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-558859352447.mit-edu.top/post/5293786410

  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-558859352447.mit-edu.top",cType: 'managed',cRay: '90fcbcc26ffc9c73',cH: 'aIwg9fTyb150sBeb1CKg.fwa4MQB23KeJ36sZcq2a70-1739197199-1.2.1.1-OdtIqLO0ghRq90MeLeiXBfhS4UmJ4BwVQg_9oS46yxxgJTl6c4OR6qxIpYSwu2eH',cUPMDTk: "\/post\/5293786410?__cf_chl_tk=2vB3T1Lipt0EUvYOYdloEfyM3BNzufqyjfCi6lWsg7A-1739197199-1.0.1.1-sXJ3MH56fOVXDjy6dPRp7J5BTIgjrowPJ4zvhRW0NnI",cFPWv: 'g',cITimeS: '1739197199',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/5293786410?__cf_chl_f_tk=2vB3T1Lipt0EUvYOYdloEfyM3BNzufqyjfCi6lWsg7A-1739197199-1.0.1.1-sXJ3MH56fOVXDjy6dPRp7J5BTIgjrowPJ4zvhRW0NnI",md: "LsVQ_y1XNxLEjSgAwxpFqvSbowEOSBboQ0la02VtEKA-1739197199-1.2.1.1-IIrHm6eJHbqWXgqL7iMVppNUSVb3fRwHaT2_2.8nMYaf64qkN.4QMEL0oGRQIOfzpcLHZJFph2vLZW423.6b_clvbCCSAPTx9ZRURG_efKzlLHmcdDUjDnWst8BxdQRdCEl6S9UmCZ4bstwPVhmF2JcjnmSNW2vHO_TR8BT8E0cH6VuJ9wVDV4MkfO5DCPkrdHuzhzTZ8c1gNFXgd9rwzn7Y6eHCjbtEdF1mVb7sTltC_3hIEzL_ENk74cMGyZ7aJuJDHJnUcGc8TVqUXqss6pQdYA7xUaxXe.zu206y0up4O6Ue0kdMQssg38qV1MrTsBxMLvEx3yO2H1IdlTTYJ_3aqw1i8O4lIdavA2vTb8DQnxv8twDy8Zyx3YPfGIAbLtyWXLNoubKqjNFWoXn9Y8qF12icDYZnxcCH_vr3bT6MWREZMFWG8nXy6ul6vFb8luKWVMzVa6V4yYhFl_tC.ZzYhmjqSwFwqZehnEw7C5ROgs.i5ehZDthE0zarF3WX8qvr6UhmIApFlndcpenHDiJFeV4pJs7yAHf_5zRbLpg__r7oHX8PaGMBWzOU8R6iCkBgvzyntmzbbJGYXksWzAWMRyicqZq_wr9Fp5Nn_7IiCcUNsdJ76vL6nP5pAlZDRYVyA3ubc68UFDvKxJeEmk6zWrRdxaadufHG8EqvYhYzYIzSnFM1KWXGyDZrLgws8GgEl0C4xzRINHUFp.qUqApBqnQVOGNp37I34SSKm3goUHGMG2vY6phzQtzBEwVKWnvUs8iehKGvgpQU3yXkIkuZAHyIBw3CuP9RM3wHxBOGuq1XVo5qWHrQ3UFMRYv8F6Qv5wbd4C9dAGgNdjFEL76ruu_J1eAYLTafHRkYDiEKAOk5EYjaPeYEpM.bl3_444QkXSO.9v75L5yUvA2vq5_lFtS4RDa9Ue6nNMIm1pLmPQgP4pNCDxX3TbtA9DRx3YpaIKRvbdeMSE.y4Cf76tr5amuuGceJrrYSuGo.OYdKHg4xo9jr_4_IgryryoEAoqgFtq9lfKW12ZnDXWGDsKabgoD9UVZyyI4GZF6XdAVo0h0.p68UQC9GA2UNXZWyKsc5gGKjd4iwZofobcWzIFN2PnhUTSmdsCBU7Nb3_fEyZEprrBrS2KIAHZwYct7PXS90jO7BMK2ec1rfBMMYvl9FHjnXbbR4DNXZtjZWQsWfVreO5Ejdc.fil8AVqdfEycTWsAm9AIbFtNzkjIdFsheKb3R5gtM1J20zSSaRHp8Bx86cRh_d41pet6ej3ry5eCf5ollgo2rxNRp9QI9SZZ8HUpOe8dBlDse3xElBX.hhP19WoFoqXM1P.LBO4vg7eC5wxbB6YPU1vhrcReHgK44N1NErHhaDklEP6m9vYA4D0VKl5av7q4FM9bQO9kJ7399S6mU8YfLmP_RA8NuoFkPYXGcdc66_B6funoLjzclFROzUQEBTt7JIwKxeY3sj_dBSlZ5zDs75Oza5erCxH_2EUS2bKjrPvhqPGASUCNH75C8lidZXpUWCW7l7TIQbIhitD_HzRtc0VoM8s1l29Ie54nwWQLYR_LiAft.sgaNeIetxk8xzWnAijTaPm7OE_akodjui7Cj8Azi0liXkDawJbsyEFnHlR50FsVU1GYUCGSGeOyrHWqvTbxM2ArJE.4FMTSnMwR7_4TL5p.26kFMUiuDVMSlMZI00FtJ2KYz0h_KUCPrEk4GfqYSjVt_7zqWFkNbZVkuvQJpQ69PKTuBE7BSLwIK2a7b9hxQhEcRgMLYsaJ8CHTgpjPUAuKVvN8INU_e5VjWOLkygY7O9S9RfmBKPPFaZzZ3e6XsEJyNWFppSSfdknCUQNg1yNLbanI54_Su3SLj7wEoZdwqk8bwGbCil1Et4pB3rgyw.PQyN8oQql9IL1iBCXRbv4mpnQK7YNHdhPS7b2opRzWkaqe5KYp.hNwhC9sUElfrjVsb.bUgbYk4AWk0eFtxEqDSauiQI5BEKUbwAtX4a6d.Lfn2B1QHlk3vUy8SP7yFyA9KNpfvvDNP4TONOEoAcTTUVCoL6FkLIIl9yMTanvIu.8JTq5IhVoK2f6R2YTPMliKJ43XZL05ToelL5Azg2wRRH9Mn93YAxIzxVuCQyMSp9iir88rh3jYTmXyV0zlJOZb9RohfnujUx9EGWxgyK_w2YSA67_Q_qDz23I6dLYnoJXx1wbNJgTYixGo_WESfeKd5Kz.E.uCXCgPhKBw_BtKdv",mdrd: "yHc1z0CA5cZ36YNN8J_cHo8sdwajCx5nrjvSUKRo3TM-1739197199-1.2.1.1-k31iSvgRoW94sDr1kXsa_MWQvjzQ8.hSOEOdb9Hshmk5.VHK2WAhI5jnizx7Qg7JxEGdFzWiy2q0krfIbHvQbzRhen2WqoZ7FQmJaLPGWxBlnwziL8ndl5nhNHaB5Qtngb7bEnYUYCRu8eQMABtlTXK3GYc76Kc7JKhy_hwk7SJSwU_Pn.eyT0vW6egGnZGFjvs1.U1Wu2rpJtiOPTSUbZCNMgavGTFhPuEswu2QCHliIh2IIdVt78hJ_wNq7JCTuBrvJecdlbo8LnJT4dR7eGBUYepbTXJ5prTKlaTfl98rtfu3h7zT6d4SfqYBQgm67k2hP3lmPOaBSC9TKfODDOLa602FCBct9CelKiMr3A_mh9jVwEzGzyscPnwNFmq05J4qMukEg5fF6lYxYIDfCR0Y0jX9cefilSzgZjtDW498V2W8l2g2fRcnsEOZBBPnWnHVB3afIe4NugbQVdM2I5cx.kVWhfr0kT8bdt15P1BaASD69znByGLST8CfDjTeODPEaOEHczoBJQdsPsssNwWCsdkbDr38n.T29ojbVGr1L9jhWb1nUWWe0nWMY_9uOyDvwlCrMoSodrD.C7BGCXs.94q9P917EzyOeeddrI9sNYoC1adTPOMdQ28mHVDVgH7Vze77slIg2v6hD4kljrUOE1Z50Vi5beFGpf7hz8kvhqC2ooUt5pWWCYRzuuo4dEpnXXY3XJRtBm8eG8OKVbwKn_I3s3uvZ44FiP_.cHGrb0swJIxbDWBYiibGK3HrX6UhCDf4jVIdXfWnTK3AK.MLNU6x3DX0460LO5Ratczs_QjgkpxnMbzyjAwY3mHaZMTJkpDyjHS8cAxwo4fGzANRoY58hnp9a8qWfdpnfiUrKqUu_t8vrCsPUL_xRwvDkroOtoYsKP09z5L_.vtBxYVT35YvK2lzjTjJ_ojKV2LstMiiy7rR5AlcP82UfihS1cnAsDRe3QUGVbubxDL2LIk9GS5UKH3PBqOAcyR5aybgX0pDcAdMD_9KbIiWQKeMO8DWVrVrtGEtQpwyvLVAdwmfCsdQujJXRoVac659OuNf8LwiYe3Wo6MuK0vrMbBJLf90tuoAEpf6CrPLWhWn1Qt5Fil0.qVOdJvbiouy9h70AykZy4SOx27mm.VFBxTjCz1rgH4dd7gzUpKWRcdh7QELU5b3ebxrOz1vBh97vNosQhvWWG8ZlpVijN_e5hEvRU5TUMR8dbCm9F6NCEDFhZ_bNq.60KUF8Lvsm6e2mTObr6.jTatEPR_Dxsn8zkPyjUUUEN6Vr6U2wek9oCC4g9vEFwrUQRw5g2nNt0W1ZTigxC57eF9SEfsgLhjxvff0yS7_8.u6hLFbrgF3kdZGTAqAUaR17nvaCXabxWvvZPc8ZM11H1a_J3GQC9afnu2H.Nysbkx5AH_rY3bJ2wLLvzUUvJMJTbPavB5uyPH0WSS73yc79wLeEx8v4vHz51T0HtGsMRGK_KlfvwNXLMdrlj2yo8jYrPKJP6E1TV8xo6Ge0GKnHihfx3p_ZPjK_jKVT3rjSB7e0ZDscM299W3gGklVKwwmTGykJ0dis7xT44ZMTfJvaf5P02pWzM7zG1KjazR5M0hIP3BmR4d.QnvoK6G7Njc4e.jDtdnHvkDf4dE_TYsirCUinFnky7EOtAfPw47ZVLO73gFOS082wRkatHAgAiH5ilvDUXCz.vqf.JosunkuRQxG1b_IdzCL4exCcW8KkM._q2hymg_kCDb4QF73tGDE5F6HvvCSg6NISgB_StRd8LR9Zqfrp1amu5rTXNpGBk2vZZH8wrh0Z6t_zxKgqaulRpqyWz8INZqNECY"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fcbcc26ffc9c73';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\/5293786410?__cf_chl_rt_tk=2vB3T1Lipt0EUvYOYdloEfyM3BNzufqyjfCi6lWsg7A-1739197199-1.0.1.1-sXJ3MH56fOVXDjy6dPRp7J5BTIgjrowPJ4zvhRW0NnI" + 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