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-affb8dc67.mit-edu.top/post/9280471635

  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-affb8dc67.mit-edu.top",cType: 'managed',cRay: '90faf140ee9c59d4',cH: 'bYoqBRFEE5DKbzo3.6tUMHmbLxQtMftzqhOIT8_HWfE-1739178378-1.2.1.1-xELt3sf5VsRBLGxw0yZ9M8520JLherCSFdg9szxjQwK5MbbbYAkEXuNEMknOY.Wz',cUPMDTk: "\/post\/9280471635?__cf_chl_tk=RbPrK0ah_fr9PaRgdwTOcG91KKB3VFXr3nZdHM0eKMg-1739178378-1.0.1.1-.MF5r07uwJeTQy68BWwXoSDaD1FO3IS9tWvABXIGCgU",cFPWv: 'g',cITimeS: '1739178378',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/9280471635?__cf_chl_f_tk=RbPrK0ah_fr9PaRgdwTOcG91KKB3VFXr3nZdHM0eKMg-1739178378-1.0.1.1-.MF5r07uwJeTQy68BWwXoSDaD1FO3IS9tWvABXIGCgU",md: "_I4AErckUiMqQ7RJG4pCkUrHEFiGrBgJmYZ4ODzlLcM-1739178378-1.2.1.1-_1lscifhgNVgZ7RCHEgiRUWgU2Z9KW9O.qxtZ_iRBJX3YjOeHniDubSnHtJPV20ryn5YIgKvPr5PYD6MPZkSrcBDd39lKzpd6jv7uoYKxERuah3e3i0rEWd0InNIVqcj5mjxjKMNtDG4h6xHcjqf97FEK7cIBy0jvP_5WSZkDMrXbmRZ4Ot4Nb.c2x9o.eNfqvou5Q3HAL2iiDN5lqgHuHDB5hQQiJlolnqB_TcHuuty9lNdH9DCgNArVBTtqAI2vJI.sCcS25uOWtr.6vlMpFJvTBVQ8zqFMafz1r2XyV_lCKF0PBPsihHbrIIFtjdWXL7XowOlR9HSuTyDzKsYuY50eQzoA0cQtsb9NIw..UUMQwE6560VPbGxbeft0t9Bj6FKCTkZup1qsQYiQIU9WeffV2R319QX43c3gYUuir8L.oDWVNxPxRl.BkQNyiKpAwTwh4cQzUvNdH2Xe4gzoIlwaCAEwV5LUoVaMIMBKIQP.Jozbwd8PmlXNHfRvyKHPRmGa9npe1vsKEopCr1.rVRY0onsK7MVRS3luMp.xMnOSn38hDbxYrjuQN0J3AIkfIubFFj11REkMgMdGmQE5SfJpSURQQtQSBYmGnvdU72AGxh7XSEXxhRrBfxTikj1flU1IOvXet3.4ES21lot01Ze3m32yRnh7K7GK6CsgC.cOlDvRzoLx8KuW5xbsqxheTvcj0vortchTo4CPfu9qrWqTJaRLcCIXo3pbaCcnBDsyVLSvv0e2vUr9a0sTV_CmkzOMSHf0TBnV0hMfV2erRMO1JVrJ5webp5V._mfMQ2jVaPm5ric.coJWEjKMOURiBpqxdsdFELh3fMZmng6aWoK8tRsKpiKXt1O8LaDX2Mi55OEkhYWnHlzwZEnnCiOPpGiUzGdus3P1gLccw0IjwK4h_sPl9tnYrCCfqbll33E2maRrboodSgyjGfzan.dqr.q6FYTAQcaxrmR0BS0DhQa715qz9S3APFSzST8UIY4e374UiecvxtGF3db7cJkmUZQIAK4aS2gBSNSi3oJavfWvey0_7.VIdDzYM0VPdC_q8iULDPCUjmTldSNDXDbEDJm8aaltQN6g4y6qXh5NI4wLg4m0StyMrayDVomgAHo2xB0Z.PspCeybuN8_5Ldo5L8b_zgirkrpEAl4oBdLFX9OxSvNcRL3ntfiAl90ELS0TnQQ8NSy5meNtzkD9YxW9pKQFGUZJws0Jne_jvNwZn6L3sxGGeW9um9SjU26W9eAccwKOmAypSgF5Pp42ft41n9WBVpBmFCXGLwGgnX1YK5LkIFK7fbDFcIg7IUMfSrtlhiOzhcT.9N7wYFfZUVL0DtGK_RSgm36TLkp6oGRjCYPSoAAhL5VxAeZ6Xm1jGJa8rx5aNxLmB0MJC4lDp62XOKqMvzH9qoiIRcuYvCwHZ5AHwByZ8JEj7PjGDSoV0kABSFDo3K04UN162yVqqo6HarZ0DMKRneRhirkVWEAQV2AzOSYy3u30uIGhZTJk_IHLPwHN_LQMEKYZrPX77FX7wsZMpJXJP3kykPMExN9rXvpwE6g4VOFMVDB0KfOhrg4Efnckd600vz_wj0FHoAPpCgEfCqvf1t2zV_y7I_0YFfDQ_Nc8bexPkEVShH2vJ4VLIAEulFoFJfII8p2r3g9FTaXN2B2KiNbSfhl.H1gxu6OUhr0AZyv2rrrGUuXmBIMdke15eExO5m9Mt6Qb.xJBtIV8Rp9VfQOUUQ2WNstDfeBFO19pZWqLjOJjd5Nn5TokkwZPUcE26nhZGGpFoyP41a6hqHlinjWKvX8kbKTacpKuFfBOJcT0MT6T.2t3F7X79NMlspUfW7C5RntQNBx0Ru6XZzmHdXhmu8J3.L7C1YQA6DtNv0o4t673FXIOAo6.NMPmKI9JVA4PFx4J88xhaEU0ZB55PK9L8sR7MbgO94qaXEFUnB6SP3dWv8Crs1s7rf5_LvhH5wcFf98UWwkNkXJ8bQLRHI91ZNCc.aPUKa5vP6u2TCnS4pipPm3d3Qd8_XHJ1a6T2DW.yAJ6jsNTlo.n8_VotwA0nPLquP4Viw.X9f31kJZXT3XaYVLsdfgeqpuVG2FUTh76O0fidsQSUOVryRghb9M1ckRl2IlKRvCmfh2F_uJ5kB_06ZaJdQLMJWXFkl1IGGe4j5umc93PV0o.bxxBLNQHDe4_ahet3k4E.T3umdUV99k8O9jxUly9TmnuY1.RANUS4Yug2l",mdrd: "g9JUii0be2cNfkSX_xuWUQ_PAAeC6kD2DPYA.WvdslQ-1739178378-1.2.1.1-Tr7jr6OnHdHmP_N9OYF9l_yWEiTEYYvjESCHGAtBBJhDL_jxV56DfZdgsVi0P17biq4TGdO5LnKPFc7wLWse59sHJiveIyvsEsv3dXmJlbIqWhBHGaFU8.xjk55Cx8pYBizZWAffaUiQV3.VhOZ7t0ZI4Y4uI4YUzs530h7jEA_jtwj9czya3LuiJdYEHy25pVGEYwokAhT6Ph6DqaPq8h.fdDCe.0WEk1AAAacZTAdRrFGY05z5V2bDb1WJrNlqC_UTtpswMwg_rEwI8SWXsSxgfSIWzsY8wHSNoMBdoAMpbiqNuihtgyTEgZGSYCEB4ApZpwoEv30LnMk80sqgQruB_jObb3cZ.nV7QRvFEihCSC64LNJjwuUU8xtHEy4jQyzRiGFc0z2ALNa..Xv4DRrOw89olfYEbvZ.UX8E6QrquvuFs3ezA37D5KYspglZj0u2OYEBbGm0utByuMhOOGBtRYU21fX.ZwCKJQlRxrl9lDpF_M1aA8PuM3Dp66bcSb84NmNKLnWNWm4.6F_BJUvNHlhK7whYFJri3wrwm19U92v7eDcYOw4yAQ4s1tdH4jJVBd4dSIwQB9NDMs2qT0MICWe7ADrAwtNUmLdADiuRXKB7eVH_.aWICjKWEZATLS.lL5BBbTw4GyYiPVD5hjtt_WHqtBBKNtOHW.qjBRGmzP4X9_pyyXh3FikQELz4jBKsxI0VpfjgKuW3ikU9uU.WrAOtmXMHMEAFK5CxJIqkDZ4JKJ8rHASCyDLus92905f4oEobU1i.5TRhMhMkKl20y3RsnUeo5pOw2aln3LMFJftovLlb2gukID2qbCORiVy3sfkT6.4lEcjPVy5GTHThCdj7FzxIP8UanKS6t2ZXsDAgkByq3_4AF6hMlD37S5atzXTtGAuRi2oXL3AzLysjmqXXsg0u1hYcdNctNum1gEPEV5kARgihj00duTgvGGIbPojYA3a1_rjJILEsrJ.FkeYZhXVi9lgkkHIH39i5BXDDIRoO.wSMYGuiL0NFIO.KTY0K_1bIcgdiROpae1RFC3wb65ihnPY4S9hwmWvwOnQH.NhHHWQGFt7N.BMH7Zge6CQ5Sq0VPWUKg6OintIQ6mbOTOaSF.ekdDYmKEkqzJXc4MfVFR5C8d23ud8EkEm3jR1WyGRy2t1IPIjheqnzWdeufegrQrKI38_D88YsH_TKShnPS4Vg0qy5sTTFH6NUhYhJz0pFB03E5N.kvW9U3SAKQP6IY_YmmMyaNzdcXGQ9vSI.yQ9znpKRQL.sO2cuMhAWEKBF0_P5aVeasZEra9aj2faaLShy6V0Sm_NejN4ir9xOmf.N2XYRAzbhE.50ybRSVHobcKTbF_m5eixr93PZ2IiGFTNYKDGov__w251trdtLfZ1kJxLa3SVj4nT1mWK4G0AKDU8EGTbNscNoDwoXlVCJnNHhRNl6_GhoT0wXaSOw1X1xY8BQkGkGRnHKfAsnY_3MTSK4IfXfVLOUDmyzXDDbJwqE5l4XzDojVut_u3kPjiFDyyJNyubiGJvY2c53vHJ9ORHjM3xrlEGBHGa1JalsYH7MD2TFoppqm5JE1Vfom1WsIEwCn1aFrNhW_pzBqRMQR0PD0SfzEPameBhBHMsnm3W6fqg_DMT6xWb7K3wbfXjKCadlVGj3BalYTD4PkrNHhGyM47NckNRWhgBcxNS4cP5vcF10.ksmzK8e_y8NKZmqjkXhfeVTRC1IU07oWlbgRIZWq2Fk2QK1DntlrkDb.dgvpYfjuS0DZ522NJKqRkAkFWGd9EN0reZVTD69wAq0DDy.kRjnCc4QYdqDUalUuoPJmgXMdL4"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90faf140ee9c59d4';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\/9280471635?__cf_chl_rt_tk=RbPrK0ah_fr9PaRgdwTOcG91KKB3VFXr3nZdHM0eKMg-1739178378-1.0.1.1-.MF5r07uwJeTQy68BWwXoSDaD1FO3IS9tWvABXIGCgU" + 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