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-aff4hi5l6.mit-edu.top/post/6894571320

  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-aff4hi5l6.mit-edu.top",cType: 'managed',cRay: '910e1634ca62c98d',cH: '2Pi4LSohZjNPAA.6Oupgj.EwwiuEmH_.aBcZVX4qWf0-1739379121-1.2.1.1-cfT6ywitsJeaLyV0uL72h2.ArhjGymS9U4oTe4LU29u61REP_ScKamAMOqxXpwsK',cUPMDTk: "\/post\/6894571320?__cf_chl_tk=kjWUxeL569wYF3HysMLzGmqhpbB3wuF1kdeD3IuzS.o-1739379121-1.0.1.1-DbEjJsCuYaUk9FWVUg5viP5yuplk0sSNEL.l25yNsvg",cFPWv: 'b',cITimeS: '1739379121',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/6894571320?__cf_chl_f_tk=kjWUxeL569wYF3HysMLzGmqhpbB3wuF1kdeD3IuzS.o-1739379121-1.0.1.1-DbEjJsCuYaUk9FWVUg5viP5yuplk0sSNEL.l25yNsvg",md: "m_1pwPyAIhEx_P5EzacbL8EJND6FTTL_V2sOsH7G_z8-1739379121-1.2.1.1-PnK3Nsy_gJj0PGVseVyax0tka1VAN8IeEyUZZEiijGfPD.Vp5tomaI5v.xShpjnZeNw_BRWC3MmpOefdHNADy8TlBM3JTgSjezQsEuulLOjWTd.8Y3.SVZHD0I3laDi6ktiBJDIJT6Ph0LctZDuAABuvrgsxwHNBg25QvhImE5hYV5jxMLV_BxArPKG0UqjN_ODl7JNxBeqc7RaSAoRprDU0OW80RUPoSmn4YlkoALKDy_weBd7PQ0Hg43V5o3C2ApYd65lxnD7bpKt_cRR63WmbW8KmySPfezUTof2TPaa55WtzBhAFktwt_V1pyKty2iraHO0H81vlKzJeMvKOv5OJ2DyC4OJB_j3WV7SOTGG6unHtLcQYxN1lxsvDbeQwHC9.LG9H9AYvs06bh6GubMclBEQWkG9iL9hAEprJRpqvE4gkkPRhhoEybH1piq7BAZF4fP4X_Io.xGqXUnKFaiMpLg.mRdu0Nxd2rHqUqXXzoPzDxb_Yxt53Yq_ptpmsJVRnBhysPOKDYROtuQBWArzpdM57pVj4QT1nmIjz6niMjbN7cxTNDmH8hHhnAwuivu4TRsnb0.gQPeh8hU77Qy3IbZi5F3hQasEhqNCr1XmTfFV7FVYYcEniU1cSZOi1sNcQxwO6rRJl_jS1_4dGDhACczYi8lgrRY0rLfE5Ubxp3bfllCBf3jaOVvKOI4RhybLKFLxRJUAJo73BvHodQ9u.13jv35xPtabOMdLM1xhRfnWj.gNIlPkv4Wa.B9EppQ46ghMjlvJFafzFCgbeDdWuRItqFADM8tApeiuTjt5bkyhzRWVpKOEhjBXOBnP3LtiNK5DQdGBnhqjcqGR7pDetWD3muUYRJewnCMADgWTSudI5LipJMKgBU72gfiMRdiud_n_M5TctB2Khhs1aqKvbNtXnzVa_mEY8XeY8yRxVa7eU_1cMkbYcjYTHt47nTr1FTkQF.74ThP5hrYAUf2DJcyxRLb5vUumXyFWV0zApbuLb9iqzEo_v7ZiH17Y9wVLlDAzaf2rE2GI2WyehhqdXEPMMn2RTiywsVzK.wceFzj2jhzbsbnFDB4ZdFaAFAcJ1bBOLvBhcjQa7w3u4D5C86iPZDS_9fzjiVLWZqeuXTBwWk3Xxsuk2raYTOzUv7.EhXcUk9uH63Uo2zXbCN.xRJ9TByq0elxCui2aJbww8ivB1pXpLX96avvO8cV2U2w4gDiKrlxZB7MqLavLjanO_1cuOfIEhrR8n1G07QokzAzDg1b9TeNzbkpqHfQRJEoh4.lT0u30PWIgIMUJAAwrH4xkBgCurR0IKN08it.jY1dP3rH.14vxL.2E51FElfARKNymQz4C9HoCLIrj6DGWqZJ7.zv_bFWW10kEwaJNpYZa9XY._qzjg9AxzGSwJw1ZzZrJ7He.GxHoNSjcMwal93hV6jSCZur7KyGvDnKbp6nJHrNFGWSyKRaroExNTBNAzJIwkYfWobGNRRzQHDwkwkMdjbxW1PgpkTbXjnlKbMiqc_wAfenz5HWg5LzE3M50HseuZMZvpwZGg0fqVOq6HAx1J1Rgc2KFFLBT6UCaq2ImZVhgdhIkifNF8ANuBEhAOl8zlV3y6ogeVjZqrT0Z9ZKx1y99I8Rtnqky2WSg76v2n8k1B6HLyUc_TjPEmiH4y_YuIKWLGyqW2tsCo2jPygO7g5uMMgxSkJEVGWlC21JqPQZrpOzW6M702CwxhYEcEk4gEXhG3vI_VoLj6dGBSVCTvZj0gLrcfAGElDj829HRD_xmk2y3Sn3DkEsTvyorLHvmlso1EVjgl3RJdi_dZs09V9FjmXC6fQmfM_1OzVICD0rx1TVtMXzrCvUmgvobuBdjuPjigzKSGUVEGRC.tUpnbcnvnt3vLSoeY4Bt.FFYQKLGCg_H.cZfH2HeeBinQ1IQO6mCHU4NFi3.B46iGhvKecjvpiio77U8QBEaT6p5qnVpHFj2HsG.gKkgpgVIeIqWU.Dsv2dmBIeSeo7gSHLZnH10UHwWEJ1ry.DoezQ2KzjiwCSsXyIacTgFj7cMfL_4KKLkcBkoQcX5q3JsVycrigZ6ABxhNm2wd.W37uqV8jNb3PM5rJy_4V5nHGpo16BKZNrW3dCAKsk1hBP3xB7lyUxAnKDHohBjNHMqlKqY_TkjTbw72tHycUornGNxrqBfqJAjAOOe_D6C9AdbBI3ZbUP8DrPzDSCqrBBo.7fjIIV.UNcoshdsPEyQ0",mdrd: "FNK4Kfg9jLjPaJg78E0m77f4XgkceXo05iDHO0lkS9U-1739379121-1.2.1.1-G6gczLLUw1_cQDq6joGCJAn4rCe2.FRxWj9n6pXY0SMnrOQ2qmZ13VWVJyYjvboIJUExxq5k1tblgVMROCdYauz7U66mlTgqUz6UA7aMAinKB2JwCejkw8r_02FI.gCFWRXuQcgBPTk5bYErb0.4KHiPkj5MwlGXg.ygbiqHBi0GSlzC_.pzoG4D8pJIwlf82gJyy6kC2RLuTGk0UE4Y1MuiIkLlltHD0MCQtMC1M3S5V91XGxBp_T3TWMTc4xOhzbA6GPvXzBW4uLxK1nJk8q5D7uOdme3enJ1KOEqrppGZeVqZTS5SWjHd5KcafcjSAjzMQp..NCpwCPjoBNqBj3RRLyimrVu.BgB183klwfLZypw5IjkjSqIWG5_1n0DV8fVANfYDKuHOh5AjrXChhql4vqH8ZA2hQCcqoc9kHmaRuIYm9XR.lHyVVeLx1etU_VbvpovGM3KQIHJh0lKKB0qbi6wlJ6ObXX.zFyCtYrQX6MoxZC7Q6CcrLjjS1.NY01.nLjpXoiaC69YWquY8.ixXOqoRKnV.9.2oNINhzY3HG2zWbhM5gpW9.OrBZHp0WajFu2eylPhCbRk7p3RM94YLJ2agAiW5IRO8gYDkM.PRxPmYDcMhCjhauYKdF7w08tgvX53vR8yhEJ2DpZUqIcXq_rH4UMf.FPgh0ypM_F5pd3M.xqHl0wUInQtkyiJfLf7Aamf19yXRlI9J0EpyxvluwoVYAYsz6mS3WU2C3uF6Tb.9vJ0mhsY_9yd9U18pHgD_wQLjRtINij7HDntF.7MIgX.PBBj1fqFLPWN3PM8D.aoXTLIIdNtbkYgdN_CirZpNrFiIEAF593f0mYm.iySTjymmFhNBeEkOZmJZ3eSAouOnisLGmkABx47qjX_ACm3TH9PdSftxArV5zQtYWgl55Sg5I29cm6T0N8D_1GF6GLWLYX7S94gAw5b4kjVKp5oqDuPh0n.ExZJ65EK0HunZYPqB_1IJo2n.ut1Om8Y8.yxKXP2bywtjxBB_a.LMdTY.MW1pCfyI8DzxuS2wEbxVXqiwh18eR20IUQpbZSOEwu90f1LIslR6bO7NdC9GugnxpL5s4ToMkUQ9JK0s_ZqA78J2DwCsujLGOTxWugt2rUiPh7xTulQ0EFOdC2FZWni2j0UImNjwN6DpzPi0siJhUVnJVWy5u448wZ6cqWDeKVbRbTPYdd5dREwyKJZCmTE_0obH3_cRVw9tbey4owBBMSyUJPwXPAsNO8mRd08PK.0VqQV4yiqVOt6jr2aEdLakTM.zLmPVP7GbVPhABpHhpVhsBwARNLkHHia_rphN_GMCyPHFHoHAdpLxzP5LnX1w9vrjAE.o4KSeB24_s3nS.5u1tit8qMFgwhdXSv5Nns8RJWWfRmrTqpKtzcE7yuaSLpVZwQM9dXbxw7H_Nqn5sMLeXGGC.4IriH3S1TDfn_0j_0dtW06inbS.VTuNGLe2eKlwhfl_X9ro4fVzIxG6_UjIh5bxFKvH55hmtMNmv4jli69YHbHkL8WEGOwdq7HVOo.bjRZ6.zy3pBWN8RhdbeVQ94mlGNWRm4HWOhoQ5P4tc2HwbFdDADikV31y5b3KOQLfQJ3wlv9kE46JLkPGBQfDyNs4UchduM4GvWJXSTLv.KPiM1mwITnNZbfegFzAWhMUfU8TE1Xk75XEh6urMKj7oeJj.zyCO00CeNmNjqSEBLz3bhuog6okWl9AH8TK_QlSHx5NK5N70bfLDYIkRGqyCKvwDt9lqShl6Bg0ZtrXT1miHzxvG5BLjkCqR1sVFmLpBBax6eCCOe0dCQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=910e1634ca62c98d';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\/6894571320?__cf_chl_rt_tk=kjWUxeL569wYF3HysMLzGmqhpbB3wuF1kdeD3IuzS.o-1739379121-1.0.1.1-DbEjJsCuYaUk9FWVUg5viP5yuplk0sSNEL.l25yNsvg" + 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