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://mupber.mit-edu.top/post/5193840726

  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: "mupber.mit-edu.top",cType: 'managed',cRay: '90fbdf149eeed66c',cH: 'glBeUxfOlnkK9QFL9FjNyLW11Fcj0tWk2K6WsFe.G_w-1739188119-1.2.1.1-Tv.7OFE18z_lzMcg6hwxi9D3EXcrLWRmSrCA5fO5P5P.qzg7Q7nd5v9APqOLtiuv',cUPMDTk: "\/post\/5193840726?__cf_chl_tk=Wj_sV.Ujd9EYLfCQBBM.NK1wZbJFa.tGEFgN_yA5jj0-1739188119-1.0.1.1-z.PwKJ6QHMiT40PKCxxdu0lWaquNP2mOAKElFbbTZ48",cFPWv: 'g',cITimeS: '1739188119',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/5193840726?__cf_chl_f_tk=Wj_sV.Ujd9EYLfCQBBM.NK1wZbJFa.tGEFgN_yA5jj0-1739188119-1.0.1.1-z.PwKJ6QHMiT40PKCxxdu0lWaquNP2mOAKElFbbTZ48",md: "I1aA7rxP4CyLaCbRTWuko8QSYQy_sH.ePb6yj6_d.iE-1739188119-1.2.1.1-lnAPZzljOOnEb8t43CZOICQWVDkYOxAtDZHsyL_etkUxE4a2XiQwB_YQqbI2eFCWzILqf4yM8g.5hgD._Qrc5t7l.qXuNPp.skdh3bYzPtR3XRx22F4X0NfvcxsbISl.MwTvRC.7fKzOBxo7FT1sNIleFl2aLs5Dhyqlyk6pzxxVSD3D4tkokaP8OX0Q1kXJK.WoinOaEhlrnH4eXfb7ECdqw15Kc5oX4ffgl5TbCXRb0ZCOnE2yOAOOuoE8jxazK1VVOUrFgq06VB6Yd4BySN6Qt3QXB8e_W7Zr9ACxkqSkW2S.W7Jdhcr29Q_NzR5lXdhOPUwcqR7sweaxvNDak7crkBxxY0ISoJi_xTZmbUQEcXoyTzZEOUe9lwmql7A24tnk6_5Effrel1FqAF6.R5DoJwUURD7ri.jN0_yGS3Qw.suhUMsAK7Fj_l4fK2vdrhgGzYhUNoG4BkzyxnK5cioFtcVzZ3H7Erus92ci2aFq.exWUxpcNa_pxMfIkT3VjOj3la23UyNv54HY77uDNPR1RJpSYXhnPFOEVjldbUUaNRAXflbMRpYfmSSWF6VKQxJvrBUE_oUW.MnVf3c8NkPjMq4en5fT96j92aDuBgIhpMcb16jbynqHhko5.Mkv3LLRXQUDwA5ccXD4lrvs6CczyUQNURdk4eE82qTS9VPj2hHp2JWiSgDXyTqWhFjm7odnraj20yjHAYoLYeimCIr.378zpp_GBhO.6XsE3HRSikW0rMRfbn0jqoE0RqSlOc1HMlYMFaLif8p_ZEeicS3CToopMPkyxV5Ji35R1UiYod9HvhTAc1IDt5p0PDbE03JuW6qXWrGECHo9BPdD9hJLYkH0BsLudJ26YnYQCCHEo9wrd8zbFiEVLcLNZgo2iXLCkyhgFnSy.Y4vRVPyVXYVjZ9sKveH.m2z_5mbwr95UpJ0Eo8gI_KsK6_dBFVOORfSAINlHohdmpBbaw79pn7i8QO672MdM5dU8IHKzmI.XBul78wbbNkAwPIlXwU2zQSpgBbuHHnOMXOf.B_038oioAt0n1LkpoNVed1hHd6llc1425uZ.iPTVMOBVLq.BgfgPu6ZsnscSteoAxGT_WZh4hs_fas7HqH.GULviG5U8QahDfsAg0L2S5FKW0def59He7kOHP4RGANiYb5K3cx5DFUKGNv8O22PGjglE8SSIyvW7L_cFORQlD73BgRETUGla.yz0ni0gLWK.RDjPCSIA1yeJkxcCjAw4LdYy4l8pgBEfz8XojpOLpHV.r7igXGMdF3dpTm6ImguZ8DDv51SOO0VDnCXWPd63JtPKQipHDDkwtUFB2LrI_fUJK2oomTB4zrwJ_0bvTr_eeKO9752Io2rh3ZFRuFcHfRuq_Jo1P707j9Zjp3kyu4JzhLPx76lLAzZzwrx_FWAu953jRKuk2dhH.gY2lEblLwDItMYFXo7LZ.1VB3DE_AjsAb4YefsoZjeAnXNC5WQLRt6csC3rM3aQllZACFvicDtpes1RUNjs0b8XVR7cxvGiuaIl5uyQkfK2MgnvWdeXCcwodXyPxYyr9chz49vunk0E69IXYj.qHGmV3j7Bsnj0zIxpyHTOX9N3wTUTrCh0Igks_EF7vo.AUAEj4ExlR7XB07yuHAekILZiQKOrRk7cdYQlNSqaav09jSFiDvNQwQrUVQCbYQf4FmdLjqivHB92ADV5zNhPQtw8BRx.u5ZM11cjIBa7bNz4N4TRxmLzA.O.kG3ZL6pKF0Wq4L3WgIw.rctlhZpa6hCWVOpD9bGoiwV57Sf.8kW7Q9z5M0MnXCKys8mnBDSb5yAWp8rIkYQh3auytFLwOUbYilZqxBKldmR0W4QXOfnUic73z46n2eXwUl1RwvKr7n8LOd9R8nxxDjgm4jhE1Mimg_5scfDTvhZ1vosqq..oCFpsMOzNlHpbU7vcr9DKo07BW.JaIOm9ZGFj1TheNAWiihsTh9MEE8C0Wy49vBZkeR3Qh_hfiqoHkv4Yoxd2GGgAdoEV1yCHoMwkZAFE7A16Cbpobd3FZMavw01G6FEKsw0JjNJNGfr1si0AmFC6CYwzNmdxmBOH43Nl0oHAYpOQccTJ0mMnaW2ciI8T4_RzRMZ3nyT49iTzmKBVZMwmgNUJV_5Ka53Nv0zHVL36CfkODea8vtsC6.HgL3lQUqHMdH9_m_R9hQq6RoeWcSfcKQx85IEr01nsxg",mdrd: "E1v.uI9MYIaPGjv7Upytbk_jP7TmqaUjBjLI4cqcK7E-1739188119-1.2.1.1-9nvX7qSaMu7dsAtBaYbS3YhjuZBB3C2SASxM2f4I1g2ElaVcTXFsdbtY2jfxHbA7hARxOhYI9R6RGXgIehr_o4PHzTE6cFrbD9z93co4kTs1_K76JTQ4wZz5TD09ATafaoAsq9ubgxJ9qbRbOdaKlBmp.qvwEqWuZjQijhcQJyreW.UOJDDzu9yUbxuO0f6TmF7aEY.qQ1wHzQwe9T1_OysVibtsvuwQp13NRpFjcS_pysCU1CypMSy95xlEUJqbpc3d4UJ3hy.PN2H..KX1pj6AcxkzATFWt1cxa3.IsiefcfGsj2OdUGMomL6tnDDCepy1tmWNmdFz4zg4KaEAHiWPEyq0QwXpMyBKkHaHUQnOOVAcNrz_IFyGrSCCxLQe1dnOP7u9YDmh4725p8cUlYgDNjmnNcW7GJZ5CdEsICzVt8DOXCzxXqb5aQKAY3U0RWh3P4xgSF27P4.fH1bs7pdA7mHZxbmnxe8vorfDSH48orG5V_DPCZSjZXGUofsPvOmA_8CpQONNFUX1dR4ePZfpeX3sHkZ4Qmalik_6EqzJntNrxixTf9iOyamfW6N6w5kSOEGAIenAu0lmLUthzNJkqAbKuT8NR8dRjUI87mlsnxumYv1wCtsmRP9iwTelbjXHkwSjwiDP72oc1mr4hZUWUYkFRjOt2yvbvJbXum_.mVIAAvEX2LdjYwTkxy7MoG8s0IBFq8I5Yszs5_Dmw1nKVSSsZJSgfDiBgLj2vfDPi4Tr_VEUIHOgYe1OGWmYoImqP9oz1eRPzm0st3rn_PHPujF4Y0iqkB7wAdTk33pdoktjT9xbwdzSAHT7gK7XYVq1NDPzKD5lxnOE0gAU0.fZijI2fp1A01dmQbKT7uNMRIFUxJvviIIxUs8pCrxjUCtGBiZw05oD65KaSXfuGOOwo8l5xKAvsGHFsUHOxJDuePB15v65eCu1nL1vFvigmfhyINlGQ7tVmfNlE48eMOxYSpa3r5ibX31vNCrXU8pOh7I0F7r7TeULv8wR5gubF6OAOdW.g.JZ_qOxNJRneO0NPlGcbN7.QxGcjmuRwOjuWYncu6.mz2Y84.GoEuNOMz58imxWUkMNR.xBwt1cERU9G4XNrpKn9sKqUYnfGjpG8_AcYxTR4rpergExOq198E2maaU0pSZZGUKXgQk8szrjZ.SQ1zCjW.RBV1o_IX2kaHipFrz75dBp.QaAo9bo0bDMi_iNhs6Im1H5m4KHRkHiGV1CCp6p59mpQlTm_viho5zoNPnWljssNwUA1r26ypLG6bT2QrxJEdgPqj2J576iugBJ1xe92t8B0XTWK6U2Yh9ov1CG5UpdqINedISecYNYKMgcOONvsQYv2oyu.TOLMJ8glsrnmQAsKtUN0t1qckUkJ2IlC3o5fOYRhw1LA9RlVdyY.iw8I6RQGcHQhxaN92rOO_kcKawZ_SjZOiYXHmDYUTrlF8ZT8dLaxXlqVhK93KEAs.u9hI5X1uYhWxjCUpXyaI1ddP.KLj21InioMEC4Xqopz6mvg.wokBtg8cl_0BgbNeg9LcFQePNx._q8MtW89pp.l1Wvz175ZF70kF8HiVfKLbopqUjrvtfMeaUgosvE6VoEeF1rmt9OAasG_xMUz18fp5em3t0N3q4qcKu1DGFiXPJvIwK0zKFov4z3wcQQHvfQX7YLjtKPtPkcuvl9IZeo7Gm4szmFPPwE47tD4aPOzFqZAqYc9f72M1a9EwVm5LmN5Yk4pi79ssBDwKNgsu1nyPoy76j0O.m2qOsvCYleTZrzTrj4DyhaZEUlOnSOQgB1LjsGYVCdKQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fbdf149eeed66c';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\/5193840726?__cf_chl_rt_tk=Wj_sV.Ujd9EYLfCQBBM.NK1wZbJFa.tGEFgN_yA5jj0-1739188119-1.0.1.1-z.PwKJ6QHMiT40PKCxxdu0lWaquNP2mOAKElFbbTZ48" + 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