWQCTP6lJoO91eSztgfljbUgN_bA6Q5jS2zrFZfKAP8vbFHRijWxVfyc_STh3JzVOElHbZVMQQ5.i22.hZk1pw5_IGD3sVBp9rGmXmIsfuEoharbKq6PCuneyfjYJQZHijuA_rfIbJ.TiCUbgcKG9rqj1eZyo18Up38aJWWrOVtfwhwUNZM3xcfZUMinit_mgIIOgCJaLQAo_nsIy3tlUoNq3i9_ZEU5DswWGnXTLc3_zIy9sfRqWrgnGr.aYN_z7b5_shELvN1hmNrymgflZpBMnOjZd8EhCT1dTbIWVEClmWIEQpy.yhqFIcrtnDZ4LsIkX6tKEYr8q6yPvHTTgcLnWtkix0p2GQHcf.9JqNVnIyIYf3pHjCUifTtV6LOoWoBX6SecJWOfBfTGULLdAWsMEvDfd66NjrxaI9SERjkPbp.QClpFAAuWy2bBNgzXt0f3vap1pOR.E1UW5UjhOY41JG7RsEgZWRP3A7iH5W3vfm1QmzIoEvZ7ZEVG1z6SyI7mM7hvy66Zthk_0h5qZVzcKOuf2Tuhv19N4KqwlhpmIHwcQfNP2188xzrqk.JiR423NYqrGR9Or37SogLq7AkfbAgAv94W10UuTF0ljuhooF1oaSC5VHaDMd3iOmH_6l2J2Ee9Pa8qNJpFl8pI4NBsiw08xxGNA.kkeifbNk9eHzMht6m.IgUIEdzZdYCHX1W6y2yAtZfGzP5aUvNi5FRx.fL3fsqASxWTJjuT_Gd7AtGWsYFQI..m.bN9.eb8SDpuLdDSxXnTti8DZGlybIq43Prz8RyVToj9X961C16vXPGXxPCiH5W9293pjIikn.HMUJi_5Ce2SiUwgElXLChYlhl0I2esdGQb1uTL5fQQyHAL1hmcEtuqYM2AakjpRT7Kpgk2Tv2sPkmnL5qpal.Uhy15Jvix7ZQKdk.w5Kf6_BMyYaP.q7Hm2JhimOLFGxTsvBqVcck2Xs910GIQRsWOfdvf0aFn4qyXeA.P014snNgxE5buo.FW_o9YTrXyNzdqvln6GanqxG_Hna9AYghvZVqGgM8IHm2Esidsfh1Y0ty0znfbPB26JA7a2a8iEt3npov283ZrhE3vbkjDt5m5eqE0Kiu8XmDyxknHc46uD3T34_1tnkdpFy0gWB_eS7QNogXgOowShfamML1NGfu_swbOe7bU30_sw0eNBsr0dYiqwIfc677rhtaOySniDTfhyK8AONZuVjrMbpJXeQyO7jKRf849G32y1QZKE3YvVeM7OGQnWHx69TIq0ls7ModWqAWVOeSNe5ly81TwDAMNfKGN0aH8xBG4RzdIwf1IT6jCAbdQ.b3uY2R1h2hHjjV8Ajuxu9viZ5VFE9EypAZNSwjn85SoczC5RzK7b.D_G1Z7h2at4eDMI2cnA_aALyk3nDs.BeMBhdTSmvAITIeqhHHjHNeoX4LaBnZPRtFY64ImYvfzh.QpjhGTZpxWKRkvz5DW13WhhPBK7nqoJ6tffJSMIpDOhTAeos6c6bBTVsTZ63dJzrS0FtvlHVP5uNI99VDdm4kG9oeBEQodQeA7osYBUz1g9TYm_fvG9urVYTHSf2lwHitAR3Iz7oAdcgk4aNotuHpJbjNQrLtcWBXoyJQgpqoFmT9RhZJ0knOG.AtfqVuiMiLCvpJekq9S6lI4r0N.ct4SzN6lU6o9dCpaCoEujhEYFX0hpG2FMAdoMpr9vuzhTSo5sd0g42tgdCIjlydf7UsgZQrChGuiAP1ChgKVHgPbXv7EkSw0NE4Hv8pSf3a_eQH5BPC2wTSM70ySahpYNcqbvlQrcs0I2krJDPKxNre.rakeZ57Pl1qz03hKgDW7.1aNcSImHnWBsPlc_ujmWK2Yw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90feb6389edb9c2b';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\/930974474488?__cf_chl_rt_tk=gWd6VKIKt31F_1r.uMPJUlmB1hIHI7EZp5XceqY_nkw-1739217903-1.0.1.1-QGFHoEKivZM0JJSa.Fcfj3zEB3aO4Wu7ERFMWPG2iP0" + 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