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-afftbj0pn.mit-edu.top/post/2305194867

  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-afftbj0pn.mit-edu.top",cType: 'managed',cRay: '90f7cdbd7e218009',cH: 'KoXycb1oqq2k_dLD5yCiZxYP359T5lRPqVIWIpsdfOw-1739145466-1.2.1.1-RzNAjASzz3adqYPCo.9CkfaUt2Ad.nG1905V.ZJoa0_SI0YS_wTfXqwFzopRbhPf',cUPMDTk: "\/post\/2305194867?__cf_chl_tk=c.6eSNkMwy7aPaQSjdC.eumNLXaxtfO.bPWVHFaZcD4-1739145466-1.0.1.1-iKPN7SQgKANaVqohGygSEtxun2HRx1bU.H7uD0isxc8",cFPWv: 'g',cITimeS: '1739145466',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/2305194867?__cf_chl_f_tk=c.6eSNkMwy7aPaQSjdC.eumNLXaxtfO.bPWVHFaZcD4-1739145466-1.0.1.1-iKPN7SQgKANaVqohGygSEtxun2HRx1bU.H7uD0isxc8",md: "RJzn8g6dfPA1EKDaBtOoX3Hytv4ctoI2FBxF.IIad0Q-1739145466-1.2.1.1-_N.e06gCDzvXJZtL99URhl..xGtrmoMNpegL1rE1p85ntPAnZfGqNsFncZoXy_m7RBNFl2CWJvimp2IO3J1HnWsBDRO9Ws_jCeyrR8MxPPJaiMN1UbaRSIk3LPmGSt.eMjenhLCBYAyOs_0H0L9A81i_GEaqUU8zaN6GAwsKbqB1mF0cRsLXOjuG8BHA_k4rRtDTLFTw7IzKH4eUdBZmL3tO0LS_57ibS38WfIP0zioyzLCN4fn_UZGIYNt_Ysn4it65ZinpKZaCB3N1uKafDvf6fb2xMIIFqwpRshvGW.0N9eEuV4I791_9KAQxw6un0FXlVA2txkB3nLdn7LSDbSKzCymZ8JyEwlQSO.TC5__jTbLG3CP4nwbUKSlUe0DfRWoyr4QD5ORlGVyRTK4dVGEDZKnU4cvqFVYZ68ZVII4ixe9PExnPcaRVQqQjNGOanqWmX3VtuiuZx3TH8TCy1WJxGh_AuBBrUiskIpMCbZTL05rpnW5ZXwz1l9kFHrOAyN2mkQZZV2XSdpdr27S1r4DuUQ7YZ3EnCvggfQLcnil7CJJvxmOslG9zaSTd7Uef7DehEKpiTqio8QiNzdRuhKv6je9b1406AOXkghW0XlGeAnZ37SKQI12MwuTsOTFvtruPlKqjp3UyN0xmRaO3NcoNK2HXMqNfOJFOOR4EasuohkI7RR_pisXHXosk9ZwuMlFOC9QgyRN9w0N5LY3PJx6rEaGar64XI0AJ15SY9FgzHmMxbDdVxE0M4zYf3wpp2oQ3FEhMkLSItuGN40Vf0DgLR0mGrJsuor93ibzr4eHV1IPTSLvftOE383YcR8_4r8En8Z8iOLVGWnyCQMUeKovMSwKrwKRXkZfxF6r_Q_wdbHf8yhD9Ti1KoE7kCa8mUsiNjuhCVHn3cK6DOt0Oc_AKplAtiQSD3xukgH209E.c6iAPP4AUvX9vT7McPRuBbHm3REW0vy9c3ymLHUWMnugcAUXH1z01pihNrLFT_pHUbzYSuADVb5kSs5JDElrv7r_FIuTb8uVaHfYtyA6jinQsh_6EX7PqK6SR34mUDXMMd5T3Ndug34V_6gJDsOlK5PumiTOMlWpzjTygaY3THvNU6VNCFRg.2aklsyp6UN6qJuSew0RItU4l7O5sUfSvrXF.2whtfsiOpK9nrofChuQPXDSBzuNNQkcQ3xySTu7qkcLhKLHlYTVZOuZXc.rfl7PmlqqtyaLL_x9Y2Yj9LRSVku6XNNMA6KxZQWMoXBXYqozR6MPqBP1GbO2W6EUxKAFbkjWuEnIwpVkv_Q_oP5efAoKg_uWx4fDWAYb.gLzM.tycb.0BX7EtdOvNFfpvypx9rONWtQJpqXoQpEUhBYFlCxfIkc7wesDR_l1SSN8qFiQ2MXQkaRaghMTEp0KYwnQFi5gYjrD0rhagBV5FTiXkf5JW31ci6Ob3iUVLRIFzzXuVObQ07W16oFjpoBMuDd8v97NFuKJgHFI10I3RE8TBgpYBS0BGTGcwYu8_J.lqYh39xNgieC_N_K8mEm7Dm1Wp3DPYn_G3xf7g1_wiZKHStkQo1auAFCNSievnqgL4qFfTOoQxlgI9vv0R_y_3gOFXqwUTUFj88MzFhvODxEjJ_0s0rcDzj8JLhiPgHF2rX_efIe9InysRYyuIO6NK4hwO2xuPMpeDNx3brJVpCp.zxShTmKTPaizP8wdJDwmmfXjhBNJZXvuXjwGwgs9R4pyEBCYRboIfwsSYHtJ6GYk1b6t_ngBtq2UEu9vWq01oJ_TjEoFfsA8EiBzQGT2YjIBWLrzjf2sXwWs4nlhmHDPWOc63NugF2ZfYBax48KuIOQ4bejHdQHxLh1oBlSOHkfKomlVmw44JzWOfpxhIhIXidF8aHa6fgksSf.7yPxlZ2XRuYYsuukNRZprzYCoo6hm7k74XACuqwra_d6tL9JDLg4tTiy0hVRyQbMPm9qjqr_.f6zQA.nmhKRzk8F1FVeuKuBYeYHAzs9PAoIdPY86DNkilsg1_4me8Mwh15vNbcFF13GAzky_5JMs_80MdiL7FdCKmPFncXpyFH4z_4QVTZ3ASSXWxrtLZVQ55XtzZLse4B7VCr1w74wr2iqq9c6A56DcvcB16lVpomwyjp5MdCiL6o6Q99zqZQbyKT5IcFKhvf9z.8o.IVxwi0xfHaeCwj5eV07NDRaOnGG6yXKAGnbxWg1x4vdyRvCQBBEcH4yrG.XhD8NM2Lzp_ohRe",mdrd: "MOIS58kroQTLRy.0Fn7Qusa.Ma73nAX8aSucleFFh9E-1739145466-1.2.1.1-Wqf3ZaT7fP5q3sZPudOPU_byBmVbdbseORU.yCrykb8WMvNFZXlIJlLmE5Y5z3ftHpFQSm7F1A8PT9eDMylUdE2b970PGKr1jjaL4CA8QDeHMrf8Bu9xEQWaBVXs4x4joUYkCp76vaNV6tiEgb.DtbqiEb47Q6AqETTXfIVszTTiAo7UrAoKrxC5fwd11WaDklj2IQeijJnMFG1.9JoCiscQB5ud.qjgsLsCQC5uU63G_owFN6o7KTNL4twMXeJ7KvFN1tydz4agHSzkvBUxp4.uLnKk3Az.XBu5YChDgXvAf6yG7N_8zLpWZ4IYTp_iDzudUywX1L8EIL2Nm_nct3_56X2wbNtXeseEHCGIkVg01HRgr_WtqzhH4hevOQK3dNgPIBuZNTmUoyn6.uKciMKkOwGmV8P.jyWbO.P8F9ttLx.W0uW_EB_vVITSqBjmYXhT6DtDmvHfesMcQvi2.Rze7aC6sQUQpVM.eD72hciSBXGKKNmtSyphQz8JS33iACiZj3ws0PICdb3O8tIFCOz.6d1isf8icQ2BqrwFiw.i3cmkGK8f5NFKqyZDzX7YpPOMUtCnq5twEycZCjsjwxuKbOeKiA7N6Z1jFaNDaycSYlKE8oCcjtxBD7GrM9r5eN2LhtMfD8Q268CfQ_dH1CGbaOrNNpFXFhtqJrn0Zu3kmLXNpO_WG9KrW5NsmT9LmkgMDcO7fRyhREJ2MW7ilcrQUVUIVltgq.1XKKrl_P87XQ6Xkp1gwHa0luXZ2nFPh6GXSx4RKJMQfCMEr_q.ySy8yRJsWqfhtWp4pLKnSNzTpbriLQl_JGf_dlCEIJqPrd3ZCje1_Gf_zFK4F0iWkuxCTLWP.qamPS4aJ7NX8DZQ6.x.6L1vM9eQCxHgqQsXr.7WXdfm.gdON78PANCrjFhGnLTxWL.bUxGAGmdeO0GfBqHf9ufZwbLjQ1PYtL4dIr1GkI8hvqBxyxsi45R7K1L2t.4CBs_yKJzPkljhlbbHhI_0MPCkQn1UZQGqIfHDeyHXrKmV8yBpphgbZufjJkhR35wMDbDDR68AhWjDMRKKyj47Fd6wGAVRmIa78e4vSm4JVNLXX6yzqBMuee8W.OpKUB6KLsGHgzO7Lk2.isIqZ8.t6BUnl9alAWL6H4DGjpJPwhVfjYb6QhaGN8ERAgrThkA_m4_3rYjt2VHDHuuF7UoOktDWO9phJzOl503o1ACSesBIiucLRDJnqKhllr0BEeBjfzzeZQwLN3J9zSOrXw.ZNAWx2sXhLsYd4IAg1k6JQO9CIb0uW1YF0DHDGLojRfHcWw43JCyC7GHKVXHZK7TF89um6DyRH2wlmK4ir0GdoEXV0we3NlOtSA4Tty6c2rs7.ynMjaiWXwIe1B8Fkw570qQ2IUj4uZavX1fzflpZJKebZWnCkYHP2h6Z3E47HvlUNCFX972D70zYweaZhO07GKcs3ZVnm95sx4yqKxEhiiIJX.moqejr2MXoHp4KTuGt0tuSSqz6VRLmB4SDkVeCfqmn7f2wCsfrKUOaqt.xOjh6POP9_9LzwYMWLZBFYyoraLcbm3YRCWXl0AogDgQcGU69PVs0QayN5EXqynKk8sFgcQTe54cNO4kSkHSmdjrjwJft4igLbbqX7xFqRbptUPDUXrbFo.t.AiD_Wc9Ackd8leojVpiVgi2W4lOOIZitYtUq0vtjISw5fTAnt5Mt8issxXiLcVHOmIQKar5z2J2oAQzd.WpLCLFrDKcMTlqHdO00vGES1Sd9f6XemNjJKx.738XDtR1.G6sfZldwAtn2cLdYPw30zsiNk5ADiIu4oiQIkqx28bGvzR8"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f7cdbd7e218009';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\/2305194867?__cf_chl_rt_tk=c.6eSNkMwy7aPaQSjdC.eumNLXaxtfO.bPWVHFaZcD4-1739145466-1.0.1.1-iKPN7SQgKANaVqohGygSEtxun2HRx1bU.H7uD0isxc8" + 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