for Atom and RSS and KML
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.
<!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: "blog-513631026311.mit-edu.top",cType: 'managed',cRay: '90f347deba063b24',cH: 'k3y.sX0khCVElcHxsmpQ.iv1TrJZvBSNvbr2E.UlSpM-1739098040-1.2.1.1-hBPDF1LucjE07HHXQmtYGBERLU1Gf00oWKOSzY16QueeCD32U0v5Rie2iq7ydTwH',cUPMDTk: "\/post\/4375021869?__cf_chl_tk=6O12yS1UUPjrxKzWOn1DQJftZeb.BuuJA2hUkc_Sz3I-1739098040-1.0.1.1-SCacUwoIjZpNIrjTaEq597LNne9MgelPuE0UBGYsE6U",cFPWv: 'g',cITimeS: '1739098040',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4375021869?__cf_chl_f_tk=6O12yS1UUPjrxKzWOn1DQJftZeb.BuuJA2hUkc_Sz3I-1739098040-1.0.1.1-SCacUwoIjZpNIrjTaEq597LNne9MgelPuE0UBGYsE6U",md: "JZZA9micI9ail7EJOTKAKN221HO3k8Xvd9OUkZN8Jvk-1739098040-1.2.1.1-v2iugEmR8cQ9IzQ1z2gg.baloELvJCnQGp4tqEeQou87ldeG0XbP.JUP1WDSeuQvpDvDUPbOPAewjDtYNbVvSsXVJJMl5PRbWp2obXUkirvbeSGr7GE9PY_iCd5cxRguLG5xX5hR21JnlCWGLAKjinezZGEfXnGXxch34hmAUrQdDSzqH6ZB65lkBx.sdKm7OVp35pBEm3ZKL93F4kx5aQD44OZQziWsk20gVdskS4Si1nSUvx_B8AK_HzXJhnMt6m72_CZj3fz61Py6A5XW7rgLz9XD_HgJiZ47MnmdtlOP9XkPdvkdhqHw7Q.UPLzy7zaUdZBgw6jCpPnoDxLdVKwOCCtivNdrGK5ulCu8edy9vq_sj0452M_U.ibAhfu6BkoU1Rg1Ugzy2iesvt2gV8JjxkXWVt3uIkbV6sxOi6VWnX3tINJKIKDzSNRBHoFNMhTEHDtc_261HZqF2ICQajHVG8utT3d4QTuaoh4WSVVVTtV75YayubR3j89ZxlG6VzuIRsC_8oWzYwcjU0Q0lOBTjIvpL7QTG88Qw495RLMLrJexq8dUYsKCuT93OAoy7P2_4yPqvmnMyKck_7ZI8UKmF_DcOAIeqrVHCx508Vcke.5dSIOuvJ0qCeJsrHelIDiG2JrdCC3DANGZ2HHh2iWjwiVQm736CPpVEIggzn2qxrJr_cnY9eLtCjDPR6oEWk2ltqrMz1b056tZS_hCA5IFAHF4dUZcqp52_9KL23snwabWId9PnOM4sNYQbOMR.23.MMXVmWQ4yH8L.IPUE5bIl6kuL9OMrrhFHCPgy2R3CMb1Kztqp4RdRtFGYz8gE90dYF5P_1J5gPuCLstalpiNfvyr1tkrlKlKlbgv4ZG6rHPDnh6TqOd8rkTe7xg5oEBGmJHzuFn9hT6dutJRaAUlGaYb4hHxmKwLtVW2Vd31ngc0Xi2BJqWifwk9ZikMruDOHhippuLm6eAeOWRFO5QoWw.zZkQ4f7X_bGDJSYUA0gvmyIqGo2NgqNMEevp23RxrhLoA517rZEVwuwKiGNXzz6CBcuE55Y6ZER0g7D9iYXaax0GHi81zXn3FrjdQ7vn58_b3NzyYuhQWEnUXeWXOJcUwQcqjKari8si8RPuJ7xhYShmRaSIs3FgHwQP04gH_jqU3rgEmKgf23rmbjDGYxMyV0y0UX6sH.D5sv9C3SiMSJQVjQnaMG4QLMeetbebObPOxhKu2gPMobK.gZYKZWc6itHijgodgHSBLrhjLxkz11Yx2O20LcLTpoSOeA_cg7r8ebakRojiqOXhUN.PHS_LEXgjjaFrKHbf_0RpjtavG6By7wwqcvdHQeo2a4n0Fi5f9stJtVjkTC6SKeHn_YlxfRWy3HPLAKezVWQyj_A.wWeBWmpBY1fe5bIWzebsIoZw8hIU.EeQklXaGaOcmQXf5wNISLLMsWTrSKAOar2WeeLu3BvikjiGEXFwegtn.aP0cUcaRteXdRqQTR2PnSXgjKUcb7FS5ihc7XQJIiUSnA1GyMqY_PAsCTi3fUAh9PgvOGlyJlWQBOsV8qyliUxLjdeWcYOU.ITVBfmJtyjarCQORpwMwsxTcJbbtto.pSzSTt0DdwJ0asPUU5xrQcL0s1ZxxFjSCn5TTJU1kJ6lLNxNTwvu0VYRKpVLFHySAQxEpKQg8ebhXx7VKXhUazCP1GFUxMyDNFeIDUO5hkN9EM9BkjO91aXqoE2NUCkLXV7SH5QwSLxJpG0sfYfwwNXNm4O.hYIM00mR7aIMHAXBU9Smeu1SvBM7_tOiGnBakr0xfbxLHfiWW4wtLO7X7XMHO4VfLJvv73Roy9swXyXQrsMF58gK1Clla9KslSoeHuKMx3YyaKHTzGREWpFgCtjEnKJ3nGqLF5wG0iNAEPQlCH6QIV51p5hFIX.GKWS6FUG9Jx9LyssdTSbdgIHI0rtBiiNDwyPEbiqbDni7FN77N4WaxwXzTWFev54QHaMvMfT5nev58w9oUq0B34L.RKiNik0GhQOxlDJBAKOFuYZ.x4BH8KN7PLCZH_oFCW4QQlecVQJKXtvsKd3408OZYzJskz2zdFlMiXVClpFPu97GrOx7NbXVENMmQP9elQHbtlT6F6nt_BfeZEDLHc9Wv8rzvyRJL10FNW1gWHaeQNJPVBsnBuIbtRa6raJTvyaeRbaRlcCU4s5nOoI3N1Il7JlKFW9LZ3IJpvNV5TMY9Klz0sRjRpWfMLo_isxNr",mdrd: "QS8qC4WDsL6hT3wqhJwYBV4RraO14wGEVnd.KfINobw-1739098040-1.2.1.1-pWgqyQ6REs.Ig7NsTtugWjaNGO.qcbxlHLEYDk835fn6Dgev0woFiKCT9Xsv9EqDRT8NvZvLMpxrsWp.ziUWLB0JbgauLEsPwPgMsJK3eiSDeFJvohHiriCsOtI7YshAgSKde_EA8x7Mgq7Zu6rW3UOHD8JzlIScUJux9dqRPHRnbI_bpbDmfMAiDu4.s2vLBU2x1VUEWMh41U_rALP20vy8htH.UwKBNKzswFIbQhix8k2MLP7l2hMjNIj7NHTHnCbHpu_uGTS2WwoZ6RIsdAHRDxd.OYeB191uZaK7kuV0hThe.NvDKrD3QskfglmOJ.jfUCuQ_UnaQG2WSfm6HZWbNRYPcboUnzEHnDCl.CZj21YxaaRtgIu8NKqAVeKrvZOl.xI9fGFo4HR7_nawKjfHapGNl7Vj2b7DEXU1Zhh1DkUWIr4QEzRpYoOfKG.fmgTFHH3jFmslOFHazP0LtUNAAres.SuUzKtDzqAGByi6JeWa9dKe3cYw7Jih1.yBY7wmCrAANVwd1R2u9jetmTK6HD6VipXkHS2EsfL2iCyWNRuVM_j.MsRwpyvgU1Q6WhuvQlpHP_CwyD7ExcT2sGk51gV1S6MaISpFzKBihxJ4fEP_XMbwPK5otF7Kk4Dm.lw_dKAyIxUx4HccSboopOF9zh_Fc1Rjj8Gd8m79SO9Np6mo9kQyDMKzRa9ydnZxm6IB81WSnBhnLtIWRM5KJQup3E6KLO94QtsD3HzLG7UVqKsgjrgwaaoXmeOp.geRjhPIWGju8QFfTJvDIwpK4.4tWWqfrIrnA0qvACZLrq.iEVStBa4YHJeGjz3QxSNPLUvf3bb4p.iYbfC4krDMqCDq2P8RK9nrOdF9UZMuxEIJ6HFwmOf_l1ci_8dt7O_vZRvmNx2fC1FHFQO76w5KbuesVfjEzaos7_tWBVUkqG5RSWG38mzTUMKJht4Fen9gDlH9Scvvd_TZQfL2bGiWb1MgKCJP2QXq6Yy1AO_Kg8DsI9okf7D6adk3LX4GMsT7g8FjjEksvlH.VWD.uhM5s7zZC.RpxvCZMd25tv8QFNDz_OBUT9VHzQ2g12NxpugIOsy5ksEByicFMKThOgMWw5_o6A.wMMmIdsbrB.vQTN_a1mYuBNp7KIOLbbUIRvCLFdZ1mxXdn4gNZtgRSXZnMwXuwXpnI8d_TyTIeW6dxbvPYUstVgqD8KY7wC8B6G2Gq7R70NNbI7zrp5czsyHBw00EVTvlKahIgHRbqMyTLW0F.qSqaArAtrkaHLuJJgPj_ttwGEoJPO7D6JHs5BGuXAWHrcmTGHTnwt.vFO7wXYYjqSUzBYLNh9RRvcNOU48GHh1cSLfQPXzaMLiuYyrVfXv2lJmxfckUYERCGHJsMEA7b8005OoE0pSuIHtirdks0tsjybC2raq_TG59sacvNUagzzllUaqtGoEUOHVNYPtV0vYgqkm9eQABv9oATCm6EAcr6tCvydKvHlP.y.GGpgkB4Q81ZNK.vbkNBtrZFGCpcgGJ9G9EWr9HUePP86HAS3uyEahS9Go39ybTlUcJA5xEq7zl0EelBK5XiTBmQHjRZsD7Ce3gPxl0FbwI9K_HbQAJrSuF.b2zqVhGI8mpsEYgzWbAKM0lLTpQLkdRZ8OQYjgFcOCuXa8TRRxt9fY_ZB5Qq0wHTo5lfBaqkT0GcV9Kl0ymP9j78M68bFGOmCt.CqWSpOk4wSOor6OaSNf2nmP7G3Ag9IqNBVOXwLh8CQV4Zfgq8G9V2jjSJbiW6.XJPQfAcMqvd_844EMYSZ4INxkCckJgr4hmO3.V1.HD8YzA90KlvQ4Agri7tRhxBuk"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f347deba063b24';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\/4375021869?__cf_chl_rt_tk=6O12yS1UUPjrxKzWOn1DQJftZeb.BuuJA2hUkc_Sz3I-1739098040-1.0.1.1-SCacUwoIjZpNIrjTaEq597LNne9MgelPuE0UBGYsE6U" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>
Home · About · News · Docs · Terms