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-affk9c6k3.mit-edu.top/post/8197205364

  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-affk9c6k3.mit-edu.top",cType: 'managed',cRay: '91103bf3cf6d9c6c',cH: 'A8r8w.tYpHyE2naZklqnHx2ypGD42ykmOEETVX.RDNo-1739401639-1.2.1.1-PzPB2nDX2peCeLSJTdFueFlEzGbAgbRk32u482cc2nYjBQcaiEELQkGWz.B_c3gJ',cUPMDTk: "\/post\/8197205364?__cf_chl_tk=2XRT4ru8T0V8557PGi5ix353CcQa7vfbXUT1viUKceM-1739401639-1.0.1.1-PsL4tjRT6gA5i5G5rKDp1FyW6NGePuwhgZttuh7zKAw",cFPWv: 'b',cITimeS: '1739401639',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/8197205364?__cf_chl_f_tk=2XRT4ru8T0V8557PGi5ix353CcQa7vfbXUT1viUKceM-1739401639-1.0.1.1-PsL4tjRT6gA5i5G5rKDp1FyW6NGePuwhgZttuh7zKAw",md: "epPR6AwoLY7eq8DI4x21_a2mqI2LrrNz5bywg5E.U34-1739401639-1.2.1.1-MkejhXBKEjnfmZxjbUeR.CdQcrQg2cjySMEP5GgbglxX_.kFpvy14aWc4OHMfv1LBUxWLYA3sxEkFA3U0uG1mSugCQN4DWM5dZu7OErIwUv.UgCdB5bx_a_uxmhIF7NJkqn2INEVseoq5ss6vWipfeLEMpfZaRn3stVw3if6rgcIne7PA7BI8Noc06_rQoqs7ZM_1bSFF.p58VfQI1mQJ8K4PX3tJLRjUyZxTQQvQMgZ.u15FZYvfrRvwyS62Wutq0bH7nNQRD9qylR404SHoSqEXo8JM_.E6L0U_Q4mYJxTSkB.TGSNMXMI1B1LmuuYL.ya5Fz4sef6FFpvnZmD3AZTTfWUzMtyu07k9vPzRlm8rAp4q3Fw21mc.b_dgdxeMhV0NA7AKnmiJvbwp6xlpgdzIB1gczPbmk6hVCcUFHVTzWkmRA.3VKlNY2Sm8mMFuEFC6vwN84FGEiL1yPIXKOo2eP3PsjK56v.ugAoVQcHD5E4RqbtTBWYask7v0qzKdngmbAugXrRxt97bcnhbC58ineysS37OFpF5oh56YrBEIjXVISUP7u87za1H_iiNkBsQyfAhRIlVpfCIZwsM0q8y7baFhMV1msmhplParviM.0WVg4EMVaZf1gsPkpDUoozKd1_5kxSUXIkZvq0shqG8l2mV1QkU0SezUkriE5IaG_utWgKC74jKby.4veNVSnXjwFXY..UEOg0VaniZEtfgC23ONAYyFrkc0IsskqeMyYtmEZEYCqCfyRwphEvPJCoVq.01svuoXR_ishVHGzEiB.ULmU41AtPLHu6.8PzoX9qDQdJnZ0A8hC8vgZ6Sn.VHNsCWuQrPavfbECZFnqveATUo6Sq8X4jntY_ghgQndg4Dl7FIidVxnip8pTyCcLkdTHRQzW8VcaiMKK53QggVHAmo5bXsmw.42AnWwBEpTx_EZ2GsY1hjbrSO2blAZv5_jZm4ZNdbq5yU1XwSAeP6JFwhXiZzjDaXhypTSj8Vft_ZT1JLYjQK29kwzMXIzaz4DWMRqNEXgU6CTT4joFpiTdAl7I90q.1B9eNkKCbJmkGAPCCOAbnc6kgjRPOtv.qfMsJuMkgeqh_MnCmxJ8125dZ6v3RE.IyOZAmgc15.mFq7i41dsEkyoRqfAaLMCXXchwEAuDCLJo.VRonaRhBoynJ3fTcT3zfP.MXea3fWBajRr56cM64wS1qAGSKak1R781HW6HdIOQ.ObaXhfT6UUuWVrRHgWQYse79rYdksIAwEfl6aw9NZhLv6cX8zVgejXcvqzoVHL7dH9mI.2Asz1_7Zaku5gjCOaQxl8NBrC.wb9yAw4VHxsqPWjOR1xO2xJdf5eCWZPbshLK64UZnSpqu07BXTKCDnIoMIKZCXo1nOyvv04DlwalQibGqTieE2VphOSktRKOdd_wUq6Tnv4TnJ_KUj2u9h1ysBp8jpyLb.i9i.Y_UIkoggA1FmkID5IRTsE1I0Vja9Cex_6ckO1H5fibWSxqtAvrsRezdpT_IXPbWhdJMHsSiDIEAvwOvMrr3RB0b2WEcUh9Yb_RENTfNGz5RgahHdnhGOoX1Sw9ScNt37ul5uKidl0dbuDbSVyZNiF8mgVjsxF.cl3Et23hWKkMSgipHnegYTpNvV8SOK4nhiPTnhe8yfEjwQRQ9YffmfoI4_9xcNtMOzk._VoVMfhkl.ODDPhSDQv8xIFGrOdivjjBoNLRwt.6ICvUOZKL1u14g3zuZf4v3QQFOcDK2ZYz4RnVSbc9iSaybfGxwY7ahuIiIw1a.JgSBQT2rCuKfLx717UcR5HAmbFmp2J_g4tpWUQJLkgb95DJ5tTh2.hZNHws4EbG8paPmvCVfnFJdDjeyHcfewHAK4.E7EEru1upv4hDFpEBBGpF0D1A7V6azze4tJHpDT47Xja1ISTQdkeTXYXHwbWo6B2GT7IX_708Es6WG3uglrYdwursBe2NgpkNFA5Cw8P85WbHqYDjHmXXjM.L.QUNssOPa9Iw.1nH1gOgQKFxTL3OZUFCUSwsmlQP3Hilo7E5PZIe4rcmtrHvR2TKnf60Um7UgXX55dspUphIHsdMSMw3x30.xMPxz3OBtg6uARwlRPLE1bDzVBmpM76E8Q8AJFfUvbzDrFj6KP56iezRNOHDWFJcK2fYfXVDQ2UtQT6Ck8Zjx3fvCXrdeQ4Bgds62j30gtdmGdUP8up1VDduJ2qRBiXOk2OfUlRrDqlVVhVdcE",mdrd: "tbXujYuL5w8eLvvy4nIcqznfHhS1QK6gxHgxZw9hPAQ-1739401639-1.2.1.1-ib_3e8GKqxMuUGD_1kug7FAL7KH3HcGzV8pXi5Sxf36gzldaO_Bws4m_Ih_.kb6fwqzc6BvM2aLyBOTsTzqIjJLWkd_BS600y6raJgozhsZR6_fO_YW6.FtltzyHuBjnfuNCh2vqguVF9osfy98nuO6AVuBwHZ_KYmdwO6lxeaCMu66ZfuP8xJJZgORiUMJ96S8OqF_DHFflM4TS7_9axYyAMlAOp9saem6TnE5OE534QOXgEGrEhnbpdiTm1qv.1CdcSjEUKXNVwPebh2EaRIX3WDuKKX.mUXwDGIvBOH8xqesu8NfsS3J2HexeGl_mTpYndmQ3iSNF8IbS_JC2WwQtjyYgk0H4kabpHFO530YVObSZMMJwM2HyhCoeyCo3_.3JErr2fh9y7tG3VwdUyuDPea7scURFP09rj1GIVbyGvzxjdGFDhJfvADM2_GMDJ4DIJl859UxqsQfL9Mi1gWZMTGkmtWsFvtUc9GKaCR4QwNh4zvq_8B2M86z4VaeoUEK8Sn0orQBv5ptZmd7c26wX3Fp509RQJ5suIt4L2M8zrFzKWkr6K3zF.MUbu3Ih_2_Rs5Bp70HU6l3YXyWgAI7AjgY5ockPV25xe.aUj252zfmC2WqifsEk3FkgrmzXJq2D2CNX9jZkV7ytX7YRFOykfWC6T6_Ku0ZNuxJQu8KQMPN3GVTX90UnSXzfEuv96xSztFvedCv4LZYtrirMOWiXE3.t57HMIUtoe0qNegx611j9Oy9w2MgGoBornwA5VjnXAbD.Gly6pJDM4oqjiK70_Ki33lKYntQP3bG39L0_qI_Sgl0aLXprA7GBTu.0002In7EuWsFVwLBkVHdFBXFqIGr3vsEUlmL6HZrrf3lPqpXITIWpTU5UIYuhWONGSSSqz7BdfXdEnBOcEUf5soNFVYpMcuIn.PVIdklKMzRabkvPGjSuoVeNPevZchMoYEl_AbA174JKf8aZbaxhtNod7_IaHZPoY.5RZJIzoEFdisJtfu7JSMZNTZAhwN5hva7h8cgU7gL3twQYu1_k9l7rXdfBgc4yU40D_dtANOHlZw.aWMvN0auuLkxZcLTUJ5hmW5UilQCG3j.nq9_3zPmPoeCeP9IsLGjHqKPbi9juXGF7T6vVR2sGsK.KBTWrJNUvEb2N6ErlqPpT1igE6ZofZ6JsDPxJ_.vY8PUdnlMZTAD6KJmMZuai2acVDqYaBgXZ6BzGDO3mtU66yzD6LByZOs4X72Wz9SaAoZCv9DDlXRCOPUC3sIfKUdHZtrxLC5bPveAbBBaPp.gOynwtN9b0C8LvVDfNchEOH2Jq5L_JXVaiUOCK4WseOsW5EISG87tSVptEi9cjQ_hsMiFgHE1jaqbitcanFk_gjis.PbwURVCRmYacbUPH1NHy0c7gJNfA0h3L4qqsT7g7pNkgYjRUxCdy72BNPrkd9FV69diC.tzfxuGH_QgLLeiUzXHFLMZ0Fuc8V.xVFhoCvw5Yfs0P3gBMJIfNxK2h5n5RwnoS4nhyWjhWltmiKxy8EajdRN4wQh3_DooZ7tYO4EhkHSL_I2h5ri5P6GNvDZFuloCnSjtJ601tworYKVaFvl8JVfUbEc1eWQJRJ6LxprKJxFlQBdT1lhyUVGi1m7SpgOYW8KK9Cr1rjIC_rYXNtv2XhonVeaToV2gXDLSNcStPcbqOJiQr8D0lcGcsVF4oijcI_IZlAD2mnOOvA07XY8mciXztdojhJKAHsbXONWj7Jew5eynStUKD5AMoYP5F22mjT8Ly0NdA6Lz6ZOuqLkJp2LQHkC1EB02bdVXCap_Fvg"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91103bf3cf6d9c6c';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\/8197205364?__cf_chl_rt_tk=2XRT4ru8T0V8557PGi5ix353CcQa7vfbXUT1viUKceM-1739401639-1.0.1.1-PsL4tjRT6gA5i5G5rKDp1FyW6NGePuwhgZttuh7zKAw" + 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