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-affsrr4j1.mit-edu.top/post/8712634095

  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,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMiIgaGVpZ2h0PSIzMiIgZmlsbD0ibm9uZSI+PHBhdGggZmlsbD0iI0IyMEYwMyIgZD0iTTE2IDNhMTMgMTMgMCAxIDAgMTMgMTNBMTMuMDE1IDEzLjAxNSAwIDAgMCAxNiAzbTAgMjRhMTEgMTEgMCAxIDEgMTEtMTEgMTEuMDEgMTEuMDEgMCAwIDEtMTEgMTEiLz48cGF0aCBmaWxsPSIjQjIwRjAzIiBkPSJNMTcuMDM4IDE4LjYxNUgxNC44N0wxNC41NjMgOS41aDIuNzgzem0tMS4wODQgMS40MjdxLjY2IDAgMS4wNTcuMzg4LjQwNy4zODkuNDA3Ljk5NCAwIC41OTYtLjQwNy45ODQtLjM5Ny4zOS0xLjA1Ny4zODktLjY1IDAtMS4wNTYtLjM4OS0uMzk4LS4zODktLjM5OC0uOTg0IDAtLjU5Ny4zOTgtLjk4NS40MDYtLjM5NyAxLjA1Ni0uMzk3Ii8+PC9zdmc+);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-affsrr4j1.mit-edu.top",cType: 'managed',cRay: '910fef2218827009',cH: '.20LcluS4owBIjMdnJGSFL5qTkvM6jbqdxjnc8dKZvo-1739398492-1.2.1.1-97Ugnc1_vFmCR5k9djuz.k4ioV_eNOqJhroBpzjQI2y2nxKZCRBxaVgtU96X2Mto',cUPMDTk: "\/post\/8712634095?__cf_chl_tk=0ERy__iPwUN_.r6jPis3kdLK98PS4dZyctyUniFF3oY-1739398492-1.0.1.1-xFe70AdaFRQTebwW3nNo7htSk86n9jxyT2qk7NAqAK4",cFPWv: 'b',cITimeS: '1739398492',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/8712634095?__cf_chl_f_tk=0ERy__iPwUN_.r6jPis3kdLK98PS4dZyctyUniFF3oY-1739398492-1.0.1.1-xFe70AdaFRQTebwW3nNo7htSk86n9jxyT2qk7NAqAK4",md: "RkqOurM7UAUKh5kqeWdTBVoyK.ljK1Dw44NtGxNtbHo-1739398492-1.2.1.1-XNRJekE8MXrkH4pngk85Xe6Bk6LNa_s6627ZzVa2Elj5rupoj0BRXWb63IF9qIeT0DH2Rzl1mb5EXnEqVWYoahY.Nyi9OnnaGUCtqiVoEtJpLX.T3U3klcYu0bFGQozY_vWQHHzHxVDEZWcoYs0ZAiiFw97A.HHxZWrcs55y1e_a.p3CJGMSEqzHVnI6DxTJX4OL_niJd18HdT4E9P3YcCVQVoYW56fyuJBIT3itcE6HmK68WeLIRF4L.jLvApqyPiDbxyDNeEgG2LivMybM7mucRX_SlHBjFh0oEAwStdqxz9.CutsRnpBW0JQKkAjl50KGaepZC_yIWPt6u.YFAQae7yaZhxUQXSw6NO0mWSx2EOjKWJerzb5n0Y_chfi3Q5IKHf.J1ZsZ.I7tViKflpoenupmOMpMbkmFq9elB7LRBZGTogs9S2MHvLPGm4fu83qZN34ABPH0Ld3nFGEwD8EiCRwSMjLljJJz0C3gJCGqD.E7oOMBS0TXlHuU9Rs7pXwtPr0YmqJDKM06ClbA.zMdjysBRJl_bQCuSY_MWSBOxd_gwMDoiApYd2LriFQIEwDa9amELqd2DT1pnCUIxlS_lvNPPALoHf_z29dqNJY_LmngVmptZDxvQE.fSV_PEMbyXH9FV9abgFWerksuDRGQEder3OOc6v_t51h6VlIraP7Uq_AIW9gjf93cSDTP6tUEochpKWPoq75At62X7d.R5T76JNeIrkDQ4K9u6YIxMerSvmVnzkaqwQdmpQjNqpSzKWDJKkkzUhNEtyXaau1MIXlbSQTExcZK_rNZbg68TdbTdOeTO98wpMaTuTntQCbTbYJSEe5KprZmJY_FEAXOD4dquzmNeKLYrbOLq00Zoiv7J4xzYJSwJ2zSr1mmyzV_adnbu3Z4cxrikjMLa6.DjWg2GjBDw4_Bqe4LdifZwRW99LYLIFBJSgZG73aa0kLpVnZck.CPeNoTm9zkXkOq3jDva8.vbQuxzJWu2e72D_3Qjp9ldPfG7QYUbis.NWgUOpGgjHYy.g_c_Fq.WXmHU9Fwf7M.4ICI8JFZp61AFpfhRVlIDTvVdhd2FAiG6vM7rpyNH8Hw2dcjiMJJuwmvSfBA9ENT7iw2Z2eseAc2044SdeZ3wfd_lfanKOspoRtlPf7ZEcQXca3INklMa5b6zs4evfWTZUCPiHEpkrXGkQ0M5w45wtwp.tkmIzWJBi9MG6ghPI9T4Hq8LqAojgpsnicOsXkJbW4Pt_H2B1c19vwbXiy6OG9GSbYPaqYc6yHIxCw4Q4r8hrEkv7Uu__6aEAlTpDvIwFi383hP..FaxoMuyr4WCSVXrnrOrKCr6WcHU2ZI6MM_Aknx96XUXVjA_hGlWjyjA26DLmwdw684UlTpTMRYURzza6BjW0XoNyTNyr6t7xaN9GQjR.i.xrk3ZAIMcIJl29gAsKndOiLIlxUumLAc8A6wXp.T9swfhi4k3gjZYG3xOZXbDVuVX6GDWWtn57kE8OGLXxoKcD_6MNiWajnNJCPSxcmcICJxz3wklRdfVchrISS_jo4Vs31.XX0QOMt0qb0sU0wWo6H06TzWOnDaeRpOIEkjgpY.Vmr8Qp3jKY5ZXN13qiNB6e8mvdToctWPaqlUR_JUbR.4DFKyz890MwzhJVhHCfng0MGdIrCGNt3nHQVEZcFwcUeE5zfXw.Lub9fvzAJ8J8rev2NEBqR_Keo04Urtxn6rOcs43RIh9EEFFupnHL9qTwbOSTEUoJZHQFoG9Ilv0vrH8KQN6hJw903LooZ6HotNBMoZvrGt.UjByKeYODJM9CzkEDx8RYgjJrWFr0VpkIN4_iIvnJFkk13nfYggZY.qJ6kY2H0sO.SRZzo3YLJTirZ.cq2DHiNGnYODm7yQxAcfPsASHwbmENwoHFa_0hNTaXtCXlkBjJjXdEkVxHe4HIGSLy_byfS32AbmU_czJs6xLPtJtL7xBcicFnfTRQsNBgUyY2BZVmUBuUI5hq_jIXSLfqKdxX2O7ZVZeGutwTvcW6MQrz3VdxV6MuFGhtrh7f3glWT1P8t5xZ81IOOFZo9rgJDh3TCkRsrjODiGmhnqhLcT3dQxjhBqX2IGwN.meooepHCdVTvaVcmoLjz35sdK_YcyqvJ.5eleRwyWsG1_86hxMB_rHOxMLfSgNNFPcXHgvv0PlQyK_Jr_V3dZO73Z44VwmxkcP0fsArES4EmLacOEJwkQW1l4AZh_tXbP",mdrd: "j38zmCU4LAJG10onikru8NdBANuSq4.ZAOwK70RhNiQ-1739398492-1.2.1.1-cWrimn74Fk6Rd2uWQlJyj3vNF9LV4XUu4ZZRwhD2_4IcqWEXV6dhJ8vItQoa8NgSFEvZATV86piZOzzlnkCyQIu8M.q0VflfL_CfHErJT8OCjIoZFJ7ww98P_A1JvUiSP.B.Vn6gbPU6N4PyduGxcNLKCWa0S71x6QCjV7.dedrBXV47Hhtgkrj7gU6IEs6EQyQCyheTdzOr.7O_V8c4BieOLsQq4X5PRoZ8pfYnKJjmNY.LBcjqXfy6jUtL9aWREfdQll24Wor.AoOInrURnthGoaap0zEtdwPgaLghrefPnOWLnHNxle63p.Io.0czYS4vOLo3CnNeVD9AtqGOsRalvyXqxa9l88IhbRtcpxVOwMH3kGzvFO4yq5JPk_6.Lh3RqY6k0pMJPuGLHOjHSVPUbFegP2L8vI4kiaAOjA_KrVGcxsZ82N9g1JIu9H5hQ6QXpX1BTpmhtrebbc1bNEvXz65Ap3ywjaf36Yd7V5igukVjs9snQiTGy9PWtFwzZwo.cIYL8awcGppsUKCKCLM9TBgOjduIzm2D6xz._UBjaMXrwCN4QD0h_k3zHNbiEZHhTKNfjKhxDPb4HYc7NsQDl4mkUAVP7LGkOWFBxAi_Y8w_iMGXIf0kZ6CJOrTmBkjFOaMYfwGX961LIvCnRor2Yi89gks23Nz9L9iKnPqtmbC8yxKjZ6kt1m3v8cXFw0t9rWklfB9GCdc04yem1HEzsW4gp6WvH1wkCpCt4gTfPbIgN9w3Xq3Z8b.JnJaoOhS4SUTxkRnn0GzrsmI16DMSN50950KhL9EScL73AMcqjvDa9j8RJB54qLPUVdv7EkI7xD7jR5Mgp7pKvAzN..0ddRyGkYxtCXy.Fk3Vn1cpEJafugF4CJ.52FarGF7LQmClhu7_n2LyUt7Ob4kRJ9EkfySkX33ym9PF6Kgxle_pcUI8vEU5kq7fDiAz4_Bj15xQsO6fMJ2VeDB4u_1UteuUmp5UZZW09WSZwRA0NVHg9IsoaAKRwdpWU0_dzqVhsbqZJFvvLyZUtHSXgXy86uECx6oKLgZlWX1TBwyHRMoGkjILYQRb_dkR5PGCNY1vnYO_Mr5PK6x9OZzRChEkXSaH7eHVAh31YppmLn0bWjfyiShYul42gjLtEJ8Bpe6REkxiTCHqG4gYAfD8CBiXcErUa4vEJoMDXgaECLZsHOFh8ByFMbFtVHVuwV0Wu98vSE5TKN_YvN7Kv9U5P1QK5fItWPCOMknHiVBdgvI1olFqt4Hte.6F8QKz4.3BPjUvIsqg3L1fiACagdeGwGUrOYUUj1GHfFb6_wp4ysVsDSD55.IGjjNwWaqkmy9WMrEU.Iym7A.f8aukS8glB5_CdJ6BGfjsXOlo0MdT6E83A_XsJ9m0lxnBSfpGCEDysprr05BFfekNMw0KVSbUPBkdH5m2s7KgST.Yw0qpIRBsh_zqSVHCKcy1nzu6TrwXYdSSX9NOpm4quUfFdV1IdEoFDlGDszfvo7UQA9zaq_Of7foo.GwurGqPDfleBqwA3ag.PWUaRZSZ0xtpvNcJdbqA4IQGiPDihLz80x2xAizrYI5Nn5KPepr65xYP8YzS5wWLTJOMTsPSqkmyjrZJZjUX_obzuEVh8n1tw1aZZwoeZOfkOZH1EkKGo4ZgPAUq3.kUEYjfcfVnCB9O.49MI7iWBg_SbMsx25mse6MU8rTAhPENU1m8D6IP2L7.qNmeWNhp16GB1Y8.OtPPa3iG9a.6RkYomy6ijyecTFGOlMa8eJ36.jrwhxDuKZKuRFOcjCbKuWFsu9FSvlF46jwF8sNkQ4h1C3jO_JqYTkPN_oGUBqY"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=910fef2218827009';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\/8712634095?__cf_chl_rt_tk=0ERy__iPwUN_.r6jPis3kdLK98PS4dZyctyUniFF3oY-1739398492-1.0.1.1-xFe70AdaFRQTebwW3nNo7htSk86n9jxyT2qk7NAqAK4" + 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