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-270069853988.mit-edu.top/post/1437609582

  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-270069853988.mit-edu.top",cType: 'managed',cRay: '9112ad5afba0d46b',cH: 'YgGgBoRNTAULpYjv4DbyoGOQu7G8iMSsjuBx67Uqssc-1739427255-1.2.1.1-bdZ5_OPUM8rTNkwMrbFU49msXLxM4f0oO0iIRtleb_SMWeClc1j8ocBohOZOCNAE',cUPMDTk: "\/post\/1437609582?__cf_chl_tk=WKHK29m9BPa18KtgHE3JiIZOcT8Ap88LxHrzHUNWT8M-1739427255-1.0.1.1-8hUALoSxAXmN2p5B.VviG9viUJ9DyDJ2q3Zls1duQHA",cFPWv: 'b',cITimeS: '1739427255',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1437609582?__cf_chl_f_tk=WKHK29m9BPa18KtgHE3JiIZOcT8Ap88LxHrzHUNWT8M-1739427255-1.0.1.1-8hUALoSxAXmN2p5B.VviG9viUJ9DyDJ2q3Zls1duQHA",md: "fBOClED1u9sJPg3xJb73LZ25XPZdJAReAHxlYZ.iLdo-1739427255-1.2.1.1-hDttOLTgwQ_Z2Fld_uIh28zh42UN4nF4gZ4jEXlP85a6wL3XFVJJWWp7uX8NQCp_TYqsFg4MtEXt3gimfxnCxbPtGVSj7KG.Rc5CNpwYiAhPDugQN8GH9d8fJu5EyPiQ.9GY.PA9gTb_nRLbKHyFh_4hiPTm_px7ovY7e4.Jcsf_QTOZqc8tleWoSD9K6bTKxt2i9OtMIiHFGSwh.O9iHsjd0N5pN2QbH2376zZoZL7BBCX04rJcW2XrmCz1uCAaQjcl56EgpP.oLoq2sUScanKjer.31ODFST3wvOVXBItSwSFyDgvAiiDanDYF5X0KS_IkzUmni4wUi2Ci8vrfoTJwRHthbc1tE4s9qun2si0J17FLG2vtEo2SgwWShicYh_TiU_VFFKr87jwFUHGWXBiLE8yEvvesbfXaxeBgj7WMhrbgFgmCHgJT5qX69jryFb0oNs_LVw0V2z9PveVAJaOm1pguAH.s17DE5bhMSJ_v_s2d1CDdi9XxHBdO7XxUlm03a2tCcOFCL8zCi5v83CH9yziHoE9Soj4KbdFNpjoAeF9EpTPfGhOdJfKgaaXRZ84orUKvcBoDhCiiSSJz.1UuAG3Ohu8jco1KUVLVCwnzPQaaPC4nvrYLcSw8eN7iyzwKzVemgZyiMwXrraPsYcbCjKS2._tHQJC8.PGAW6RH87KdkHx4n.nJsp.ZOV7oSBhcXay3H21gkIi.7MONb.KXrpsgnhzb.zd3BlN6yT4CipKMeWekauZbwN5VuDHNVxhId6FfztQR7Hch1Zjy.lH81SR2sdbddSvUPORBKkBo_JMW9dWP6Qat0KPRfss_9P7FB5zyqARgEHQR_UfNyp6g6kpe1jY7pQv9mDogXmx3Y1lIKnaA0m6_tB7..Ysdlc5lxCBF3Sq0N8X_rxsm0QpG_4tws7_E8PVVpO3FignMKf3jguUlYk88nEABJpQo.39J7ISTS75DE4DMbRz_ZgL9v7XyzZkKiQ3M97NVF2D7Q0hTgrnKiYgaOIoWQlsYiwvzefPBDoYq6sXfZbJc7GvQgfAmjwVjKCCd0IVs1aV4PjW2_TXbatLox_DyZrlCZ66U8911PK29.KDm7qOCnq5u2orQlXzw4ucfArdS5KOzrctZrpkAHyRaSZSu_vL7AVj18VL8Be7qzTK3ZuVBkpzIwmUyAFiBQYiZLyi1m6ED4L97Yfd7bTxZ1eZEq3sWsZt9DEiSzhGykpWIrw3khrAe_J0mqdBrrM1zXD7dSKyGlQqp2jXSvYft54iycd0OYGdcIFQwl3acgIMVFg_YZr8yYAdGCRPSSWxZp_LjV9DtgALooWXHC4Yqq4Dh8D3PAozfXC2eyB5yI357s.TFLn330lqTvCSniIUAODO7jdLPf877Hl9fEDP38jQf8RHGmSktxUe4dXStU9o7K_U03OECESk3p3oCc2c75TOB8q1ZBMCFO1v46x3f7TC0BpXSVA7vjsAk0FYXQquWm00bCUVpC2n868VI4DqLFJEknGC6CaPec3GcuFiQbM7m_RKiVlWYRRuOJYLzCId5LO0JGUdjCRuOZ.k.EBV9qH6.QDpfkZfScaMIcuJlWJgoI4zp79Gpfl8hEZDSrf9hiuSp8vJ8qOIidx5lnxaz1PWzSzVdnpCXihGgqpd.ep03aNXU_wt1YL2UlmkHXqH0mfH.hUrsk7zBm6vlUoTeMCv29ocxXWshp2QHzutC_koNWYDw9v4vKDNvHY1tLGNQr2g4MEuZYTrziXC2Y4Btlb7ZZ92a9Jj8iwKRsoca1J3R.K7Zw9eLdktdeJ7L2P2L05A3yZLC0FXPySfMwojr0WFjtvPJsci1eW.HGT9eRMpoIZhyqtfY50Y9UGznY4HQ_cOa4SXSshxelwN6hP6k0EP59N2Aw9ND2ecEna9DzuROcn4EetUHDuCyuSJlB7KrfK4QiC9wcqsCxgUDql7uytOQ40o5gisGpueFnq9lpA4GJt.RPiFjwqM5J0NKcLTr_yB4y_mtk8OBR1f3_SA5TrOlfiAFRMoIqb4W6FtROyuLkveomlqzuPmqIVWd2PA9nyZmE48.mAWlQWNT6eHLfZ6A0JV7SkltGE4QmpWk9g89cqazkfArFgUZ5RWV3Rh5U.f0p5uiAf_YSa7dqEJzYueGru2dNn8gxCYGPsBDjN5ltZVrRceCJnPLdKTs_F08OP7zjMmqktnW_kQ.GkC7VEyBVxszwFLNcLW1_EcGOkVc31Wp",mdrd: "PlH.Ufr9O23l2IPhIKCFZhJskuHVdb5Wzh7HpXErZZM-1739427255-1.2.1.1-kKVNTnbJZ.s_QHKCe2PtW6BjtLaldYvX2HNwazgrm0CYIwho4v.G6Uj3ZQHwLpref6kG.qcg4WVU4XcKM71eVdD5Rh9G_AtBrAsxPxxHyswhr1CpKgZtWC5_ZGDkSgcMsExFPyxZkxtzhRMp3chkM30aOEg1abR5OY7xjucbDsB4hRhXc7dxid1h0RJnBqlJRzyNsWr.XHtNuKyoRZbBgv.CaCAEGdrHw3iw3WIPugmvZsoEYbbl1DY4z4luzpK0LX.J_rDkY22MhcmTlXn73PFcukxAgfpRBQTbjrYABcfxFEqQHR0cvwWt0L2QLPuyRGMeT4pnGWINnw7uJ_3K.tL9mKLy0tM7pG9qbciM_qeCu9gchm0U_QCNfullebpEf6Zuwdx3Guc6T..VvLkGM7ZDlOgcNCp3zu1bDmgexdh3sf9POXQPEwhKvDzrxttrCilEp3AvzXrgflwJSZjOrSxvo9Mn9F7FrSvj9VcRRZIlpAVHJWFGBdqLtku84BXIpnv.WkJHCqOciD5lSFpbcWF6PVUvc0mWUuTX6CcJV2fFvHrPPuEsMvFQqNE2KJ8pm4P.aN5bd1lmh5ukAl2LbV.vFiYmxAWoyIIbndcIYeO4Z_W3zI9jk0A5rS_7jrptxZKrFynK.NH6loIvxPu64VsxG1tR90Al_r_V3eYWxlEyCfd4ONc_pI1YBhB07EVijLVzi4AZRIaVEP4500KVFhu7PKbkIt_xqfzts.CeYbrbYT4TEXZNim0U2DV73SX0bKwFAC6oKRJE01VBuVDCE0VHUT.aGCSFh7l10QDNjGrbDN44RssfS760C8XhCI.66mKULd.bfPOHNSsPDMyCCXUtxL068mIgsz_d2YF5V8WdoFvWozVeHiKWe1ItAEjcBu9UEjDH.J2YtTGJMO4bxX.MzkPBH8iYHcNCbw2ef7al4.KKgVbcNhOlRfTU_Ff0CPQh2XnImGwyo.RFQyyDiV2FyaB_UvV3z7fl3yxlRVvoEoyjnvpCwYL9WGsA27oPsJIHBlDEMA5XGfpw1jV2dd8suXdfVG4f6Tgdm0I7fQ1Epgn6Z7gK5EkswgFIqugd2u8xhJPBHB492.JT.mscIxs1FCFthPGnjBPd0kqFghFtolxlVC69myu8JLj2KX9rjQ6Hf0GYyypagzjYoPtuuC7kdhMS8n3PM7XJSe0xcs1fUhZXNVgBlVMDoHIqJwmtsrSMSFI_970UV.40r66Pi11BX7Jc2rd1vLu.23veD8222QKvf_QixwHHbB66q9D3Bfjb6jF2zCHj0fwqwhP.2.d2y_sgKzuHUdTJkUbKivq8je2dspt2csmOe498ghNdvVQP0uC5l1dyNq9PNRYqrzUsIAeleo9kiW5iunSrTD_gdhdvg43GagVM9MmMUg.UFJRdBm.e4ut4fBS0Nl.p_bVYpVN2NbUWWu2yYvLBeewUKc.urlNkRaYgYRFoQIfjHcKgarcgdX9RUQybPCzoj_f7d3bVZ3_RuGVA8HsqPngyH_cKztUNT_XKcmsFjXeDrjJ.3sNMLuEESANMRCm9okps6bkF1rQOAdWhIBDRng4IwfvnVpI08X2tQ.IWeD0UYHtsbMVYwySnkYTX3DCG9LpN0Oah9_2rirGqyZ6JV6fFPdWq6VOmgvkEsCqDqp_GT0ewUpE7izTMLJSiklIsOkyGkii4YivTpqc3XOtnf6piM8G3MdgIGTgjF5GlQM8c2oUJVTdN7Pm24hS3AVueGnc7XybLvq7DZgLkauJyOEY3wyedvaJVH_r0QQ40M5MbmEHPKJeEEnGjFAwjRBRD_Q"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9112ad5afba0d46b';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\/1437609582?__cf_chl_rt_tk=WKHK29m9BPa18KtgHE3JiIZOcT8Ap88LxHrzHUNWT8M-1739427255-1.0.1.1-8hUALoSxAXmN2p5B.VviG9viUJ9DyDJ2q3Zls1duQHA" + 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