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://855541.mit-edu.top/post/5276904318

  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: "855541.mit-edu.top",cType: 'managed',cRay: '90f242815de059ec',cH: 'ENWP.5bQW_OJbaPXjvS16Evk.15977Kg7_dIOsAtrF0-1739087334-1.2.1.1-pFT4gG8t4bbGxVwb1a8lnXXKeJDGESDLZ5wyqFJcdc4ZWRjOSXWUFQfM8uzmamJ_',cUPMDTk: "\/post\/5276904318?__cf_chl_tk=CP_ckcar53ybpQBlC9Maz0Z8sHdcRYajMUaEB4RD6qE-1739087334-1.0.1.1-_SondUcg4S7myrfvAJ3v5NKFgN2hSR4acHemlmb53B0",cFPWv: 'g',cITimeS: '1739087334',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/5276904318?__cf_chl_f_tk=CP_ckcar53ybpQBlC9Maz0Z8sHdcRYajMUaEB4RD6qE-1739087334-1.0.1.1-_SondUcg4S7myrfvAJ3v5NKFgN2hSR4acHemlmb53B0",md: "M67ZpwputtMdco1WzNgNzhTgTt0DHLDZExTwU_x_YBA-1739087334-1.2.1.1-zgmtuobm5mUMsznAwHl8g5.iSPuf_tZjajQUNqu1nrginP.njWY1LVClTx40HxuTnnhnXVFloeifqxbuBWq.xGAdg7Hg.WGpJ4pdSE8EgRBLyhAHjMVeeSO0W2EIigI9XCyOfKWtUTiehQEsAwqNIKEPKjEqCmlzSSKBtLB_SzVw4khkfnidzMEDu1g3wtQ1XQlxkq2UOec5etVh_a7qvvp_nP8L8k_N9dMb5Q_kRFUSvGVtK_L_Ou9.8gfrllrXrFA3MtjhUj0OCm8vqMWfPOM4IPa5QOrHkqTgoy1UrA5M3Q1ZNf2RhWn8zWJZBQouALPHeCQokKbWKlfLMvqTqp1tnHDDZMcp5qOzaIjDxQiI0sS0OjtrwxIqypIrz_ULSFIaUIoHjbCz0aGC1V.0M1Vi9UQgSPtaVpJptpsAovZj5vGHdsZ5cavb2gGwmTEBze2PqXfz7YwGk8uwwDor_zxt.RUIHMjJjIVjfatdTnBXCFlFubOH4LeOgmu0Z7EwZAGgLS1nu5YKzl2N5fekJwTghEx4vvrMuHDw6hzdtd_f3wtnsTZSVjmw48uERJR_02DIIbQv.N8zWLa5NRPdf2enVXt2KjapnfMfpURiU8j0t2G6adK1GIyflWNh8SykMpcnyFlOnrzmVAwHShlXgWn3I8HzC2JNNsLGtmuBlJKzjbqQZkh4BeUfqqNDTJVJteAL.j2fS8JVEX_G0zdWK.aWwKEvWoAT4j4pNR1HLHI9r7p86MOjRWBBL9zmN6gIIYKgIcdk07CP.i.IAeC8RgQci0h5zKYO4b.57_lMbcLoaWMZbJ_IIJVGNyW1e9jAgoniRb2ueFZ2diHvdjCK_I2Qz9rYoWuuEJSQp_44lbfhQioLSLnsVOTgvrxyxTCRyRqnzfoRPLWJD2k96aafG7IUWVVWc163qRpr4UzFoAKWI5DbMTog0s.QDkOKy8GYfckCl35dhwVkCFhXaRAF96.qWs7Zc1dzEfhOGDe7jKTqO7kmKfC62CtQkZoWw8N5OE6OkHvnSiwF40EsCeqn6b6rfypjC2g0cqaumFbbCxEAFq6AegXhEWhdC7WYL95B7xCV5EE0oXUQKF8qh.tonpJH.OmnyhnlKhs3ANZfczyEOY7Xtq1NtsjXoVqPiWPm17cc7bn5vLEl4m4VWmU6PaVS1cD1yKeig54ifi8Z8sVOCiIjEsFB5oSzs07gPsl9Cj9.5dczFvwedczqtuP0WKZ42MYbx4pzqcSMD7NYNkRLm36QrsVCpQ_hQgP_7hpJ8um3crGENCqNKCsch5IYYafh4Zhah8SHTjw.gcXH3eLZRh4E0POQMHKVJLRjtCxJLeR8CP1AZavzg2loozQGp1i9BH4JdsCyB5M._zyakvIpn89GGP4Tb7CVyNm71QB3fPPZDz6rfPqdMQGMblYBl7S_b_34IuOmuGL_IhTXNBJg6BvJ57i4fmsoxjrIwsy2VkBAkMYDR9Lhl9bdP8iir5FvMUQPilpPUF7kO2eOMsvU4vo1TaDaTTbEsFXyj4vbrwOB5YgrowvfNoEQcVplema0VdErUa_jzMjU23Seth7ZX3rRZHIAy.teIaR7GTV2VKO23vE8FvvxL0htwHz0u2OIQFq28D5C0oA28oWfGDdc.RjlC2hwOmYm1zwLh7hWqkTUsQylCBObskMm..wswzg.DH6g4o_wVSLzgoOxICD5ByKfh5aMuvTJYYvHFTJJvA1tzpHoRoYM6MRENBHL90H2o20JClDqvhfak2eCmdvh487kqUP8sNuAqSS44RPzXANHzy7KdvM5DwHNb5Xofa6CsEMRcI8hwYNe.lVCN4Wk.G2pXGOe0_AB_LPrawar8hx6QK6BMHU7Xkk65BJEEHS6yY2EwjB5NaQ6HD9N0BYYmZRkU0kqPMah7sid3KpuNOMZm9khvzDHED8EExom7fRSXPXgU92O.J8Aj6A8vWEYcCnRFxG2kn66TBnhtzQ_Bw7h5vRE5eynvDGKS2bcDxNK.adjQezLS9r3EEaqNRvLKv6MH3.x656rsqZus4eLI4EcFcfafEHRDk85Uch31YXQ9bwcdiZ0AONmA7FbacD7wSMp3GftPO7o5sRMGjpCb3VO.f4gui8P71PxJy5kdG1ZeOLQYO9d8V.kNJYhf5YVowK8Lh19TLxfywRfXQ6DZW5sQRUIfBq4V5_rkHOMj2qocytIOyHaABa9upXycfY",mdrd: "RYfOjq_gcTPvL8H4cWooVGN0D3uCXGRfWg27QFHtIo8-1739087334-1.2.1.1-2fd6GEZKSG1kLajxEkF89cPEjx_If0zSNVRsBkQhcj67PQjYQ28OHTtowcOczM3p9.G67s_s_kj9vfWgg1eUPXyKL.y81VObA2bN2V_DqAmKtZl9tZtJXy0nVi1wEZwPxFbjSpJDDYlTtiv5Se8Wq7qazTdr6sImzfsPUtkZBuIRIp19ala9vn8fTfs48shO7i42eb0Z.L784BtqDsm3dUMB6Fig0BuM6W1nkIJU61_h0kXNUDQgQak7lRWvwl8AhPmH2wjoKt8mN9w.oSqkPg6DS8_kDWFLgQATJXqtTcwiVKssxIQtoLS7iQhSb2Y.UuFe0piBMAJfecjs6BjZ.BHjyoI29nIJuyDcs6CSdQ6_0kpIqG1M6sFtPCdMJQ.EPDIH4rQhFIA84xPAlrNbRoMNOx9_5_6hr0fBeM4Q3ygoIXXuf19RwNiC0kBSLXFLetfP_K27IPDTMo0CBjTaRUZRO3hL2DK4jpLBqfNRvTvnp.cXXaYtUiyizu8uyysc5D040CdBkfcHX_89IbaRlWvpgHQkb1z7m5_6Qxs.iS2lobfsigXJZBwMss_dBBRCx7NGd86De0n_U8xvLQeo.aZ5NIXlhDkpGlmiUKhYXBUP0egXbzo.SL7DUmNthesV1uTu0jzWOm_6rGvWUIVLuQSaqIXCAu_OrcUyNrwCcugko3Pzn8crqp_gF6IG5PgFHvUb3qPuRABYeW36dBxw.QxDjWSh0tf144UQjydNEtAGNR4638Pf78C6t7v4U9nl7k5rbc4z7eTFobx2QwJ.qtEbvO4grYvG_xl0fn3x2tLqlSxIr3XgLuJKf5t2OhcdUdCOdu5XgPfgbbJ4e4Ar__YPLddVsV6whz_oAStXjfimrrYtPjI0h4yL7fw.kooDMsE8gJ4CTFobgZyeTcbtcszW2v2107JhmSVKxhckmwRShsLODASIuEtcCo7lbUqKXc4hh.9hwqmgKFEw3iTcENR0wmKDXyN4FN70tHXHolsCFLsIvLMTPCnJ9P8omJr1YeRA6xR_Ku0bctHDwyFkDeyXdHTF748.TRHDMJhDWabWWN994Z8BxHFGd.wGEK.tiHgK5BmL5Kmn5VWXfCYEZSOisIjR8uHdunvqRMsV.Jk_mnbR.1btdt.yCoS3aeVUBVw4EeemX90vzhEbGbZOYFRG0w8_SncMImdp0jQtf_6WuRCsZhTxligRTgNyNR41pYNIFnp8YlOE3sFJEDA5XTNAHAbOlLTq1xVehAbLxkVzJTIppKpqDvcuJfyOLD9GtoIee5l0Z8Y4eT.01tntJ9dR9OOBDHn.aZTrv7Hobe_A4E0YhMQlLC1AbB.g1BcziHc8QGwphFROa3pA83_oDB_fJ0y0LaJ2wxxOTdvuzGeWRxRrG1jP5C7iN7_6Sd.vRRoVaP3b9naEcRHAQlLcumjHrPmAgQeDiBsqwgREdORepnbw0lobR0mR_VCsC1Y.wD87EJLxrjDpaA8Z7SxwY_VW92KMcvTpIVstxl8JRPc0eF19gkiBF.kO4MXCNF4cJRH1alnXPrl6N_rcXj8sDbuXlEDtmP0uUk47_9cFrQclAaxH.ImtvgjB_GQdaUBFJabo7f_zaOQyvWCNCPLJ3g4qvhZlwgRqR.V3JhS3SJEi470sbVw0GQGYoCvuiYSG50ELJj2QeN3p0jeRMHC5jF3DOtnkJ6NdOHhNkfofy5X3GkdrU5qOEk0DPQhpISlXjsVTUi6TqCodVbLi6QfQ5ve2S4LPIa3bR4hevQxZ3bo"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f242815de059ec';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\/5276904318?__cf_chl_rt_tk=CP_ckcar53ybpQBlC9Maz0Z8sHdcRYajMUaEB4RD6qE-1739087334-1.0.1.1-_SondUcg4S7myrfvAJ3v5NKFgN2hSR4acHemlmb53B0" + 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