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-623431666119.mit-edu.top/post/0471963258

  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-623431666119.mit-edu.top",cType: 'managed',cRay: '90fcc48e79e5393d',cH: 'OPwTid7UNhu_CE6rfHJMvxvasu34c8fzyI84aAIAjyk-1739197519-1.2.1.1-18_tiPFnrZJHUaxgBatz1Vy0r5maNH9AfxgoKLuxD.ixKBSZba0ESBvPXroRdPrf',cUPMDTk: "\/post\/0471963258?__cf_chl_tk=cemXFwglzoDrTzzcWIE9Fw..YapvQF3.51hGx42Vxx4-1739197519-1.0.1.1-HyJWSakPy9CQDFnFBpz5wbizFKGZbddhc3TvKCX2sJQ",cFPWv: 'g',cITimeS: '1739197519',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0471963258?__cf_chl_f_tk=cemXFwglzoDrTzzcWIE9Fw..YapvQF3.51hGx42Vxx4-1739197519-1.0.1.1-HyJWSakPy9CQDFnFBpz5wbizFKGZbddhc3TvKCX2sJQ",md: "DNaUswq6zLE15y8y7M27OPtI9XiNuWtiiMw6_SKAhNo-1739197519-1.2.1.1-.ChBdNLLGzfc1iBnCyCgnn6DAyKS1zt58pLyxpsiNOpsHl5uLMzL26RkbtLzGkC0z7.2SAm4zncFTkaSLtikrJG4TgUVXW7EK._LnuMy8ROYlKO0s7zYpL85t1YOiG6DpEs0tcLWEYrC9oDhhAtUSVjPgo0K8bcXqQE15NfajguW8PNmZFCmLbsCL8Y2XXd0s.CUmEBlzSB75g8kxX8g9oOUPjJQhyqGXfDfaVGebEzbCcjdm.S3J_r4gcrz.B4KL41PiUFM6USZ8_uhU0AGywkNBG3uABHDivEx9wfLuDrAS_GehMHYspuuOPG9rkEABrq3j87GC.0hwouj07es2oJDZ72GNNLocaDfEIT9J_sgPOId4JRAYB.3VFb8z.otDM84IYjcn5FjU9NBT3.97AV5f1_1WzsktHizmYIgWDdkuj2Rsv9muq6.Zet1GkHoAr1yKTkC7IQrgPR0JTs3ao2B8GuhgD.eAJqP74OlgXJdSqVjw9bKHlWuCZnxyRLrGs0x9gAx_7qKwvMK73FC2KSaCIRJZ1LgAN0xaKa.K5qmS2avsv50tKoqjeZOChTZbZTOpED9UIJfYOMQT9bekLE0stTtwxOdPch1ZFSmhMgGcoazbPvVhLZn.gyCVo54y0wTUDjQanT62egXoLrdRAp.EL19yy922oyn0PAruqOVTLTKRe8fggtwn0tcfsUNWvVH7UjAvKUlUnCFprSTuQgJNo603wQMfwezzzwgYLNZy1KcdXxUseIBwuXv8ZJhROdzkpSkzyoa2sfN4qhmtd3DyCLjMgFrlG3g6NyaBOzSxpDKP_FLSrqMhDqj81mwQ21tdk4S.iJw1PRGipiBNY6AJ6UimnWmLC27ARS7ZZltapFSr5W9AP1XCMDH7UXQQpS.DHdV7vH8RNNc2jJFzGDl1xWOyBqTt.Pt.iD9Kjeo6Tmh9.Qk.1_xoMUNIcC1QyZm65q46oDsttcltVdQb1xAXrGQLOG0d.fcMwxVQ7.sNEIC5c6gQGeEtCa.qOw5p8ZuPbqcKF8tTea8uhkrIquCzdfpo33hT3FMNEvxDTfLcf8Bgb9bOdtjmSX64mR7v.mGqon0GJ8TCjeMd6nUMyvRZXTSZwIGsQ3OSH1Iez8s2.qhl0AE0fORs4V9ysfzTjtJVK2TT6oU7hAGToCknFkr3Xgae2OoMBE3WC54Q_smvVaeUxPSmWiJ0Xrk80ZaUk_X5.zutVv8tsky2m0UDN2kPalO9u.Mg5K3tpClfYmRAorCsFD3a2_6yztQQGYs0xFecjJ8OOW5E5.1g2FfDI8CIe_q9pZgrwOm5k6Nm4aLDV0U2BLYyPbsy1l2GMk8aIVWkTF3QRBGCdaBtF7rbbYUUNcx8E9sjEZxnnA.A01C3W4J1njubkhHWAMlJvzEnQFGU2DTRhPjBO5Rnnmp5YQNjJgAnxTfLvtdNkFe63qbUFWz48ZtREdCnA95eLRsy8zGy27CTFsCsKgmxTB7byPns71xzhKBF7UaZfXiyiZW_V2Rs2nmVw8qKDHQq9cgxyV3iIYevVPChMdy0f0qbljljfFduWb7RYmpqmO0Vf84E_NZwkPloRFRhUiAgdeLU.CDYTLJmP_cTDf9_9RD8d6ej0MSzO1WsnDGKr0bu5_K2Y7LmZrQpcjLjfm9_ivvHLzIVTkTr0JtAkG5VgHNrc8qRMdg3ziiLbPSNvrHtMJWH3oOsGNYI5KhXwy11Dcjbk_JRJHWPj2_RlQZNV6vkNlWzHrSd_cqWcA5NLHfDJvf7R7C7vMM8dCvSEYQrIIKcgmdWLI__4BXoq4Pkl7haU42gZEPvCnMnkbQXxfoROPEP5zLWm68yJqtcQEemk5P4ndG2x8z5_AU8aT2lIXixXz2VHIhl_JbXoJIIf726ykZjnhzO2ZiZ77D8vCHyY3WyU3xDGYfhGcNixUXltPSYciUCzOuN52rwKVSY66oArtwRqyI9LLg_snknVhotcddakFiZM8wnxCHQzlo6zjIU1432Jep8zv.wbw7.axxSvh5EMtZJViIidO2b9RhW_fsrSa51TnI81qqsOTf6IfKEOWe56KXXUAhdIkwBGE3nMuBdvIRLKHih52YYsTK3F0KxQ1Dlw7.eEi429GrQomQwi6YslF7R1EzILAMRD695PmIyf5HGYmlC75b9CPLyjWJnlDTbqAS.6Uk7IdsI7B7wKwyAumCJBs_pZOo1WrsMdNx2s.TKn50ktazFyJD2lWA",mdrd: "FPuicK.lwxMZBLmJBQTTwTZ06sGsLPj804Hj.iOZG.4-1739197519-1.2.1.1-BWkkdFuPR95RKux1znjgqGOp0tY0jIqVtpTgcDsWpll4.Xb4Zd447CPzDE3f5xLUlPVhftyHTF1XR.Fbix7RCH8vPYqr7lU3DKCprIwHrNUhmtVfqTZ0HOBgtcvnGT4tUF3AQ5SH5pBCpA3S7EhYJ5SVMqip5vLiFkF6uqD0kZU3AVlJM9.mUuiIs43e.YDfec.iiHDsd_lOMZRymZwJlxdj29yXNFI6g9KbC_0_BdtuWJTmWwGNB9Z54bKErQjzaAOOdMa9BkVk25qgDKlJG.oMNGfU6ORL5Ep8QzEYJYuY8wcmSePxVSsSV0hPNWZdV.v2VsalfsvVWGDlTqWq17R1Z8SijpTIeAF.G18uE7O1Dt_uSLml4uls.t8GD90rgzPIvfI3CzcOQ_tIStbBiV.qescrkHAGszAJuQjj2HcEdm8xpn8EYkx4Lho..z3sPDZft_Ep9Sx92UZ4K2Z4JOlMFQEJbC.PRnhXOZ7lHSZhKB_8EeNFr_vAK9uqSp9jRW2q3RAuKyFzZ6IkrpTYbJJQVqGGS4PIAj.Q4LNTZSZFbNSdaPZ614grbu15o9NNOf0dJTpARPsmHZ9gbp71oqWg9_BR2xjUlJaq6Rq6Ax3DzBQJoxA3RyJv..t6CKGkF5wtwm5B29VHXbXKtSqYAwbzzmg5Ljf8dX.MY0D9LhcSMj.kB1IxG8s3Y1r0hEbpyXUYBOayXl2dYB.jKeHswJDFy9M0BvKKs4uF_vwj6WtVwmcUPlZkWfyrY4K.1tW.XPS5mJJfT867yX.78F0rxHwQhvQHfJhx4SSAU4eavl.aPAmgkLQO1jQ434QgO3HpXKwtPHoFvNiL.F2ueZRaSv3sPwNcv.x7.jKPoZODjKCN4UwiLT.o7Yh4egXxh5Tdc0Au2cK99EhKlYUAXC5HC8UDSxcdn5pXRl0HZoF8U5q3ScIk29kwmsU.fcbjOqkSZQLPLDTvPuJmOO2k_OdQVvciIA2j2A.60AgV4hnjj0QA8UWysrCFUJoeeIajxs2cfIPM08HEno_9djxX_O5TamaNoUl9E7SVcvOnanh6NTu1aE5dI6plwqlbVMHuqYpx4LxVeDVRE0zVN_Yje13Ns5kEFB3KvurpB2m6NzzXzToswJidHGNj4iXL4mk2PljoHHR1k9qyApT8AucCEMbdAMY_6H0e.OWN1SeSqGSll8R5Ms3mMnZIlOyrAASvpXAjTaIKMNzPXLI7uDvrtBX5WYOIYvGIHHUbagpHMXiKFE6us.ud9iH50tZ0Uzx_9WaY0yiLMmRDQ0vTkzlW0fie9e8R2dwu4pZ4EibsW7YgQW8JCj2ikobRfI8drM3nXil1ULBUiFDENnIiTx4NvG7xU2XNxaXOg.wvSLNPYqUlYtbRcajNP76vM9Iz8XpKk_Ta.tiL0gLDyxU_opSdQkYGMuwKFD0cVwFwrDIlGodGXKeudHBhSWRq97lqkEiYYKP31gCYe8DGQkJg9vm5N8iEOqn0AOgiS_oySbI9WJsqObPenK9Fihhkw5uOlfn3_eQmyRgJyEvn6iYo_SVBk.kLJpsTjlgvRiStLxlgTqaE7lUFNpKsYq8QOG8zwjJG1LTOrLkjQeo0t.IOX2LD7qKI2rRhCdF0yju44_3pUzlSvz19GY5FgIAJyI4FovOeyqRmHbQfoz15GxO3hjbPw8Cfln35M93HoVLMKi__fV3duo5vIk9gvET.IQgzwJbL5dnzgjPho7YR7cf0nqMXH5QiEmyplr5.Kskhik9rtN72489n2Xa_tpu_136Baqeggg4iQ6xUFno9bRwLD4v.s6ZG6Q"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fcc48e79e5393d';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\/0471963258?__cf_chl_rt_tk=cemXFwglzoDrTzzcWIE9Fw..YapvQF3.51hGx42Vxx4-1739197519-1.0.1.1-HyJWSakPy9CQDFnFBpz5wbizFKGZbddhc3TvKCX2sJQ" + 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