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-7402538196-gov.washington-edu.pp.ua/post/7402538196

  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-7402538196-gov.washington-edu.pp.ua",cType: 'managed',cRay: '91ff2d0f98f58287',cH: 'i4bFaLD2FagemQtteAVd6NsfzjX.bYvvY9T9GWDL1OE-1741907125-1.2.1.1-1x3vsSDKwC5LQ7Og3E2qBu6e0kQNA8QFyKtqJWfwwkFmU703BHU1VrDODEBUVxl1',cUPMDTk: "\/post\/7402538196?__cf_chl_tk=duFh_ggfYZtDN40fnCaTylC.iegIOhoLT1PqBuDFDMg-1741907125-1.0.1.1-ceZANfFiw9SLIOCjRd.qSZ5YjYCRv1mW9CZmHjzzxTc",cFPWv: 'g',cITimeS: '1741907125',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7402538196?__cf_chl_f_tk=duFh_ggfYZtDN40fnCaTylC.iegIOhoLT1PqBuDFDMg-1741907125-1.0.1.1-ceZANfFiw9SLIOCjRd.qSZ5YjYCRv1mW9CZmHjzzxTc",md: "CLvSxohGiAtKQm7uTYO3ObacR8fSGEPoKPrTFUVmC_o-1741907125-1.2.1.1-sZxJDf5.gyutrXfJ3tG4kPojccaCdfG1uMEt9DNN9rSQ7SvtOXuWBD3pn5cvcPWpA1umybZurGjI0NLv3W6oum1WCHfxItrMrtfPKl7pEjJfK1pMACnKsCGS1SxtNQVcNkIoq2VjGUiKVm2k.4VGmHpa31ufuM6mOFanrZw5I_Kk4f3IIedkKRPWqncFbWNzUr8NiB0_Mvac4wbaN_jwvrFsRge1_V4J7eOdHD8gsU1VyiLDGJfpHGmSMa3S3t2sEntjf339ISbsrcdrR_9P7o9tpZ0GtI3T5phQnrXIWdTlDiR7Srw4bUCVtQJuLlGVHC7UBDRywgG18jhBRHx_pTRq1T0hlbdVAK6R70oaE2gutxohnYw7DoKp8Sb0h4edUBhn8Gbec5s_7W5wwuIU1fcRThO4qNL0lL8TnGzu2hgpvA0uENmtwHDk2yl5xSsC7wY0qE6VTUUISPtPaghP1O9_YYA20vcjoMdw8dph8PmcRvxx4ZSw6J_P0.3vO5kpojdzBnU_b.v.FtBsxa.okguJPAQIgaaH3hHDmBqdY4PbZfBL5x6swgGw1xCZ6miaIZNGNw0CxfhRSIi6OxExHhBpfq1v82pG0APUsG9TwzeW6xNCrk7cc0gxFdzzbIsZ2z7YZUv4Yj1EemvLbsfGscWn5S4TNWRvNw0TvVSvs4.O9A6tS5Lx3bEjBu3GDDldTCMsbmFuKhEK90q05oGejYuaY7vSZKNsu6zEuGKIQ7qoUqqfytzeVXB76SS57H2lT1iTK.ECjNr6vHbz2hBXS07F9pyjRQZJBAsIxF0eUiERWA0myS8h926pN6ynA2UH3oTqMjTrfkWFi8lfw05qIt0.cx9lus6k5WhG1hinWfMEZIBteFTL_xjADaHkwMw5zyW3i32n0q1FpOoxwUtRz8nnCnLhiZVo.5PkjZCYnhCuYESZtbjDpkpDyeVyF6BpFz9OpjRNDORVo_XbJIhwWA",mdrd: ".ER7ObQ4DuGHpoYdd5txiXtsl_0ebDU32YmPkH9T22E-1741907125-1.2.1.1-gMpv0.aqCNNkaqAL8yrKJ.Dyua9gGtnTaFwuvgz6UFF0bPVGESHdwoSY9jq.tRevUvj7YZ.7A.RTA12eqAbZCwFIik4lxwQnSdG5iQZUl.y_9.QO5H6T5RSUXrxMbMs_7OVnCEwFKMv.rqpF5ua58bqOIJh13xf3.UNPCPrlGvHbXRnkrdl.gAWZOHyeZVbo.t5XK_8bxj4h96z3y7FLRwX.ss1y4Y37L_t9A5kv.zjDk7v08e6WqgkJrCrEDYOgolibuqqvxnI8WykLB83Jntax_d3LRmguabmsZciFFXHhVPsabhmwYHjauGljVEvkj.GS0DwXjpR_GlVsFv4uMxH65vsJ6BdsTK5x5IZFI3ElotWci8I0MNbG.pZiORRRnc3K4LOyKS79GXg9Uwp56IiMJ3nHYyBpyphxs.rNMC6GSLIuEL_XAnN8HVXEvGWXFpWpx_5kgV67T5yipuOFxETzjv7UNve3WZDZIeghcMDb2IKoQdBvL2nwyANdWjzZwVNmTt0hG9rbPy2C2x.iaVoZiIVzF4oMgk7bZpZXc0vPJgAo8VJuu7zxr5zDqSSx9IaSCfdNyUgKT9lpnVwEcS2Pv19Wg2w3x.Hjd.NIDNzBqA.c9Bkh1MYvwnPBRX1t.zqrxtXVLHz8v3ZZ0xzwrhmocMRdxzOK_MUcC2rDTfEZ4nnRgB4oJbebkWH3Sjk5GbLfouj0rTSnMEtKNqPDORPXZH8G2Q.qvaTha2ZqXb7CI.OqGTt0OWDAY__rT3sk3F3DjiMXV.JHQLcfsN3dWQihJYXhQY6wPy3j6tsAFcTvTawLBClsWJyn6fMi9I.Wi68J1w9LA2u1xEjmrSxU.HXCz6gX77ck49TF3akoP4qYNW24lnmCc2V4SsLm4VpqHpqDEHKGg78_k2mzQpaI5yi_9EqyEDX8nZaSEn3L59HlQq_UEm2gOXwQyvHCEpkinShHc4VrGeXs5UDdVDKMrsiu5aww7Lj8xp2XeX.f7kF46S5_7PY5HYY2xKTaS80vpKTQm7d2NayjTkTXsS6dJgugYqY3VDwOo9rWMIV3i00VQFGb26vDC7RUJrgd6L_wPlXeka9nJ06PZUnVvIjvPb1KH0bSmGYNDJ4IGnHbEzUgTf3E_DA9DA3LEP6x7VAKAq1iPEWFa1Rwmm6nD10eHtiKiLVAsVpz5jZA.kqpYoQwtql1Ityqk6ZuVfv1z1H8g6SbvkVWeASB5s3vQmG6qFYfAtX3zGiILpVZ9znstQGXBMPGcFyJfV8vosStmdhGaq9bjReQ977J2pKzKAMELFzNk6qIyGXMyZzS._2N6Gafz6VJoYFVIKhLgFYkqLIczTw7THHm2miv2zxT2ebJSrNJZXn4kFq6IdwPEh8S1PztzxIMedS58IIdQ3MCc5_AHwKzvnkZ79T49qDBjzZmyTZOH6ptvrYxBBer7rrndu4zZDUFeFGnj53OHCv8zlwBrZ9Xd4xPgQfRvYfjpxvmVKxAxSynqzaSfckLuq8FvvNGYKCj5NzmL3MzM5jALXu0Iee0rKwQV3TJuLSJZJ6PPq6ctb5Jtgu_u.a4c9wwxk7aq9vrVfFoib7s2naf7bRW9GSMY3XTzBAWOZZah0N29Dw5lhJ.oW_aDPWQfVVqn8Tglaz_7fSGYY_2DCrrLr0g00UXOje0Zu911XiivvYDsDlejoefS83Rr71iMkPq3W_g2EBN7wjgEc.Oe9CIPCTryZuTFNdcW8l.75tacXHgQDYtS74Pv.r0gk0dZAIfwa44fws8qfqP5t8Xhn_fbzStnXLVMovkAXb1M850ji9k3xz4zL52yti1mjeUO4Q.PsFwlWlxNpYP3cblu2l1.1OIaUlmxgjqo7z7u6JwmP39kg"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=91ff2d0f98f58287';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\/7402538196?__cf_chl_rt_tk=duFh_ggfYZtDN40fnCaTylC.iegIOhoLT1PqBuDFDMg-1741907125-1.0.1.1-ceZANfFiw9SLIOCjRd.qSZ5YjYCRv1mW9CZmHjzzxTc" + 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