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-437074817477.mit-edu.top/post/6257183094

  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-437074817477.mit-edu.top",cType: 'managed',cRay: '90f6682b9a61d6e1',cH: 'EGn6VERBt73n0KkWDT87oRxpA_bZIw_u8fu70T.R_kA-1739130820-1.2.1.1-2X_1rVt4ebraQ04.5swoAyb1Seq0TmHXMOi2OW.cdHsKFe6PoAG7HiOMMl7CUqHd',cUPMDTk: "\/post\/6257183094?__cf_chl_tk=37Jzc3OtLLdXdfEBjJvsYkS87ruvMrb1cl972vZCaic-1739130820-1.0.1.1-m9KcMgbTC3zt.kLlInn1E6A7gkWrRXuolorUMS5WLMw",cFPWv: 'g',cITimeS: '1739130820',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/6257183094?__cf_chl_f_tk=37Jzc3OtLLdXdfEBjJvsYkS87ruvMrb1cl972vZCaic-1739130820-1.0.1.1-m9KcMgbTC3zt.kLlInn1E6A7gkWrRXuolorUMS5WLMw",md: "mZV6o_.zAAP4_XgQjYoKf0qDTC4WVpfhP33qpKf4R6U-1739130820-1.2.1.1-oiqRByK1.P0G81h_wETYqkn.ywIy7pc3x5sGWL7IhD.CcYU3sJxjTJKwsxeXRtoblCHxerOc3zZ.rnBTsA.df5uX9JK4SUdLfXX0kWSSIH5QYC032VirmRIZs0uWSQLiyf.XlTs8N.seYV_My_PnVlAsHPq8y0W79AAdHa.4adogd8SHPRBp2Z2opvHRJV8jqwV0sM5zlpi1NiM86VButtcU6PKEBkjz.Ju43yA3ScjvVCTbh5.IwmTIm0zEXDE6G4qCSsUV.GhuzkcIdAU2NzVUsJ_CdA.hf7C.JDCo8sa.aMfUCZbIQQQZC628WqxfRNV8VOS.yGsmpFebbvI2OkeQhNfSoJpaoHh3VQSLrCWvfpBmxUwBBCzbkO5W5_DpLZgCYGuek6_PesnZ6H1TJHEvskWZl94jj0aC4Vj8HrFNtef08MK67CirqBCmID66869dTGw7i.oKucq6FF15jSKz1wYB_2r2.qVgoCPCaBWoBRN507pff7MjUO_BAWZnElWuxLn9lxEyi.WbdYjQQE_PjF04P8rC_vTIdaUH629DGBxbJ1pBvImdXpPH6vfD7Mr89lAIdaPOAYnnUUrVqvw1GQe28PwanJ4losDXPgygUYo8bg5cFf2WkTdQxY7rxwwk0MKhSgbJVqa48nc9L9qpYW5VN0DZjlHHxzikopkE5M5mat3xG2I7.gSYgi.3rh_JUvHDgzkOXYaq5ytXBEb2s.td4UWdWvxMckpIKaIznSGYWp8f2QR8NtcEnoL0M8F7jws4hwngNRy24oIkfwzJUfwYhehlBHsGPfNSPbo6Yn26N9EQ3EK0rddPgAppyloDXJFpGH5eWYty80B5hJhi2T9BhvicyDMGPkyW5P2R7VckQKmC4z_GObzGDY5QnCbnEz._iX_Lf.z9gasMkQLMjYj5zXtCyIpnUAA90Siub9iGVG0AiArLE14dHuqpsdTx84xmQfCjbb0alAk1Q9ioqgNH9RLBk7dCwfwihr3OZv7dv8eLcpMVKgRBTjytmU8UKkmNjH0QPvjqug3O6m0WHwXkRanzLY0SXEkZBMNTMkKARl.KYQx52pumd7iO.iEc6HAvv1r9LhQr5g3aMOIMtwxdZBQ12itovfZ4cvNb5e8YiU4Wj7Fw4Lhri4.5w8qY2iZ6brlOoax.fKwmSIA1fHS9Yy8QibPLl4hsUAEPbWcARyqKk9l8BGQenujWBHN0.cr33NNxui1Gba6ZCCjjkMQZ0GnBWOGh6UtxqzCfcvwW.GBkLyECGQRB7RWzSTjGMWIgy9TpIp46sISZDCObhpSVF12UDFiMEuVsLoDkkDlOQZDtFl9FJ1_jsUxzWpaduQqBrmYoBBhuJ8qaF8aw1ZiWr1naJ1jlfhuRXzlQBjgi0aOXfxcwgBO1dHyMp9._9dLiHN34nhiOpcF.ziq3jDx0TNo_3LloSG4v5SoCgni5V0rDG7Jo6y.oThfL5382GWWDEF988ujucxPQ962ftYX9PKibD.aYpuGJ7ngj3IbwMbNaHecMzpJiRdL8QnPBnkVBeI4T_nAhv37Y4FSrAmo_zY8V9vaFgvnZq8OkMaSFzmptfQ021YG0LDAGHE5fwbDI47nZn5pwyzRh0lRXTWjDrQECjaHOcMkMlImkVCOcoAr5rvwYBavCeRjCXIozGix7AvjXls8UjmQaeLWaDEOPuavVFJha07VpHnpumSJiOtbHNN7BnrDPA1OvHlBqWG7o_zucXpV8BfbvvkuXfRHO3_PpnEnBazZdN0ipvPut_eUlFfYLjoWR1akJagEdVeTvY_idwcjTgqMSF1WKkhm.XBZQ9CQHwF6p045YAK5vflpkWjsBDfyjyFrZCvPtDUraRo1KH5FzfEuuFxeA0GhjYTO2erFxceR.BryyFse5bvW.j2PxxDxiRKfqb5X5JhwUasKvXt5vC8JE_mhYV0KMVoqXkCnCJc7ipP5yVLHi77VnOhZ55ahmuaOc7Plwb.g0ENeihMLCsAS5RAXCVkBkUj_sa2NViMC2z2W7RjU2XYXZbkZdMmPRf.osx484Yn2oY3Up12fB0pwk6Yt4b5Wl33ptj_rA6wC4DSiDZwFtUgy3vskf0.wj8i1PscaxIo8hNAOzmAImU8BJmQpX_zVh3BgVhiPsvHoOv6Bo3IjcheZ.Je4qi76mFIQYWWiV5lf.hZQzpcg6.akPz5SeIIREjTYpb7o00nJ6rUSJffnLOzlYBRkGqnhnb45m",mdrd: "ZB2lpZwXvrfIiAK3tvr1mJcbX5dPC9LRSliXxePI.XU-1739130820-1.2.1.1-s50L3or_opjdBGfdWSHfhPPy2zIY4bf4rIh6n._Trv.ZYiLBJKRflr2nVc5bxX73Fd3MJsqKPo2IMEVDj7dWMVcg9ku_nnRGJuG2FchgZoo_uchVAOa0yhqNPstUu6lIiPdAaPTBz3MoiVCvi6nCjKgPCSmJdPT8tEa8MYzc6hsdF_OzNDpXP24S9DvsFHgEmaxg7c0kSjiCTxTbRTb_bws.bDr.20RjwiveYAjR_uYiNbFclg36woNYvzRnHEBd9bhpXuk1nXTPJ4UjNDDnRrwckYcGcRrQBpDqgoMXLzE0W9F.UGQLsoXlrJSxDyf_Sv0wATF7lpfzPbHOkd7eXhxYCJTg85FVgi5oUbM5fZ3t3APvv3gtPe7.tjITZ525VMwSy0gZexG8CZ1MLWcz_xGrLMP.TlDviVD3ojrB9OfMH8cg6It721FMdnTtF4vjjf.N3SfmeiycQwy0JhA0dpN1IRaeXDSEJQmw4gb0h28IAd8eIrmaZyliBqpJJX2.u4yivXVc1uMYlAhDBVMjMR0JokUgebbChr_hsE73rj0sYJEtQDDqM9Lqma50XIwleSgl_oFFZaY4oj4GtejL4sH9fp0slm.M56ILt8uWjllnCn3TzW9SAaQ.yOxL9LqHOxmHRiB1iJn9gRtAmf6TEHHgYYIxfXGTHaV2CO4BfWF5f72EUtQXWNhIOQCwnynA4q0gPtri2wd8oHaEXbJpSytg0usol9aQzefaezIrajaWW41_KSnXSGB7ktGRpscCZXVNUalscD10tbiPxOYZSui2lzGxmWjvYfVoSZ1VjkqBwFhbwiWGlabne85WRWP73V4kzUxO38aqM7w5M50L5FlVVUo4H43sA0nxo6K6NnrRnsAvwdBJe8tKa5HwSEWbMNIFff4vav92d2BbHr4TUgVrrqbmP.SQZ2VntrYwGl4_wGniJgWfuQ5z4DmAf0n4iPSU5NDPX47dlLl9Ky724VF2sSE75A5KWA1xY8tH9aVK_GFUlgucdKuWkwrRr_vTn7oCEgwmXMFPaZJFFPxk66yZ6Mq1t4HcYebtWj7qDLgmIskjEO_XM3bECvLBvep.cpblDGpdJES64gpVS20l8IxTPztr6mJuKPScxK1gi2hNmAboSzw50TROMKMvWXad6mBhDbLj6oHbPiCjF7e2J9eGtP72OriotRKmtQnJa38TV3kUPnIejMNrmHjJePwSJ6JTcpMXf.OZFxMNeIZ5ruDdFQabs0LMizOp2BGZVGA9yhNIpZZS_9_PcSoaDA8iiwUH5qnCsvKpibCwYqvFkCj9_RLC6XlhFkUnSwmIzOgZeKwvJHvhj0f4Dr2DaKesZ.MYv5IwVe1YrGiTgIIvcbu9XBapncXqvibVLSACOpViYI4JQMfP3BDZ8kARpOo8jEpt67aDvhcK8tfldJzKOGvwB8ru1S4X7CIGOIUC5ed9pTOxptUH7cX52upuniFdCLEJzdkYT9g4Qu52P9LMOym4t_pyVEO9XboI4Z92oInIo2h8iSLrGXGmOzciZy8kGCH2WLsnYIkUN9gXLmgiZNM7fGjr3hthcMX9xniLMIeBWQYifVPsActL7C7jyvIT2A1D7VyutVmwwvbXpibGAbxzS3T254WUADbILm9dmRALq8zdHu4Twp_Fh7.3zA4s2RkHas9tY.1QMq7HdfaQoF7srqUz79Rt6YZiC5s6EaMKqSCLrTbMbZq2MBlikPyIHEUoTdpyQB4.pBZC_eLhKSE6Pvx3sydahT5orPKq.H7_NsMOfyk80Vj9PNj7QovzIeiPcQpxzZGEGaI07TIVSQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f6682b9a61d6e1';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\/6257183094?__cf_chl_rt_tk=37Jzc3OtLLdXdfEBjJvsYkS87ruvMrb1cl972vZCaic-1739130820-1.0.1.1-m9KcMgbTC3zt.kLlInn1E6A7gkWrRXuolorUMS5WLMw" + 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