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-affckw1ml.mit-edu.top/post/8642753091

  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-affckw1ml.mit-edu.top",cType: 'managed',cRay: '90f4450b59cd05f4',cH: 'PdXSiPomsOGKGe1SaBNXYE6TLHEMAl5b.oCAnaMD7Go-1739108410-1.2.1.1-RO.9BwRL049gw8T0zGFAxZ4D6xiAZw1xtiGUA3jcRhfp2zXxHGU6rMKdYA0MPz5I',cUPMDTk: "\/post\/8642753091?__cf_chl_tk=ylcQ5g4V40VT1UUYtyf_tcZ21_mIEoo3lCifZ_tWFTI-1739108410-1.0.1.1-FKHyWRnv8jTTbcIkfHOHhF.SgtFx8r8ksRvqapQb9jI",cFPWv: 'g',cITimeS: '1739108410',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/8642753091?__cf_chl_f_tk=ylcQ5g4V40VT1UUYtyf_tcZ21_mIEoo3lCifZ_tWFTI-1739108410-1.0.1.1-FKHyWRnv8jTTbcIkfHOHhF.SgtFx8r8ksRvqapQb9jI",md: "F1STV5ppkA1mxkHZ4CJ1drYTbv4FMF_E70uL57jTHt4-1739108410-1.2.1.1-wwzJHA4_v5ffCf4clBmMixY.w6owZhhvuRd7jKVgy9VPgLFkRL4tam0YbxOaCFFlEoxHSI246FujixnhSGNSw8IUbf2PGvTqu2noM7W3PqAjZKidHC1RK3s5uYtvCeF.pijs3NStW0E61EUSae2wxobE_.aQ1BO3vhf7v7LDGFJtXk4WPA_S9giAlPSLbAP3aYDDz_gU9OSActiaXVTgOgXQZ2_CS_oeFlc_lUJ5ESIaYePs3aG8y3f8UJVb52Ta_7e.STu6mE0h0_fc96u_ab7a1y6y2qnTTOXPO.JRM_CmGeMcpOaywxUYlde7TWwCIGVTaPvHjhCpN0.Kde0bzaSS4ql8rnJu7jB1uocxcYmofcSkJvIKFxpcQ6ion18UDEIymf8gqVQhMX2K.lfFXVVNT8VMYcAAONXUALsnCTNKBBMJ6TQZ5qDlGpqvnDezPXgowVaWZqR3x2KiX0fxYLmu7oN_NfoP.lArLs2352.GgyoCoYC3NWENiyNvB_PJOq_CmDmmeNf6ytC0raJLsus4WVi6xcAeQNc03y0nVSkT.tKDVTEm0gpDrnxgyX5w3E0LU50qr.GAfCl8iCH8NNqJT63CD.WiywV6x8H3CJc78SwKHl04nolXJ0EvxViiZxiioUFANFdwgKWG3PLLmJdDCVYsuUUZDucRE0DObDmVi_ABOqs464Uq0QYdBpwfYiM5tgd_EfDLM7t00_LrysUpvFnkX7UP6HY62QXOeazFnQbsEjsxyR3FuO43BSGavEYY9sRKWEiT2sYGsY7zjvnZyHl7BRVyqrjzzCV2F1qoxI6XubHFOrTuH_4nFq4EiG1rW.jVwXTnvCNdX7gHBjbB0vU_9AfaVroB7injE__.XYPyGBYA1_dWBp3reZjT2evDHP71mCM6__x7wysAlQftGMC5IO..UK5kYdaov7.AirgZ7GdrlEAvjgoy9Pmo7or_g0lLha_w9tqzzjfwegJ_ClHjmriDQA3aVwXIfLHROR3I7vAwdfR9Jld5VfUeQlWoyz41pvCZkAFLA_bb.xo9etmAxMAZl31W_KH9aEppJ7S7L0hd9V4GiJ95xV1ogi_gf6TGaF0DyKoalzV6mpT523DEXlzFM_Ko2onJH0TyGSL8sDlSEnr9ZVYGPq.fonaL6vyQMjWo9w2tFktxnpgGNLKXSh84u8bKTx7eNZOG2LZjMeHuAm6yHIEFk_3fYZsjtm3CKyG1P91pFHF5UTmZ3I8ndY4Y.sE2zXXoFUlwH1vSFWpYxSD_RSLB.YQWjwgFW5c1beUiWVkEOlngYhvmLIhq5.JUaMg8rFOI7HBuiGiPtgdqCWNtSrFaxcU_jcXGrjzJaKVb6rsgYdh13qlzD0VLvTot0EYjQzx.JPKQjVcBHvwrhqlHMOKjx6lrFWgmDY9FJSzq5R0csZA42atyzmxvtXHfj7PC9ZeIY.kRsR2q9EWgsHVydWpvjmkIQek4VF0MJa0Ie0r3wVC8fvhcvb_v7v3MqdmVzn.hhqIU_pr.dh2eyh1Qb1PjUNMiE2g5MTkM03dbp1xRCzNSpVv5VmEuH3RjGjououltP8OrZ7zdo3HUtLd4PDKVxMdHo1JNi8n8ONp2EVUJZ3h1OC_8Y9fXSWfcb6.YHzY.a7U8FBQIdp4P5JNKNHE9ngyVLDC3Ukev.244b8o.HOpve3EZ_jRTlIizUUZ.Ea5Kh_TRJ0ip_1JTu6JquSPmE2ODqaOjoM.OjLa_vXNnF6s8d7HUybRv6NB4JBn1aPb3CPorYCoVxsEANxcpuSsa4ejCfFxrs4T8.yURVtIMdwaIKVvWzAty11wJJBH._8IfPsUgEfcFZxENMs6VL1WN6RrCPsoa6aznFFuiG8Ds1x_3W7n3VL.yIqxjZVpwJYSpZin5rRSbrkhU2fejxdR4jMoXR5YvCwNHRpau_havwmDEUawEVPOq.m7B9Zi6wyBsb5TxhGzveBr5XooSVBQMmsDSY9iuo7d.T8ktgEehSVsxy3fCSm.lc3rkDDIN3qVHt_Y2wOpn8yiPIvH7QanKWgqk0k9ynAMG_5Tuwpkd5sKlLlho5d5jnE1TiFXKIZCBHMRs6A2cN3DDVB9Gw5Vfton0BAEseQUCuSENZHC4zpf6GwAFrkqkXocrI.P03FUPVnqwgRGHlAB_C.pLBYsUtKfYBRbEbecLSTl.NUH_sWHfcjhw.PeHpR02S4LdjILH3fT6L3eYoKOFI07QyuGFw_MV",mdrd: "TYyUxkRkiYuu988VXAisgHRdNRpAdy5vDA4EnulLA0g-1739108410-1.2.1.1-v0WGUA7eqsgQMxRaVD4WaXmMtfRdw1C_atFZ4n7xl3e7ZYsuKZdE6cC2L6RDD5iuP9YGUJR5ewfG4WbCJ69qIFheSrD_RSMC6CP3e76.kTkH_3g3uAKsVpaaEk.dYBCklrrie3b1tdXYHkPSoaQeQB3vDkhaf3rq6t72p5qndPZew1HJdm43lUG8a7z7WIVO4jjRMTX60rXO6gS1wLDJHMGecCfywTMdwGvFdL2JvCwD2M8AAWfyKXPvZ6PGQWCV7ZnIGNfEx0eBZ4JiX0sKLSCBPCtlyemX1rIdnRJBDxVU_1pwdjc2qBhOMqWnLZKQZNCv15XUPCF0ONHustP7TLOpv0Ox1Hk4fqy7kYzaz1Vhjo7Cdol9oeGN70k2iMS1Cj_LpCTWEsDFokkJatiEDAE.cVmvALi8bInL_H1alqFDpfnEFjgztDB7QOly9_L6NpQbmbhth6IP7J9EbsRwHwjFnYCmhZ0L7bL5mQD41hP4xQe6q_UcNoXd8ElToT2I4836XMkRLnn.joYNm3V1KPyiXEiH8l4P2Jp2Zt89lMxcCkigPBx4w38pKR_6HTyX.x4_UYi5OPvCo37FLpo0GZANG2ri0LXC8gbamhcAKMAbbylcue6ubdITpBYJXLIujNo7G5GMWXdiWxEYX3cWKxDfLQHHG0ijQDBUcXFN5Fd9Fy37dfcinemryxzVFmN7.AZEL.cpeAupWxDqSkdwzx98Vbib6041JggnOZOAsF0JqzMrqPDVWZL8egEpzNQN9f1GxmzqOhh2pofAW9gr06pMbVgxqjEAOmuMoq3pUJFjCOl8KHlms3HNbjGo7kca5xC2XPDTG_4e.f0vjak3jBzSiRmbfG2ID9DYh2m9oPB_ekhqHdZYV6nh_TFrX2y0X1VQrSZb5QzZHsdp6xAPjMv6KO2a7t0fnWNtTtdVVmdYvHKDry7ybEqi16v.f2DYIU88ImSSq_ayAdk9hJZ9O_Nq3adu9Z9YdUP9ShkNfVDzP.V139dIXFmO54D5F6mE3yDia9hzrTtffFXM7kW3a7kAHzefyIHaotZ2xUqzXtdDBRYaOtBT1fljtztYPebgXC2W.wwZPnRKNheNluSY652irqc1.RSYjvl4J0U2hmAq_RnSym0CCGKedwhDvNPaohZ35pveZ1s3bRs4KMVLOjx.vXaDZgWe.Uyr55UrrtCpAEBaXUPcyeNBM7LRCaRrwgoln_jeVFkXdT5_iiZzeUyoLQ.7dy75hSLYy68YFoIJi1sm4tEqrq5N1JTuQhqJoHdyrEOaqigDD8UhAcYbYCsW5ST25ptWtvvSevK6lPNKZcftHD.SAht.Nuf1SAXO3RiyTM5m7Wjzz6yNiny8_HYDo3xKeCZm6K2BCCLStkQShyaLdRYeLpL61yvDJvbnvqTE33pFYi31Xu.1NLHO3rZ.QbzXcrSo2WEmEvBDp7yGmYbvAaUNj_4BYWqbO9ssR5jDQnDKYhY0voeOvPbeyiWrFbXwQpcdmqoVOyp5tZ5On252AVHDa4zPpISIE9EV0sVlWF8q.wmev79h61.5i58ZqHFtnXGfkSLz8qC5Pq1vzecqIW7.er3eZcT2zG.l9aSGrJVN5mADbbcPb5amdOHC2RRQXw4LbhGISp1YGCFYE0LF1qrfw6GnPcCwKnVbLbSeey2VmxhkML.YzsVjtekGbmADe6QL5W9qFQ3Y0bO5zBjlrpYxbyxGfLwC_imp4ODbEmrYY0TlqK9dBT.S.dxyTeLD0QoTTwlep7_fxs2W2eO9BruwcrYxb_.HXh6Rs0YJYLhXy0RR1whkR1.ynv49R2uzcpk__qMcqOSueXo"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f4450b59cd05f4';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\/8642753091?__cf_chl_rt_tk=ylcQ5g4V40VT1UUYtyf_tcZ21_mIEoo3lCifZ_tWFTI-1739108410-1.0.1.1-FKHyWRnv8jTTbcIkfHOHhF.SgtFx8r8ksRvqapQb9jI" + 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