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-afflrwcjn.mit-edu.top/post/1753280649

  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,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMiIgaGVpZ2h0PSIzMiIgZmlsbD0ibm9uZSI+PHBhdGggZmlsbD0iI0IyMEYwMyIgZD0iTTE2IDNhMTMgMTMgMCAxIDAgMTMgMTNBMTMuMDE1IDEzLjAxNSAwIDAgMCAxNiAzbTAgMjRhMTEgMTEgMCAxIDEgMTEtMTEgMTEuMDEgMTEuMDEgMCAwIDEtMTEgMTEiLz48cGF0aCBmaWxsPSIjQjIwRjAzIiBkPSJNMTcuMDM4IDE4LjYxNUgxNC44N0wxNC41NjMgOS41aDIuNzgzem0tMS4wODQgMS40MjdxLjY2IDAgMS4wNTcuMzg4LjQwNy4zODkuNDA3Ljk5NCAwIC41OTYtLjQwNy45ODQtLjM5Ny4zOS0xLjA1Ny4zODktLjY1IDAtMS4wNTYtLjM4OS0uMzk4LS4zODktLjM5OC0uOTg0IDAtLjU5Ny4zOTgtLjk4NS40MDYtLjM5NyAxLjA1Ni0uMzk3Ii8+PC9zdmc+);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-afflrwcjn.mit-edu.top",cType: 'managed',cRay: '90f6a350087e7fdc',cH: 'ygABD9D54sUFGYh0ZVDTi6zDEB8eD4gzwmNTYFLW5eQ-1739133242-1.2.1.1-G9widy4O9F51uOpviAnSR_BgMd49f.3fKgGcM5bj9_8JzZNoCyvGMi3hb1GFlCIV',cUPMDTk: "\/post\/1753280649?__cf_chl_tk=Alj.UZFMR8L.hZl8wh2vPaFfbbHBz3L_c8n5lC0MW7k-1739133242-1.0.1.1-xrkW5btB2MdWCMqncy0GUjBUQznCzO20CsyeQ.KRU_A",cFPWv: 'g',cITimeS: '1739133242',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1753280649?__cf_chl_f_tk=Alj.UZFMR8L.hZl8wh2vPaFfbbHBz3L_c8n5lC0MW7k-1739133242-1.0.1.1-xrkW5btB2MdWCMqncy0GUjBUQznCzO20CsyeQ.KRU_A",md: "90eT4QbX8uamw8r0pIVwF09vKpDLqAZeS_yIbgoc9YY-1739133242-1.2.1.1-foAlwUA21wlUYbXsdTOcR4smmT0k23qSgc3k9XPTN5x78LO5sUsIXolIz8C_PVxR7ea1gmWHWwuv.HyfSCzrorYrSL.dfhqode2PhK2VFw0LS6GoiyflpfT9WaaS_RoIFZ9aK74VZi9AIPAre5o5W.mSM_eJPu999O2kqh19CSB5eiZxrpDV.gZn.G8sRTTQizAUX04BM1g0pU9q0kK_Lp1JxKEjMszBBp4Jzl.hJd2M9UP6YJTjbMpNrCsn0fyhzoqdZwjZ_RqmqpvfenjtcfMAhhXHLsj8z3KYaAOUbTKoZntoiXyE_a628jui.Ubz0m_.jd4b0B_GrAO96fSnoFA0axxhdgYPL.P3sLUt0we33RMoT7ST5TwWodRYs9Ndm3FEGb2KXMJRqJ8xKMtBlk.vRT8RGAEhbsWU2qwP9_v81svKp4j3JAtgHdxvlPyY0hxmvNRwVwv01sh6ux1JB.QiRNf2Y_c3HuGuQlQAhBYNXOVdCxJWYAJShO0pKGzORfCIE_eCPe42JRyEjruybYXL1vmrjcwySqDUeLATgE8dUd6lY3fovYTw9qiZhnVsMYiKloMr3vxFf5E.xhVzVNAKYJIj4kCyBcS66OuYPbJwiBS7sOYNgU2DGZ4dvK8Uy3NOVwmaVGV_T8XsK1.4pyIHSsNPoy1uifmUm9Z_i0SuS.wWkg1_utK2pLQUTWP9sjQUYNeuoZMK1T6vhZ2h6N6pS7mJBf2vxdulBvbFjFOtd2_PyRHksmiUOAlz5TftPLijyaJj06.maN2gUjUsG.21QC7MdVnlyvaLMwjtHheW1cTLZtXDF5br4V1PVE.CbVy1XtrwjcK9dzjolN8a.vNtKYb.eqmZuLOIS3T.4AC6_PnEM9kQrZwbTLtu7s7wIFrg2uvEnksLVWEVon5KgZ.N2eGcjtIQjSdMxvDgBOAtcmRObiEifFKvhtcoWwY3E.sjd7BtlN4dniPXn199dlIrayuhBgPk8t1006OcKFt1CC_XWaeg7onN23Rmk.RlTkODhM4oEB2PsPvYWp5IfmDgw7kpM9vuINXkYPjdtRf3bJoP9neOzSvfQZnxBnkb1EBHdvPPp3BNvbSBpkLUErvtEGIqhx.I_kPyDsW3lUNgn.EmcufEDtb3tR5cAR_cFXceO1g0YoKADypD5YgKNG0xc_dw77.0Zg2CdVYvzOT1sZBwDx3ycl5I7IloCKRf2srWRW0BN_KRPJh.X4DyL7_mMwyfXTvSmRYCMt3Vh2Qhb.8pVkfs3yCUWrEdxz65Nsp0vM6snZxWknqqqTatg5Fe0xyP4mUYkyDhCOOhcBoi_e4KF572DwiKryyLz7Nbb3xlowFfLfzxifCYXZhzne7T.y1miahe3YOdZgLbfOvfPxIAw1dvbNIXRwZtGh7P_f3zcEOgryGwGloKirTMRx4XzeX_EuycMMIe5Cx8tTAhBZhgqzS3Z4dyQh.as3khmaim.zKlHeHACHuCJjOIdFmWKY2KFwB_2FDO.mTVyT_X0Bdixlohjyv08GtkqI8IdOOIqvPGfUanReVDYh9GRuJbQEvBz4uE8QONUhC0Peyl2mlaoMDlY5X86xCV6dNY._7v4gMvPGUJTnEup0otZsbzagQY1o4_N77CaP0OShw_6rRxblqEYmI47ZRl5N7k9nTDuvZpn_hougLpgnRV8RiAnqpL3c_9vMulFq46ZT.lkdhreirLisIpjP5NZrgDAS4OctegjSoWwDIEsoRF12WA2KSxCxoBQ5eyjFs5qWy0hMk0BEq6Snp_JdWz.Xn9gg5FttVyuIn0z8T1G53ST7_9tHshS.ROa.thhsyDH0.KZS3RBdaY_9s_P9WulN81oZX3a78mekwTggY7eK8Y2LSCPeeB1ZdSf.6ObWWvkd4vKF80iLz_JvGFVJRUxdsApEmXaAC5emekIgICPgJ7gOplXPDCbOOp1VCvIe83sq1Yc4sLrKo9skDHgV0L5fYjN4pXB5kkB9jNLt1G7Xs.3W1qFmDSxJCwVhjKRyTgohxG2e0OTWsvuwHwiPVakgkCLNdXRnFgDXDWzaIl2.p3ktMrA0DapBKC.N1w9JdqGDrrxzX0BzvK8M8L8NFCPLtrNhcN4D5y_dp_qHhFIM5ml8nLOW9tJ7rTBseAXa5Ak5Y9O0eH5ZJo5y.tfN.ufBNuhiIFRuu2zuK0JMihP5qDoOyBRPwjiXzNsUR2YGhiaF3_QoAvEgblrV2E0i1vny3f",mdrd: "XDqFBCHm1d1bEHqewqscXLpWILnr48JVVuKAIOe_Yoc-1739133242-1.2.1.1-I4NUzIPX3PMPC6lGzviIrC2g4EYWhbbkbexTPqjozUBNZHwono3uS8Se0LGgWLNNt8pLTna7l6mpWCFiyJtGS6.LFAKK_gEFvdsV2kNSHmYAo04KCEEizJPD4r1cnbi4y11Jxm9qmBpaHShfwpYo9BF6YSDw_plDEH0botHMclbbo_nvbZibU9T926inno82jkm0hALRBNfDE1RFSnGVdPE4rh0ND_P3fKmEl5x9zD_ML7V01K3Mehm0h__hyZTYTr6jVLSNAEB2X7pOwk5THLRgeKDjJmaoqub5aljV_4R7M4hdbcW_aZeY35mDtuQ9V1zRMeVIpzUhoNAzrcd.3D687ld0xOjE1gSEX_DRm4lvF_ig43ZrIA1.AOrWZg7.lMUaIeSJNSfHYW7buLY3KHOMbhSXVgcHdM5TTSMB4nnkVC6cdTQTvdbJ05SAzG0Cd_oOTHSl7Xn4ZdTTcbkymzTTcfY1WdG0KJ147JY1eMGT9bnN6660nY9sN8vU_MtSaFK_nBQG5e.P_MOP3apLTQqizFqewCHLD5Vdow58gCUueMJUw_GQ_U9jjUWfn4Mt4rGrvUXssXCoCcEyeO3cKhQ615tvwTQyx7VbJvzHnBXP.o_09ffyxRI2KvUeS2yXVCEVkcUgf6MOMFFES4bfgEDtPpkYVoXjIfDSe2ys0x0zbzjSjoe.i0zNcFWG5eewocKpTTOkWz_XkcAbAGphQV45idHUioEuBwlNbUTkaXOkutG0rdx2geE6pwKV.iNViUm2aN5FcCGe2_68z6c7LFhYLyZE2cmP7fTGOZga540hpRbafNFlDV65pNQhbTSsVtMZrDYUSmqHbnP5f4ir5j9MKTJl7MkjqyHjZlvCNHltqWE3LqcXvskTK0yZwFzjCgGstbTZ4ND_kjlpdtOMQcnBX_Sri_ry94AG9mNnAtl1xRd4PrXSWr3d2QMkED7tLKlqWRVwbCUrJrPgd9YMMNaX91hYppo8bn31889tjB4.HbPXKenKSi45NtDW3m54scmq18MrOCvcLW6iOlOJCoovJg2jiaPrQSDTUcrpC_Q5ThfmH1gxLlB29RmLRpQ_KTv9as_BmaifV.W9AfWclTN4J22PE_RpgNZoNA26D9J85I4Ti5rjODEG9aUBO7kkOsVSMsIlLsqfVp7zLQOJ9CrQnIazOVHI2lKj8B_3LYxSFq4Hs1azLhOlIUKOTrJiYHlawehP6ejTfmOFS3bdCWiGxgtdhFa0H9XJ7yTtgxpwfO7Sq5sSps0eDvyYHny235XNoejHA_AD_wFdlBR8eOI1cI14IQGQ4uw1YoPMEayuE6OY8AZ_xiXfdynT46qcXDAoS3C96cOZOF0UY_aTzjqydZ1r1WcqOEa50L8vkAHpT25ly5CctyAjV6Eamzzy5Lc06FWqySNeo_rJt5SUMw8ZjzA343QFeQKxLgO2wiKtcMA1SipCdjxNcyY8ToZFBQb2OFfxb.Ua0XfKndwxz2qhrWjnX.V56nqIYk_joOz8_FQ0fL8tDBKRN5xCGSjor9tkc7SYSvwjG.SjH85HAtMB7Cj1x8etubQk41i6ss2ACDt8rcTXCYjNpiQTu8bKWLLNcdcOlgdTeir0rUppoFt1UBNNQdR.xnVvXacoTUjYkBCFpC93miSyvCggSRZADvK0Lib5Vuv85rejp9FqkoH6ZxGelynaVVDhKzRaS7z5Qdo7cKgafLXvUe1FiekC1j1ZFVVIhGHEM_IdT3foB64MjYu9.fesWLJuk0bcDClgYql3tDbhe2T4JEISLsj2UbkfVcHv5LyWePPbRbHhTa0kU99YCC2at1F_Y8ZmzNQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f6a350087e7fdc';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\/1753280649?__cf_chl_rt_tk=Alj.UZFMR8L.hZl8wh2vPaFfbbHBz3L_c8n5lC0MW7k-1739133242-1.0.1.1-xrkW5btB2MdWCMqncy0GUjBUQznCzO20CsyeQ.KRU_A" + 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