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-aff9znhjj.mit-edu.top/post/7390185264

  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-aff9znhjj.mit-edu.top",cType: 'managed',cRay: '91105214c9a90766',cH: 'tjmT1d8.Z6M4eyEY1WBxpiQIF2vOO0S4BdZ_D.LQz74-1739402545-1.2.1.1-vj9ppNncKxIl8pv.z8.qdx3Y0pEGx8_lGf2jnJIB5e9trYST0KndrxNIjnIEXCww',cUPMDTk: "\/post\/7390185264?__cf_chl_tk=alktt40pGHloOMX9VbHDhA6oLE1Hqh4XIulzfcMA5q8-1739402545-1.0.1.1-T6xHaEU1bbf2WU1RCQzat6bsnlSW6P5z3v7kvik15Xw",cFPWv: 'b',cITimeS: '1739402545',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7390185264?__cf_chl_f_tk=alktt40pGHloOMX9VbHDhA6oLE1Hqh4XIulzfcMA5q8-1739402545-1.0.1.1-T6xHaEU1bbf2WU1RCQzat6bsnlSW6P5z3v7kvik15Xw",md: "CJ4kUJJT6CfTJdh5UGgozeSYTCCMV3pDbjptI2HPry8-1739402545-1.2.1.1-YvCjNViC.SXXms9iDxmjTRS0puiBlNzgvDy36eInIFWHKu1SdCE6vtpP75K2Tii8jChbNs7OXfK2dZtuxzlUBiHNcy47WAA4JxKEeWDmcZB7QBN5RjfUT.ih_.Sg.e6lGYwJTT6NBENGjfDz5Erp2cf8u7GRwCUFeJ_RmHZF7fRsBd3Oj1YOp3kgxfgqyvO.Op1Wp0X.4k0AhADCozcHI1fkm9OLrKiCZTQXHHBQED.4DWUpqwDV_nNDxzROZYQqd.gmQJqlOJareUu1s2iISz9v.9dYzVB6jfgGc27_m12FGCC.NeLSsVjWefuutRDIw9g6pW9sLtmG2UsRLp0kc2dcVAuDUqv_2StgzK1UIAhNPvTuxKVnZ_HjjDPohRQN0tayAuqvOVcs2zV1fDM3ziJ.oXnZOlDh9rSquxTRusRf5z0Gnklu8pH3P.EN57.s0Nb.H2MJpPvdHQW15T.8VEf6KKlq2VCNMiGF03OXYQdHLs3l..u_JM_26O9zUdjsyrQj_CZLC8nACjcqv0IKVh5iWShhS3S4eK8AWfQNwE8RCfb3peWjD.tw3Vuf8h6fTGk7A97p7psYotPHNPMYd45AcxjaUYrb0boKm_hCY4hJSxDKSbBOwP_SIC.2Waz6E1UUBWBE_nTLdBkYFoW9_6CwaDMG7.k827GRiAZtyJJ9pFHRgxz1VfknjS5B5Iqs8trnPS5d7ZKtSLex5dU0zE37opglFvBfpZ6ziKUZfBBNJP.pn9TgKm.Y_DSISfyYVrANflo4cMSafIWm7Ajvqbt8qKhLDFFyI5oubxvn4Gxc5MoMTKMFkGFjdsesaZGHPYqQmy6ctGfPsvmOQVNBZXv1oNuFDuC8k7brao7JBbVY9UaUKoWDP1Z_bD6MQO.Vlmt72rFaRAju25YTJtuJMOiNwFbjMC76JyKXQNhnkv4tLpk9TLkXpNnuEwDmAXBxpRsaH58VZuJyJyqspcwnxS37oPb3dyq1clX4WK6tRbVhxPDrVq8Ka7d0Rg9tpLBrKM2YhtRvdI8xqTQpYLjb3lAHoUIPfl3kH0ETxl4WIfCwzo7hxcdBlXRbl1QaT5aFNjAgcj_AsSXaB_hMiKoqEIGo0DnqFyyRS6ThDUI0uqaOWulkYJjkLF2ZfWUmBRCM2N7lz65dngodL3zJ98ANo81vXC.i100jZOHzjSvbEDv2qXOjSozCumtgCPgoCGt5UOIgCYBMafZO9avgRkK0zZEkfRBb7tNEDaicsOhQ0u4qUj4CZHm4VTLL9bli0xUO4Zh1thMGc_SkOGH1mikA1.WBnbiOkmIlToABwHArdhnK2MFwfxknQa6pVTyRfxEFSL2QOGW87ly6qgbW4dnKXKmgwhR2ZlqeaJrA3TiKy2IW_VV0cLHf5ybFrgscMXVITCucC5FfmWGjp3rV71yXwzFv9BmQYix.Dh9bY_C_qzAYaJ3scxdEdDWRn4DeCt32RpOz0d1YLWaz1_rpE5gmTvZ4uOnO1CE5moi.gIfkK8cUmxyOfBj_cFIeiY.ODk00S5oUy3mKPca92cxUSlPGIWePQRV62ZSckKhJ3CtL9XlF10yHPobaP7PjHVhwZCXvrl2JcVNVb5hgehrMr6knM7ev7tOAvKrBdqBaMgTcNOicUxpvJ2rCtDLaF_Cgnb2tnJ.SQOlgy1vn1Zm_Ed8E0203uoj_JbPh9Ap6fCfhnnGbEaxz9Cd5JGep7b9RM3__FGRhjtzxJc98lv2LggU5docqViiHMmYUhqownTfjcirVhyIZ.1SpCakPaf4VtX3sj2ES7EvYlADo0C6RPzW5uds1m99vlyqc1WTLjrNDmG47uCWnaVASrieWJg0ca0cfFuNncQyDIzuuD0P9lRjMR3tZO57RE1WHMdCJmErnwk7fFpjv51G_9UyRcyB.Sl.2irXeaLW3an_JvG0VlxHU3EZqCT3jd92Tp0GWbadBNOzQ2Q_kcqrJmap8SvrnwCd8KgFlEcsaNLafKi5q4AcouaBpsilYWiLC_ooydGaS_E3HvvmvFM.qZQ7wkIlzfzs1ejyWAKymHm9fLQ8TxjcJ0hA7EEYDaKGmMCv.cd5NGfR47M2DMAYIS_vRobUGDgrvfHYOVR3AcHQmxK1zAZrdpydA5smdB4jw3MczjYDHrilzWHxvWhVhdHJcf_if6VMsTWpUWWGbY6_LIVv3ecubD6XkUr3UwK_GbZveTjtaOgUKnZ5ZZt4jU2W2SQF4pNdv",mdrd: "yFx0RP7D3TbMN6enXldbBoqIghgJvbUnjz_nt7P6m1Q-1739402545-1.2.1.1-797P9eIxS6m.TK9W8wv9uqqDp1jayVaM2onqoKILJlCpSgbzrIvmubsB8kaJVdTCKN6oZbtoMpefRkYRjHSJHNgqcGxGks_19WXT9FjGBeOrBQWq..934rHhZNsAsn1JUQJStRraGzrFRHHMiV2jizvStAVOa4FBXjtM59Q7bQYVDC2dAnPMTaE0aj0tWfuIBlxQ8YruY.8Wwgr5fh5zJ6IuYPj6xf6rLWVKUNrPZk_upVH6rkOImuluBfY9unxdictRoyQpJO2YpXd9Uf3rBDnQI6LqPPHcVUctcOvgLHbtFGkKo8dI7a13adk0yvLkWRply6_BrOO8Yfoey7Rq5EN4xUJG8d72ZKU_7r2EOgpbMKO.AD5UUV02Rw8sx9qsmfObqnOVLlRqXa0aC4sGAAj4h5LP_Xy4.CzMWhNHCpC_vMcSXiShKEFTv1etM3QqYOB4GfmHmOd6LRC1mIRoeW9bO1MtIhoFQbEGq_8Jx7rnmQHOgsV4ahXMuvLd_zOd0oH9A465MPJg3z4HstOd9mp0X5kLNtoIOaNKxKNXzCKihpfhYIpWNITVMZIhznPbRMWphYbynbnrnPPhcDALVsEgLcN8ifBj363u6YPXn8MXmqSwaX9G22LUejhfhZY7TP0ttGMY4ygq9aGYPhacBBjhqIafnf6JyRZQE.bBY0hwTvqR1riTKmM.YWB6ru4URffiG8eEoTPueVJt_jxMiYvSraVmgBo40nTQfnxxuZg2kuL7Rikvx5kJWOKrqALRm9DHWH4ByjEW95aTXNwLXoO62HFzPZshwM92T4mNfnuKeSc0xRJXWRJ6MxTRz6X8h9oul2G9NoxIguM.FFKhFkt08fkIRdqmoT381W8ZQrAMRBh0vpgX3yVFaxAcaGKmExBr3OTu5V34GCtNiPBhyn7pscV4suLJGLsCdt.v_CwAjCsmDJq8rsy4y.9mln0o.1bzN6vOLmLZ29FpajRcV4pFXnCtmCPMVAcnLcNgfWE5CnxDVxp2im3Z8Jho8IiycX2GiAqUofO8162BhmQ2l3t1fdyWN_R58aSy82R2rirLUeM1tusa2g.VSMtxGoOx5a1UIz7e5JA8OX31ToYS3owsg97v_qg56DPhQaRzohttAXpjs77eTNELPhzl_pZtUhRy_8gKS796JKweKpVMP22LA1_riLeq942D7BnLbKw0iVmC6uZtFOGDQxPytUiKlLA1kF7G9r7RQo.hfRIQJan7cje4Ow997Ji9eCxk7CYCw..x8hM2Nx1mm4d5U5zxNwwx9FhdNHVTN7fxzb4XPjmFcA_BDsaVVYWoIN4LMuKcJdwLKWlsZzKNMo3oGMPsmJnmg_AsGZProhRp36OYGlq9aM3DoMDKnQo4bPKaW4PozCNkpDzckh8gCGD8n6CH5E3rjaH8yH0kYRZNUeLbJrHccRYfdrjaGm0h2lj4NJt5znZn9tpehMMicF4jsFovoh9zSDw1VLeZKdbaOmKtlR..sJ4brmiRK.YKga.mUJBH8qX9OwmDvIKMG9XhaakaeImugT3SfoQchEYamp07I7ESJNLkFArkFbpMTQiOTzTTGq3SpNuo8lpjTCQn3gwJ2L7rGgRbCcv4HUzDR24d2XmSorL5HlT7bLVCeX9zEz.zea0mSWCFOhd4SqGI.ctOn8X_qM2NEIVJh6Ejcy9JRHWIZrCOToXweaUfC8b1P6pB2aBG1vURIrbd6M3cyxfzGtrGS_7bz4JwYglsXp_TWLAQLLbYsTeSNxf1mGRE_m8Um_D5ItcxVY37KjYYvhA167IRN14t509mbf9QylUYnyrin_Z1UzzZI3GwpG9hsUE"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91105214c9a90766';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\/7390185264?__cf_chl_rt_tk=alktt40pGHloOMX9VbHDhA6oLE1Hqh4XIulzfcMA5q8-1739402545-1.0.1.1-T6xHaEU1bbf2WU1RCQzat6bsnlSW6P5z3v7kvik15Xw" + 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