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://blog-217285681876.mit-edu.top/post/1785264930

  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: "blog-217285681876.mit-edu.top",cType: 'managed',cRay: '90f7cc55cca358cc',cH: 'D2LZBVH0NXO5FTNOw443QnBaartnrJsI5Ad955SzXcU-1739145408-1.2.1.1-ZvaDIAJYTZeWBQD6w1SlMNgU_HKTazDvCtI3ZqRIztDkQGB2ftLYl152pUohUfMu',cUPMDTk: "\/post\/1785264930?__cf_chl_tk=phjSQUFMInjqZsOtPQbMoIVJZ9YGBmHozmafW_nPOm8-1739145408-1.0.1.1-4IFbatQRsFlRi9mPMRcjvUOdAjnc_exKZDsRN9Si4O0",cFPWv: 'g',cITimeS: '1739145408',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1785264930?__cf_chl_f_tk=phjSQUFMInjqZsOtPQbMoIVJZ9YGBmHozmafW_nPOm8-1739145408-1.0.1.1-4IFbatQRsFlRi9mPMRcjvUOdAjnc_exKZDsRN9Si4O0",md: "7GFkAwF6dYJNbqiQolmRXlLfXcvpArG3fojEqB2ZsRE-1739145408-1.2.1.1-r6V3_B7Ol9rQCNIVOuLa0SpGgWQQ38cMC1.2dsmqAxV42QcpWrdPSWpuePPd2gu7QzyFOhPeARiGPUK2Q9Tz0H_gThnKQYMX4W4ShBQYM3r6l3kC2jDALVLcGlZymSkgbZ2WVrYbJp.31rILd7qDklKofwfs5MDHG8WPex6VXpXa8Az5I3CI9ooGlpR9d0LUcq_fsmB_ZzW7O0NKE_R.MlYJSDXFVYXB7I_H4vhk..rTrmWCxEieY5Lhv2JfUlllGy.0cVwdWzEjuiST0C8wknNoNXnV2fhuzB3J9szPs9.MrPT3HvwkFlgRue0xemVqWG3UmGAsHBueBF5jke8l10_OSO6.mMfklbwuhcdu_vthe_IiY76EbErgDWu4L.MJrzzJMKdRoqDqmNd.dndqexquVZgUFHkBp9E.hqjZ405nXQ3_K.PeVQn_21uc71sq5L7DsILBPTpA3ZXt1dbnghgiUNe9PbSg4vyF6MCmgQN5fDvotbo7dGfWbmOR_UMV3ZO6tsDyfofrLY0W7IJrJ_LumBk9mPkovoc_rzdHIG9TL4Hi5LX50FEgi5NvkPW7Av0w5vEwCKAmpZ1mS1BxTFSdLxev0ZreEMzuzhq7ZONKIzVIBaIOyX25wL_rmjswjTOJPzgHCwiXjlavHYNZgi7CWmJRVutN0r6huUUu9Gc0aleE.JKeM_aEwyG1Xz6gHjz.xkvA7i.R8QZLcvuRvvTFcyTIf9Tu8j3Fp9FYp4R6Ch9FmUGDpcGaK4Pku6EKF4hAQUdLgZlArbz_GA_XDgwzxB5914T4Mda4TdRHVR7CSVV2gpSmd7.8a9w5aBxQjCY_wmuE8XnEi.qGZ8I2CxF60G7KOlkAPiQutyhxVLweNyrMnYsjxl99Lbi6VVH2PV_Wmza.mFPmTLJPJfdRpTXIUxSjw7MFqHVG1wZ80XyF9P8hae1oYdyDht8SyQsYNf0aYhQ9H6wh_j844VTDpw90xx4IuzELdQ8s3dPgIFvs5UiYUkGkiiDKikUEZh_asGElqtNDPCuZjccddQKSPWsim3dk945ABgVoJQRKcP2zyrNzsD8sGkSUxxvMPKddEVv4Arnt0wDZ9KOQtV_cQJSnYDwEZHl.Af2WooMtc52yeLUByXmZ1ISQwbg8cPeudszGvJN1zvuLmQ5BrU2G6GPfsM_QP8uPSNxmNJId0DJyecJs1pa8J5tCNPER_o298x0JG08FIXKzzNsl08lDMQvXEHOjD4dl8IMbYrOUBLmgRCszWlyMi00TSecXnbDzxlJhS1Dg6DCVkDIJCAA4GpQirT6X_ro3lniDsbRCvphuDfMdSNzFMLoTi2._ntNJ9CjYvt031c4Pn4335lYLZCE.EpW364LSEBtf8irzze7O3SoU4cQAMD1q9yRkHSINxcEXfv_DBQWc6SIIfsRxDGa4R0PcysgjuWJd5R8jmm931Lvc4NgQfxS6ecO9F_EihhjcUwkweB0wz50_UYxGgVXDk4ylLI_SLzq55SeIMM80OWbXsFcKHPIcOGi42WWJtaVee7ku5AATqv1QcCGSz9QnDCnhGl27iJqauhKJr10gLedhoklgF2MI2IH13mdTNcRraby_6vhon2w43GN_A9zoTW9zQa4GVq7GvzsHcYvkPTzaAbhHM9D_HwBYDuT1683LnD89_wOByIt_xHfa8DV96jHGiuJ5.B1x1D.f3fDqiq8CNmpeakvln_fOe3VXyZYJUP8Fai8NX8v.dcP3oV354Wo7si2YH_cxtQjrIgdIwR0.APS4s3SbyoGD_DaFp3DIo6.NTbgeEXq.0pDuF3ebvTZNjFefYIsDvGajnVXQUatpAYtktroT8X75HvPBgMYse9idy0evZQfjoZS0VKmsciVz2S06GMVy3hIVsX4WiZ.NnWp7WCQ4XX0pich0z9H6rBdLtPQPjAMfayxD39.LdCAxAlDrwwB6dxZtBj0nAnBUJGPgXG_tW52eVUUwBGxYqj407spdbAkzGxnoUtg9wrTUaoYrN42HOOgnlxgPl9IDyHE3xjXsj3jKXFPF7IqrYLXxntgkt_Ft0JjfHgtp7SN6_6nVn8MALaY43HSxUVgZrH1IkYFct3NBWMYd71YH1zHHo6qI8gKZ2Vr1Gk1bjJeVLBMjhbhA.OTw2G8yYseo1vncQLRRI.VzJIuNP99OpKaoD3uKb9AAiVayzJtDBSjwoH_cWa8nwqV9Ykjv5jcgQKTFdjstZXu4UfH9",mdrd: "z3K.jsFI53H8abm4kC_rQiZGjn3SXFGuSaBf.lNKscQ-1739145408-1.2.1.1-g9PgI4fVYdZ_3nOr77NWjxCFDmrTB3tJOBlGKdxItgu1m672mf6vpC57OZKmku4S5mX1asxOjQTuQggjBNgQTEWiifT58EbHG_DndGcl0rgzp8mMq56GESb4Gj5tcBVG6osyuiukh8V210h43xQb5j57AlNsx5GqUKZ4cWEel6ZWWw2Ltq0s73R1nEdImpR0_pMx5CVRos0PqdhaiqGF54e8RGlyEfs3j._ApyB63qCrtWKJQuubaxyycDWEmDY55L4Fh3L7X9Zz_vwd47HriaYQmjMJtAcW_jPQjJQuCz75PJ7i6bj9GxcIqg1h9Xo9ZuLbvPmxktwjNsTUU3rYbHcdY7Q.ZpKThFzz7RdhHQAH8L5cttuwx0vb8IMbqaTG4WGOhCza9IyDWiwMklL0UNsnvk0fG_KSK5bQqHRKGtlgPLApdt5EJBoKzX.IzPj8PTYo2t_XXdFMaAND2nqrTlpRXOXLHn835i09xkbeeVTNnn6lE3XEtr598QaKw7q5Go9W6roLGfWaB19zK7Z_sqcX1dhpof5Zs2q7.mpbyPMoN9axNq9lQn9dENxe.iQHdQqDnPgX69sUQHvibJ_7_xolLHEywgujVrszrbWXtzcL5MK2.hQgdXnuTlFYf9t5qe3rLzY1IcdNKHNMv2GhtF_Ijaj5vSMDg8qf.IgRGx4ec2A9lejUyWBPRibUbYFg8g404vi.IWJrB8Q4xRPJScS1ILbemnnLDqHKelB4f9BpfFlb_L8DdTj3BMh3wdddEnV7hbPAq9AX3qitmkyU4EAxD5dkWcZSPP10RikdS5ec6Jnt1si2qidOZ86u6fkzlg9URk2rD2beR5h88p4ck0pgSgZq4WMRfQDbzCGhPrZewePjAXCCAQvdcv9vvB_to9rred3_fJO2ZCduwnLQKRnTi5J2yFldQe6pD1EynVnMpOWK51QVnnPAo.vyNOxnSskT68T3pv5rm34KqQmb26WDj6liM28NQqKVnJ3bLC5gf7hoYdMarCjsXHNT5iij2c8o0JNI7pUAMBh9arbH5vTPnCsEWoKVogY8PMSIi5l6ccEiWsHe5G5kQeZZzLloY6IsXAIGL15KLRxDLj2pbUcQ3Q4HO70.m7fibIRB8lQNgcx2RBuIwMc4JM3BA7oH0FUWDibOPu2HHomFAqhVpAQIq0vqOu.xkC7nnll53ZvZbfJ7tPq.WGCNUZFmVD.2yy0YP0_jmDHH9QK9ucycs40.ahKpDwhrEgVR7owPUHNkXsHJlEQu1ONvwpqhb1P4r2PhtU0JNDycDQRoc2cigrhodx67Qrl6RBTBbK8Y3u2EBEzjwtikyVaYuTRLyc9MSQbO58UxrfbUfMByG96T1fWneDr6rXty6pLEfP_uZ1Po25nG7Gl2FjOb.Xy6Yr53HUJZDOtNpbDApwr8MV37wnInqhf3sYm66juQW2K36.1wxDEySCKgC1z_EMECfnGZAAUqSKcj4Dwyv8.ahA7sCPFxC5C.XTeVxpZBoaHqFfidH5h8YyTjZj0bHZGIKSOdqzLpqQXYS1ToY157NG83OZrAnIVbQ7ZAfmszlI6z7oDee.2WGWE0nYaucTC1lFtUTN.gk99HaPQFrw3adeyBhhoDUi.KQ7RKph1B3L0vY4Oz_WkiXZ.QlwdHsemO_nlshmEen9NE54N0cz0xiFQ2C.vAJKrxOXzYvJ.rgAoTjx3QSMIm88v6YiEKCFyTIlbrWct8NY9O2xQSWFCCzxnFTRvrrDTOW9f7PDYjWgUlNjNcbguFEmialcBoRoUEkLDZNKoOOJ6YVIw_WouUrqTlitZtZpLBSS_uyr4nM.zCcY8"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f7cc55cca358cc';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\/1785264930?__cf_chl_rt_tk=phjSQUFMInjqZsOtPQbMoIVJZ9YGBmHozmafW_nPOm8-1739145408-1.0.1.1-4IFbatQRsFlRi9mPMRcjvUOdAjnc_exKZDsRN9Si4O0" + 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