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-afftnzigz.mit-edu.top/post/0472639158

  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-afftnzigz.mit-edu.top",cType: 'managed',cRay: '90f4085a6f4d3b02',cH: '2vewCt6LyQPxzRnIpVVyEDADntI8vFq_x_UcdZwFM_8-1739105924-1.2.1.1-uw9uMpvSpB6RKZIXlDYQWhCNB4fVgAOUgicJYaXvUFG_fKDdoCRkk0fkoUucA3GP',cUPMDTk: "\/post\/0472639158?__cf_chl_tk=yT0aXfffYBZto2kfH5eszAdsJCRvtWR1OaJaHQ9Ga_c-1739105924-1.0.1.1-VdgoKZ08WG_jWSK5LBCojHZnl6HunzN_1EONieOHHC0",cFPWv: 'g',cITimeS: '1739105924',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0472639158?__cf_chl_f_tk=yT0aXfffYBZto2kfH5eszAdsJCRvtWR1OaJaHQ9Ga_c-1739105924-1.0.1.1-VdgoKZ08WG_jWSK5LBCojHZnl6HunzN_1EONieOHHC0",md: "c3a7ISikdpL55zQApPLrokvQWgyOrndrKVh306W56Rw-1739105924-1.2.1.1-VQ_0_r2u0vtOCOj63SI5DWPVNQrGBsEVtP3ZJVwOYx7okpWKQLurR2bSSRVeyInEY2Mztqx6L6eMNJPCpAz2sNpIw0z28NvjQ2F1X0m.4UB1xoUSMABHRVTPfg5JYrX9VhaWJILIxRsqzW9T4N9fOeE3ijA_qVK2xuC1o_9I9VueSAAhazi8sfl6MzwgLgfBePHWyYHfPUx7ezCARFc..2MSvGvR05kEnTH5kf3eQ.1SDoDdEXm4RM..bulv.SYgIINRwTvLMw54b.eQ9SSRZKL2zCrzMPvN8VKEhNQvi_R21CYQXft4LYTXnxfc3t_6ZxW1hYLV_vzMUNwzuU.ddOOnrSYUvr_K_CicQzppxb5f5rkxr7S6LPR9iruK0.veNbQINDHCYsgflE3vEsNKVMXi3Ew1vvE1m28TOqwBbgWl0q1FQ3IsTy8nVBcKZT_NoxU1oPdzog4pikV0b96Z5OSvNnom6Y1tWkf5XSYRkS0090aWdveF8zFNgP3iTnTIz6CE41cjQnC3gZXa9w_8veVmLvots5mLR.KEIH9KARaWFErjYCCB8iynbHGbmYGSSFnfbJzF1bms5OzoMTKti85UTLvj9FQQhkesD9JoDrIskR2li4.URB3aWL.llQh6RJU3_eVj8OwhY3mBZSc0qMm8NeSGizb5Y8QOSXfHH9mT.d8txgExiMfgznHJArEeZ8IXR2cXam5sif9qEv27HUPv.YgY0i9qS9L3hXIQnWpTmXnbyEohZNlB5rZOA7HOHvqKpZdR8AIvHpXx5XJV16lmOLmm7mWqS1BPTNvDytyfd714zRS4t9ibeoJWDgBbQ0N86y8uPV.HPVzt3zsQyhRbFdew2_BzSSDfh6HZKFh5kcM7xL5NRjb58L5K0_UdMhCAgkZEFAzkfUT6M5su0SvVKlNOBETa4BJhYJKyH6KHNflfWm8ZOjgjiU.9tVwT9aBN7MEpFeqwN5H4lVmCXYxX_6yNjrpq683K8GLopf7H_PE7BJk6n0tYj5ZK_0KzaBUAoFcO2Vkq_VqovHM3ZKH7arxbsKcodtEQA2vd5BBV5PGvqI6uXQC0u9YSj0dq.LDeCGiXBZBEfGFmrHLmSjEU4CQ1Wp7i1G_BaQf3jrlc6EfaQEdEZjXfu5k0sQ6pET9Su.NFe1WKSoWkUaIQ.UkckzMgaoIrtL9zPVojki7cdcxAbIn0KvsgZ4YtdVP0MlAxptC_u5RL7lb6cGLu8.y0MB2PWhTdcpar1UVWUAHvolaqrhLjQ82xwzJW4y1sIC_Az9sgCaSobMDYsUMWt3.RaUt.MnKs.0qEva1E5zuFXvrHU2c9H8wQ_YvIGcofx60gXwz7Q_yUMUf4ePdhu5orV3vP_Ys55YUtbVX7jWxKRCQa_su.zSDlQKtlUaeED5TwHHWQVPYCqZNNamZJu.zWFIENMqa0B0jpAFjcCKfTMknu6gYmVf.R_RPFosNzU5lFOl0rsXcUIguXdRW30HJFYuCi_QYIZdhePkeO5Qa94Mn_KmCcAIJrqkH1YCe9xlbBuBEYGMDzgFHZnv083QQFnTywLWxOzNXJqF9pXNJAZCDMe3lp9U2QQ00wfwWvpHfq4KdB2IGMbvyXI9RKkQin1IzM7MfN31VFY5ohN_3jJ7Zb1D7GsGnWY3lP5KedbcwK4l4bNcLnZK6Tq.HNKW7ZT_4_dkWnfUVs5_blwsLzN4m6.rrSg4SfkjPurNGdQLvVD4qK4akhcVt2p64IkzNIJEXG0Z3XiFUHDnBg7ye1PLzuq10rRMQUMEnKTfiomZWKbWWLirbGhXqeP7M3yYrw.TXliWxaL.FPPJBYfoxflxAMmPKRC9.m0rR_xY0Qp4Kzl2PcaHv.GKAZxfbyxlx5k4fgg9H2t5jUfH04IxX.eZkntOWG6txnGqJVbaT0OUBFTSlFYiZb_TYZHvwQmTSKMdrmblWurFCOuxfw9pW7yaD3XyEDaZzeh1GRpwjJ35lGSLADLyx8vqEaj0yk5fERBtcDz427k9pziBTQZIBASx0n4tmJa.MZO8v4TblyQII1Gy_QTJCoId7Qqkm9YCr7g_lCbnNaiBv35NumyeuM7SVOIR6er8T0yRXE829ueNhpibnFh.ugeWgQh7sDwfxf7iQ7n9ZbQGJcmOACu.62zWtn.3.kSpBJC_0ixycIZwULKouMnYHqCqL8FRpSTcBnCZuItNCE9WPvsdPNsp6QtQhyr2Y8Y.SYjZDN6NnZ",mdrd: "B5GYANVJi_hApHk5_z2nd10HMiB.9nauDfgXBoJUUVs-1739105924-1.2.1.1-irLXqZmAdDWZrma96ZymIxoNYv2y1WCvhyWEuCWi4WciT71PZxdSjQV5ZWUVZkRicgVQHI_zPY9oB46HW54OSOw7ZTSVZpRv3iOZbQFSRuI_BFnw.3c_W2hV7P9FBtuhXl.iSycQ4HkxiVU_.QJLrq3sznpzz0HwGmGk1T_ERgKcmqp5rnFUlG6iYJCLB4D.VykXj_EchnSsm6VXAl7jaAi7umNDI_6EnPwpc2sQvdd9tB2cOWb71h1pVjVDgFGIK5CCiL4plu5AopXHOO7wn3BSho8ebJ4Z8_xdlRFAtyDPPLFCSIeQXG4Yo37lTLPtslAbby3bVC9xDsFdMdCPrpIwphDcTdwVVa4IodWKvKDVXSYE0Lz6eLyrs6o0V543Gj5qZYUYxMSu9Mf2S_8zUnHJ6b3zRL2lC344iXNFyRJo9n6EGLbu7ksoq6Y_uKeWx0KC4XZx4hiZfWiEVdKuAf_DWLQKymZsE_mPaW7L4aViyjwG5OuhnzItNlvwtdRU87hMP3v3K5CiITtWclreyN.6a9NN3iCZ57dGpRHraSUEWCF._vJ0zmFRcbdqe_ySodaD3f4XozFXQEId0idCz7BtV12xy.b.uFZ8CpW_wlvAYzfW6zOj8p0qvevcLGD9gLeArw9dzwYLF0cdzn9HA8RXAlk41E4AhdXnWz_Tp_TyjgfXlig0HmKuDKEA4VCWpgyri.ry74.mgIGvm5rI6HEpufL6qzumwnVqP_59qT1xs6nqgNhAYWpOHTE2jxlpqdl9s6PEPqLQg_4meeybE6q2qXkCoXUopywEt9biOYkF3_R4Yl34yIcQF2T2c56SQHykZqD9ty8cFlddWrXz3A3mvThhNA4psamV0CbrCTNUubYLCkR6eDaCx0O57RZ6B3JsKZ9sIULFjIpKACT5rpHv_h7GYbS2fsVZ7FE8S9qS_IDaclOt2VGPLG54Rjws8FvqAbyq6DHyOPPEJa1dS1xt5StJ3Toe6g6QG2Ys192QTqLQGrHz.6X.dIVywR1yGIsCwi1s7JpGDH2S1AWPJKqjlxOuKU53ry_3M_H.vlymgnFGBxCwt6OCTFzWmXJo2jqi1pH9hMmvwLq4DGyCofomaFuPQ1_00eG9F_LMJvJYB29Hd6JdGbJBLUW1eHWxV0t_WBpn45xCkRFHENV9.09ATlOHmrJda1lLoOqVjGznMaOOY5GSXgAKUkD5A85CMUxgZUCfwckJth.Ax8eF_2O2LWXbyabTUGkvtOvBrLmX4Snq63p5442fB8wlHvSDj4X2SEQ6qB.ncRh3mSQnJVqbHDKVuHDuYxWrFhoS.SULzcrZEGvK54p7..srRc3OJG_1sudTZsJNdDkBM1iKIFtP2lGoYogFmRb8SKYXsyerRmfjTnFDi0r056KMy4E7Tp7FYrWJx.X88GFtt6nCWJCHMn_MugIB.YrF.x6LlPaTK7wsbddxMxXmifOPWy16vgsZeQW0Py8uNE5fqB8uPnsqTjvKpbnK_.Io0FJ7R2XAR2Wzp7GqRr0HLTM24mPLHu.AD9jp4qrTur60sX6nSIm3imgcDMHsL5tnjaKRw1TZphfrhrjiDf4Tw2M4mGx4cTslmyMRmEPwhw.1Y.y3RYd4SsGsnsrLymbYBLtfCsP9BJm5jVWWjoW2tT9exassBbp.HBz1HAXpYZUpre6_aJc00MRcDm3WADVsaU9hQAHn0dqJ8YD51LmYxk2Imrww16hUe.EJHr.VzAQEve1HWUxxMnuoWqWHTS17gxOW9jeSWrQFj8VCrJcdqMp6MnMo9pt.FdMY9NZb85ATVla08w"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f4085a6f4d3b02';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\/0472639158?__cf_chl_rt_tk=yT0aXfffYBZto2kfH5eszAdsJCRvtWR1OaJaHQ9Ga_c-1739105924-1.0.1.1-VdgoKZ08WG_jWSK5LBCojHZnl6HunzN_1EONieOHHC0" + 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