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://501457.mit-edu.top/post/8206954173

  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: "501457.mit-edu.top",cType: 'managed',cRay: '90f9818ba8c1c995',cH: 'cZMU93m7U63RzfADivWzc1zDw6Kan42HUa3ZFZJ8ODs-1739163317-1.2.1.1-1PpYeNpfOrryfb0goYp_h1WClyS_f3_dFwAvdgq_CPAEWYsek1aMU5Pq43X.bON0',cUPMDTk: "\/post\/8206954173?__cf_chl_tk=SgJDZGRuKxh4smAm5KHWQ_BkCvQyH6dqWKqgSicPCE0-1739163317-1.0.1.1-L1sYcLH8ainrgeJC2jHy6QxbS8B8NqgscSZUh1k6ShU",cFPWv: 'g',cITimeS: '1739163317',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/8206954173?__cf_chl_f_tk=SgJDZGRuKxh4smAm5KHWQ_BkCvQyH6dqWKqgSicPCE0-1739163317-1.0.1.1-L1sYcLH8ainrgeJC2jHy6QxbS8B8NqgscSZUh1k6ShU",md: "uc8OQcXkPYOnzFJx7hjeRuvRAYcW5o82t0ZiLWtJ6HY-1739163317-1.2.1.1-5v7KIcj_snwJ2yuPNlTgIUCVWgwKxfL75LG.QgG7vmBhOuK_4Uj8Tw9bVjL01xDI1LgKslmO7c7GKDf3nVWSPA7Ah01H9r35AW8WOHu1ngMZy0rNuVf7atdQxC5Z3JR8gShT42avjum4_MI9wbykO.UBQ2oLreHXp6wfZoNC2Lge6nAP0vxQ72Kk_Dr_8fT0KtBfHk4FuNsW.DIqU54l_THx0pv33H34ibMywRSzFZC3xjw7YrjragUyrjFKnzAxt2nRr36OFPsxdgUomzXax2T2v8s7gw.zlA0ItjpLGyF5QMONRs7ChU9XihJTejuAKXeoWVQHRJs.hQXWO0.ZSb8g.KIvamFpzIzZJzIANHI.SSpkM3HU0S65GmJ49KRrahLnSgq6iPt64d6j7rzucr39l4IYewFrC_R.x5Wc5EGYF621f8_3FECJofqS8O.8iODihwWaYSVJ20cu5EA1elv0mPBMdkY2aYOuh5VJKd4L2sXw4EfOv1CBu5ghwb1l4twb7Lp0VgrDVj5ogZLCW_xxcMzV5mHCo7hX7MazBOc1nzG6ZHPpPBZe76_jDzarfNGriXjniZ1JWK4QOjsp058Gx42dx6pp5mRL8CTbDB1ewGDnOc4k9B3KUzqj6il_nYPCPRDgSJoqCiYHwXdic_4y9FPCHwWan1TmGeJz8rXYYZJB70ViZ6rDLYhnLBulTKhAjDp8yLvbrYmZjUBE5Hfa5QIbi_4BEMfGrrfIX7alPcurekb3h0F9pb8nQIelj1JIF8fUumjacuUv1plwio1RQtVFfDsb24FIa.LT5LnQVz0MidSayMxDz5wTtc1S.XVLJx2v3kNPH0u2EOmogvrqw4mRlWGrhoTSRPjZS6RaIe53S3ETMieZqUFHoSFxqlq75MapRXxNyiDViFD3AMFKWEmtPsvJiGjm1zwDhBrmLNIGxxWOcO5U2azjZfuQXFdAFUNWS8Y2sZLqWG1tVulboStgUWS.LJCwP618LFcG5IwS7QmtewhJVNrAaMBQl9B7NSo.oMNdhSIpBqi14hKrm6WVMvyhIgMHq48ctklDwbMhfPvaLf893ONLVcbJyZWoepLtLYUScjDf7CqpvNhucHValHpMaE8Mhs2GLhltNdJ_nPFl4o1ZFtoQ_HQNP0g2TzdL_7P_70VIkLimeucKTKOj4GVdvLTBOtytDrUwoLHjPnRQ6Airi7e6h8PDMZBk3t0ANZ4YN9ThznCP2frrgfBG7.uNM4W4UOa_t.4oR0V1B6JaaQRlnxlI_f9ZPS2TUGIEefrwmOOc.lXwGOlBCWsImRwy1ARi51KHed8LM.7QPXcpmtsNYJo.EG2DdDKvR92Z1AUdEgku8tOlugHPwhCyhE2IVtZw9eMj7H6IZ2evJYPPjwg1aD64CH.RPfZF70an5dCyfBEX44Xd_vpyHVMX8Ik2ITiN7KIFalTqywZVEATqBHR7XGoU1vr.MC3RoksQVfBYn2vjEcUoh.RAUuQAIRbP91qGao4FE3mYiDhFY2Sb_GuzpYA.YlhbqH3Ec0OFjj7hIUjhORttsePqcVScyq7g_QEG_w3T2QbewtjUs0ttXghnq0iv0rbt_bu01t4CUYqb4w9C8wGHRylWyn5NoEtFUm35YpkJcljwgJfX4eESb9_Idq00.ZSY31z5tSpfFgcyEOZsiya_ZH6Nn_Oz8tH0MZG3v0zJOu8BUWzyIatKUtXJKtLXBNPMAjy_iWqBXS3JlhGzhRkbSRsYyVXFB3DhUWS.o.4ADnk_zgI2s0nf52t2k7gjDklaVGGgqD6ZvYMdKCOZpnfKvcarQUVMP98LHc6FrGHgCEPi6Kk4fKxVXGcwFrTUbiSNldj_lsKT.ILJlltzYvdIOYmSvsC9UuIrYFAA4_6x1y35c0iCBYsz69sjT.acD4xr.b4FUVSWgSMkXYKyhanoIW.3OL.GoaEKQtiZ4jNhLbcGxuGJpCijFCMO8G5W50xxFz5l88n3B8cBbHCFG5wCM_YwFrO4IOVQhvDGiTfqMan3u545hNLSFtEUS7lqht7JDl85WfGA24jv090D4KGonK7MDtUTy.fB7NSlJuY8kCvKnFvK6crNMNCD0O0puG6qTbPTL9xE9Vsf.NYODxbdJcf.fkll30a7QZCSMsQ2FFDAvLjZemlli.iUSXVVDA4bSzeRUrqpNpO0DtHaoBBGjZ.o6YCf02FbtJwB4f4LBIc",mdrd: "W34jeOoZ5ZM4OG38BbrTMYxcWRx0.GEfcnSEuspNp3M-1739163317-1.2.1.1-tdEDnndu6GB6.DCA6ArpmAx3xT_N2bnyolObTOQQ1DfsniL3PCZ6SWyx5CnEF9DvPv9EDjjywxnobB4BpY.TBkPLqnrbiVy_tbSj09fVnf0bsSbu87IprxJpIDcKI2E9VpgoeMwcRz8N_iN3B2YWlv92vnEjg92HYuk2DTOpwXWPohYcNNyIsWV5BOpy05Sbj4.aTlTCdf0YGpm1SfpfH0PuB4B1zw8EhT7Gtti_vkadiT0Eh7hRo86KJOlhuyiqFJq71iFqyMPQemAyD7c93IYG7Y1x3M0BUeLekSVLn1xOmyGh5zOiNjcFoVO5rb41yKrXr0VYjU70R65Il_AL0INkwG1ewHhLJ8nhVKNd9cmdqU178HFUGDzhI7vDqP3eQ9yMsd8iB14o7oLCsR5IoPtQB57qznoWxQS_Qb0fGOFzGQwKrTaRgF751E0QeZuED4FOQijOD8E9Vf0uMCqPMOsolvrXn_BFapyPB5VebzhPELcljfudf93Lkh6aKXYWm4JgB0U9jUVCRmJLNTqzIQnEGGJaDfW_OUSUWWvzHayk6sEjcOVxRmrkckF9E8W2.isQlo7STj_DZlVWwHcuoe9HCHi95jFgOnVihk9Q7BuMjSjqKn6x0bqbv6Cxz3PYEOsMLSuc1SO6j.OEnQYuT850rep_EEQpEao_Uo4u.JNJyubfkuj.ca542pRckaUgOCVnFYlts.dlFkKwUK5D8KGXSDuHul7XLfOxXynOc9u4RdiDxa0b7kJ2VKKD8Vj0HW05jEWo_b7JapmK_CcmQ5.fG9XNf_j15lERKgPASF4CAZi3MMJa13Mu.ODR83aOCOOUj9cX182bqL4CPfqPAOr8G_RCvTmh7ygNKsIuhfp1KCw5e.S2s.7rwBf9340Q34bgVtTm5qkS_Q08HN03lIig.fjA4W.FLSDoUceo5eofM_47WDA_7NXYQaZ9bG3yp2DYzc86bIpT5sN1M6_u5N4DX0wACBn.ngGb6vLEIIMYoDJlTG7qt0blPWsKejXhmypfP11wC0sxJODw3S2PbU93bY2t2SJufwFaQ2m0q4zdatOTbib_pova91U0KZcyadLqkEQzr6iIDTEml_xO5aKKCPJ8eCIWHyHN5Wz_zrD.nTdtmjZWomxBE9.Z7TlSYQzDIJrSJnLeg6V6Vcg8vCtkviKhoRVQ1fMfUYpW9MzRNLf_RdQLEuyv1STugrSt1z_xMEgdv4MJKnEWQ7Dy46Uat3YiVrasEl7LhNRSRQ7FfwWDRrZujxNgIg25OA.biyz_kkC83B3C4G2xtn6VYcjk3IIavZav0OA6qzUCzIC7ohbQUn0515y83MPuwrfOwGyYU5eUJRKUV.PAe_hZx_zLde7pgAX8vrWL3Zl7vIurkIWxbc1P6ltqgUmjR26Ao3U7a2BpI.iyYlR7_MV45WnORqbY1TAptB0NVsEvtrL5LiAJ7FxNAYyBWxSTLJ2oLaJZP_J6VAKmJfgsC8P8BYKXHEpfcDxYETBNfu3aqyjwKz7GTnHPW7P85.LSlhN4sh9n_EFlM52z84ozQiqAAzF5EIV4XObFpOixykzTmPFrIH8mn549W2uyv5KFBdfqwD3zLi6UjarBfz8cZ.4NfeqkAPucbrrIddmtNfCXNdyyTDQZaAVhnHFlIhDN6HhcOL1VOgw6oraI3xU250u4EzuUgccLdth8s3oO4n5Xs_CSZdttJxrY2Zv1ubXsCuDueoUCQ3P16taRNy1KkzRWA_vomCtZEdWwEx_WdAvS7ZE"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f9818ba8c1c995';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\/8206954173?__cf_chl_rt_tk=SgJDZGRuKxh4smAm5KHWQ_BkCvQyH6dqWKqgSicPCE0-1739163317-1.0.1.1-L1sYcLH8ainrgeJC2jHy6QxbS8B8NqgscSZUh1k6ShU" + 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