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://621896.mit-edu.top/post/6027549381

  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: "621896.mit-edu.top",cType: 'managed',cRay: '90f35dd73db95b16',cH: '.opyf80BzHqy0I5nenSnw.p0h2NI6pNpw5jUr0rKNu8-1739098940-1.2.1.1-tTax2FPphQlaaKLiG8sODPjoLMNx8kcHhCDZWS0mEXIxiAxF25ZnDibIaPEiYbTc',cUPMDTk: "\/post\/6027549381?__cf_chl_tk=RFjG7Kl8CoQNEUBueAZUdF2kHsYoDWrAcWQVYDbnae8-1739098940-1.0.1.1-quUxfxsj3fKWcwsf.KwQgrCfIp8DyRMgc0h2k4FZP5s",cFPWv: 'g',cITimeS: '1739098940',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/6027549381?__cf_chl_f_tk=RFjG7Kl8CoQNEUBueAZUdF2kHsYoDWrAcWQVYDbnae8-1739098940-1.0.1.1-quUxfxsj3fKWcwsf.KwQgrCfIp8DyRMgc0h2k4FZP5s",md: "xVmiqwKs_f5Dl86gNX2szonXjmmhTEyPWEnlbA._eVo-1739098940-1.2.1.1-j.jYzstZXnnez4VZlzZUo9P9A20IAU4IsLHsB3q1AAWoIwRTfatO4rLEkHJOD5q.XvVZ7izAfdHZ716nFw2mUeOz1ue2LKYwWBD0e6r.lUPS9qqfg8hKPeWd94_ZxBmTjO_N5lgM2QYoYwa7KDIcZa5oc.L3A4UrcmA9nN10XVPoAuNMzFAan4KNTnAJZS4CpjwCA09Inat8FU_hIeCMPnjSivVn8CZcPlxnfz65wwSylpIUsv19dF.oTlvKlDW.4Cj.3.v.OatmsTLctIG1hjHn_4XD0YwRL5FsiMtNHLFEro57ZbzMSLlcO3SlflkkoNJVluJbr7.iCBo0ZObQ6VZHy70VEffQJzHKeIwGCEUZNYxvuruXOEPl65t7wWhmwIGysQ3lzynW77K2aahQncgMCjM6fbWh29ZAOERwVVXMeiNzPG0A4q1Dx6ht7og6LUJM.w3FVHKAptjmigFQ6_uelQ1_GFoDC0R1gqm5bm0MKrZ98I3GM8cZTFwBPqGQ6ONqfvg1O0skwLvYCvbchoTpOL1a0.9nT3Q1EX3fp6IK.qvqrB_UsMht8cFWoXbAGPETU5dhkqPFLnsEd1nmGydt9iGZ1c_8ABEWPiEKYgRie18uGvRzUQuDQaExLLFBZE9ZAjx8ZJ8aMyhQgiZB6LISJvYnFa0n6yU6rctFc7m6W_ymqVMOSDZtSBoDG7mt06dsR5Z3xhK4AJvUngXTKo7g0eXCSI0XlH2_SA5YA9oJHpRlY8ay7c7UdUeQg4VXTdNNgA3DYmLuLcpIt7z_vmXxG_88xAIG9BcgrxnTcEBB2XIDVoq1_wOXaRUemGHj_0qNWXxkdedtLRa2lQRN1uRgMR1OK6tCIxGn6AXdMYJmI0Pmngo7.bcm7YugmBPsKRo8UIXzUO.dsDNKoC2ni73.FCpK.kRFFvZNQ.I1qo5W6D3n.AvHPtSte1u0R7tbnWewQum.0GSfxylmAj46YxWMpv1_aqT2Gq9VVLanALnc0Xl5oLX8T7tJ8Z4a1xvFTfQSjJKxQp5kUd7WEbnXnBLk8swew3FApom9IdFmbW..jJZlmbqieDxa3m4u5QdKuPe3Qf5Nly568UXYhpx4HUND0SXNBHNdg43ThRFTO2rG6WCwmlOznMGVzOi5Vx0I.66lEYCctRPoKzkcOzOrNk3X1ofdpGZV30tfuMYiy8TY.mVHdqrIjeeWK78PncRDIUiftQndFg67XNLirVFy6xTQiNPSHLayfDB5bL3V8sJrGkpmvkF9jjdW5Iapno1Vo8Xs9PLBKPdo6QVd0GZ5Zk89TWIavbsfeqDp4hdKdUa4t5IoqzflWNTAL4ZJQJy6Q1vU_CTFmQtjx19o0GPySmS_KcVX1RFx1L2YGHS2g.Rdl8XiYo6JDwRcxNzoWH8APN2FEmNvSt9xU6XPIo0F18KZkLOIWShD6M.KWakBiVWROfrM38FOyRG7jnECE8AciiZctx736I_q05sCubVxDtcxJl71X4v4SI5W2JFYv_5iA.gPKxtSMV9ZR9VLOHl1sfMjPNrq4dr0OPmOnVZ0DQGb.LQX5xyS1RPai5MxEjj6xgSE5q6alpx.Rs2meaMHOtq5WOLms4llhltLfPbjrzulvMAxkSiC2zb5AWzXOESbZjIq.nVUBupYbqV75bEIcI5Azyw0MKzD4GBRWoSmzxAMaNZFsQeYDwvb4ZFKwjUpsgkdnhqAv08lIPvUbj7bef79ufABZJsogHX6KVfryK8KICRvhxOS4zI8zsJQ8yr0DtWQGOruCXy3.RidVVmTuZH_hYqHepb9FgWZO1Cn8lkdLThy2.UtS58UZEl1BJQywfwSnPwz_e8s5rZ6_YB0WC0gmfDTEvgloLE5.O6cHWqqrmFPTp4PPjtit4Q2NGDecmfHGpHbJ8HTCUa935Ppv4t.e3HMFdLUS3SYWoR7NzVQ0joPxY4nuMmPODiK6w2m5fh_R48ioZ9_u_qHBbabjxF7_0YzP2pSE8Sp0a6q.YkBcmzggAyE0_aRGdUsyWMwdeCeX2Mva8aBkrby1BgVlASrc0SPhVsbZqhIVLNZcfVKXkJQqvnFnpyAxPuYCgpwKJjyD8.CDfLy.p8Qa2aruQNhpGEiGT63Ro.rLSxz_cZupCIdUpMx8S_LrcmOEX8HDQOBSUgzUt47W_hih32sAQQ1dXGq_WwkH57yBbcXBw0dYYbseZgIzLFnjjRKhUg",mdrd: "xCJB948LpVZV6fPYo.ekr.u6MaSaALziGFkFBle65Ko-1739098940-1.2.1.1-a8RlYV2mYCG1qunEL4OJqadoC2tJ2RzaU0sYzBGOjfFYy_rFkdz.KOvLlHd6T5L7wGXqPOcSq_SW5_aBlkDeHW2FDx5SZXQh.8PhZbnlCmd1gYT9ywhzvj5YIUzDmP.h46SLIoWcXFpInKdQbnYSnfeKDDPlXM1aSP3f11hK3EgpKMeTyNkqd.1KvavPG2fMizijwqoDAI5g1rUwxQx34qzaqXQ3jKFpBh4oivUBlbNComq67Xaq8XA.KRXGvo3nv40ZNopUl4AuLKG9mdRgxHu6wJLs8IUXB8_8d0AFRMtTJYw8d55zfVveWvJpGvXHoVgHibBeTVDUPB9aQEFaa4xGWhY_7lZo1UsEuqrDhRRiPMLSAlkYGcSIqCTwi9WmNcMZtJq.7lfue5bxTLGmizelWoUO74yK9MVqHdjpV_lgiY9HSdofYT8jizwQPwDvw3Ty81SqLdoDgPlvT3XIQxEYaHqYoPKzVE9rW3aRKKHnjrDzh5cryZaaMB1U5hCcPzBrFl9Ka4E6c7OVMy9crbrAiWu2nr3DkAty15S3rT.NX8Plx3iTFBTX5YFfaS1RV1VVQwkhkS3WkEFSQzuZPXLFAKqQXS6fIduJ6RnC.22kDDZpz35GibAlqcpezkfCn2RBpJjyP77agYmqZ5Hd3p7NqUFPIYeOi9nl0mDfoC3iyb.5tJh5y4iOXzu9Lght62KRPtqMlO.wj6Z0rUtHc7wtwfrAWWk2WCVPSjn_z6rCeKsrQLMLl3E1iwKREnIJRk3.wRF6vXKZ51HPEdpdPBbe0ki5MXn_JjS0ThcrO0lIqewu1HaAGXEtWk132uEgFtbfupRt_uR31NdkMSrMBvwSvmwa_4RGfyxq6cNLUbmLiE9Nx1oWdCXhR4PT8jn3u0L8efaqaTcv2Q_YDMXUkjP5yx6aUvnZUIWB.6_DntWxsLGStdnvZSyAJ2vPywbqrU9lVaG9zW0LDwDG5znbVup.9dx7p7pLM5vHrSPBVbL1vY3RRC7a7cFzrHHw0ggjq.OD5L9AxNvgGfT.kk_slSxd4.9ZxtF0ej5iWSDCBaEpbZL4GhAgwnjzFJWVjppvkUdoNlL_8yTrBn7737m0MlnzIfQVNS_btRElvcE33d6C9kWC0bG9wPunlSWUmmOdf4tI8ppEOvLp1ClLVlumCQKmA6VcoNwOwRCDv01rR43dQYYlKmsx7Bwa22onMYVH9nVudQRHTZiHdJh4yGBcTKRbAzxr51gpXpxYyc7e8htVlgI898CdKG6SxFsPJ9a5Imi5y68jPxHs2nkRf4I3jMYhgsZdJ7RiTVpQh_Ms7u2TlSx1vc1XM_hSWP.PxyiEzIRzejLw5ETJBSmi5X5DEIZthD7ivAhSlqVqH0ZFUKHmlNxz8lw2bWrWtxiPZh6WlwrU38pmbmKofgXHj5ixD9.aYih4vfXgA8fYuhYa97jPNQbrFXRs7Lk.lwZfhc79cVHkUuhyZJ8I4q9e5YFpI9LM1EuNZjZDnnoG0EMInNqorXS6lFK8j_Oo_GHcQk2U5obk_VrkpjvGRQcgDtvYESb_0TqVq_9iNPEuNyFH1p6bmwJPLuZIDl6FPO8cmEGQ7K4NouLJOVuCWlHiSzxzEQ0pLoLSSIoT.7kX47Zc6YJm3XCTG2OqpbOKduEpo1Ud2IceVg7l14_vg6cmQ3H5uttuXQfAEws2ACy58uaeV5x9kBmd1QaYcetCkQvwEhSuYDviutXcRh.I3ROckWnyAGH4Rla9FCK32JFjY5mINaGE_cJ6J1za.tE4JuTtOS1aya8SzQbQxcc8oJ2efU8eIg"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f35dd73db95b16';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\/6027549381?__cf_chl_rt_tk=RFjG7Kl8CoQNEUBueAZUdF2kHsYoDWrAcWQVYDbnae8-1739098940-1.0.1.1-quUxfxsj3fKWcwsf.KwQgrCfIp8DyRMgc0h2k4FZP5s" + 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