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-affd73dpg.mit-edu.top/post/3419826057

  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-affd73dpg.mit-edu.top",cType: 'managed',cRay: '90f7d4483bf9d6dc',cH: '_Y5fyWwOJ1COjyeNHEgZSrLmFUZAeQ.Nj.EShD4aDPo-1739145734-1.2.1.1-CKWQEe6Lfn2VHKZQ.1crLO9R8jS.KmDehs2YVpEI6rYWNUUnDmAFgRwDK90DdjZX',cUPMDTk: "\/post\/3419826057?__cf_chl_tk=Oxt9qUnxryMrZYC6bbbrMFb8xkDiLUzP7XjXiGdLmqY-1739145734-1.0.1.1-PQBvs2hh9ln5lvhXVn9dMCcwfhJrwUiyvIXy23gUh40",cFPWv: 'g',cITimeS: '1739145734',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/3419826057?__cf_chl_f_tk=Oxt9qUnxryMrZYC6bbbrMFb8xkDiLUzP7XjXiGdLmqY-1739145734-1.0.1.1-PQBvs2hh9ln5lvhXVn9dMCcwfhJrwUiyvIXy23gUh40",md: "KukUh15mFlOFjmF2wbavZxHRt6nzHpx2J3TkOClefUA-1739145734-1.2.1.1-BTJeQ5cKI2SBOYUOdGUau6RR2036Z0zHYXAQWNWa1V4s0_cmRSESUUKbJcS0mmpbuCmpAz5ZEpWu2fi.rG.cBEyjLUqXUQQ4JQJaUettHy2dB0xESislvw_FO8WhjmwUAdulMzibeS7dM0K3Ya7p6gHqzlBnLxoqGBZgthZMfCcpSvCyaJqO3Cw6a.PD9acxcG5RqhoWBLTBAo2NYfSqeDsRMgnO5sDG3nKJElYavuWRfwNA9KcuBiDrT56JcURkcRps.IsaZaxo_tlLvsmGrSM3G_ho6ZrmOK1sT05jsV3.aECj2dvF1pGV2mVOiUw2R0qR5GyLhKP5FNEFAOg3IPAPkN9Zkguz6cUT_AR3DDUnjId6_hYofg4S5l._ZTduSctnGSEWRInOiqRYR9YciVYlEOSmsoWWJSTviwfOheSlKxQtkk1yn.493UPGkinzQloBI6iML7JvkK3oXR9BwPnbbxSrPuUlf714BAB9IxwBcYABOexO2vhpRG.0mT0GUYp.6alvtgaYoo6dG9RkKQJR_rHi1.pFVfKRNet.DOibdkzfez47hw8T0PSowvUuHLTNgQ.7A39EZ1oYz6W_WfV6.rLQwuJ35kh3eOz8mTEI1QijFX9vhZR84pP.UP_bFMYEhac0NRhFTBnJSnil4TrQrT.EChYRMx8w4DeDw.4kyWynAsYRLfG7RNPyFj1cd.C3iwVSLECUwUUlqMhqBrKl0sjAvrxig06mQoLQMXQAYEHcni6IqzMTVvP5P1vuCAS03su0jdKSo.Wwff47uH37kmZsKyqatzT0r9C.qTmqDpTCG0Oa5678M2IgUuopHn4j14G8UH7z4nyCDLwVaH0WmsK6lMt4eE0c7AUIGrIIbnUUjerWRdqb_7bcp8nE1uKE0pelCoU2C.Z91zBfY5_INhbXU21tDB27PZK2EfWCygPevOl8nkP9dEWNbITdCc33LBSwAeKR5ewH1vgnldijIm2NcoRKOXJ78uVaRhZowMdW4bxB63Pedf8RFqXDzq3g.EyaPfgAoXqe7yOb.2m2TJtGTSJ7LwFPEx_Prped2iXO5UGz_e4QvYt51QLbND303h1ZB1Xdd2nar40WBpFeOChTg2bw_rW3Y8knpjJKBRpKazFPccu_q8h.RsFwNCyXjtj4PTN_a1GLLrJTFvCQwa7MkdIpUsZve7t3wk3jO_EOhIhmZDm1m6C2_fWMjdAD55o8VLcNvo0XC_DMcgCrAgOmKpt5y.AukWYqdHYfzhKDQ0rAnTTPRtncpZwAjBKlQDASJrENjV66im5VGUKLPox.yo0isVBICV24Wh6YQgtwE.yFvHbKPKHUQt3qnkp37R2.5TEf5V_xjO3O03GoYcRod3iEP4R3d5EB8WqJW_K9mv3HffXbHtDc1vev1kSgykKUE6aSxZ4B8jCDujTNB0e4Vo0QWlkhrHhZpAU4SYa.rhnwZQ3.VnnZ0T3PFMooB4U6qqPg4hcEKmWqPYAHB.B4zp_iVXPELNaAXkbhmckNxjNr13kjz3T7vnTa1kjvUVXDvglBbH874sOQZd8lMz.K92yosvNYRLLcrqFo3rMCy07aR_1u6YoFVKvd8.jv7ARm2C0MAlspTT7VFmcZdS4UcPJzY4dmQz6xAJOi2AOYsOxNs9R9Gf2AiLADNlIj1FtvdLDFuGePxz.7zPnZM242XNwP5WAzgpDJnVnGd3b7h0MMSo1bCUEaUh5QWhgH8j314XSzF9c6lTDNdSE5O8aLIMdFTEaFdBv2iOtUjvXmTq5R4HnXfByutSWs4w7MpLF9W0G3wob7N.yqfz1hYCF9mrMEfraiMSP0pSZgrCo_IDHpUTJh0axhZfZKqFRx5ALIDWdbXzIsJZTlEKmn1um597_qFi5gfS7PRKrE4uN6LaHSA0Y.fDPR3.i6err5GyAaY3IhyS_Y4ufB.irMAgovUWXUfCZkJpPP41kkLEMmPaUMx2dgeF3uSif55aCwdCCweTezfbwa0dVGGWbkPLJm5SGmMT5RmjZT5GQSu1wfeio0SQQJpdJSRj7DM5Sn2po7KAc4tpuJDxVLqqQzHCxIpAxOpSUO.BGlLZ5pvXDYjBJuh1pbL4WFY9SF5zlaEWdqcg.XBTBpd92YTmezeN4VsLGJP0GH8WlSoYzQUx0IzXwFQJePPtyRoa8z_VbjBOiBrpNjiOkjIMPqNXJlN.e1wWuSwaTmh5EZpib5n4zs_6bjgXzGlodD6GY3",mdrd: "Oi8XrSB6OqetpXaiEgFmOhZXAF1WY6FsaW5zESN9aTU-1739145734-1.2.1.1-TZWVMBUHlsMZ8H0QuTA8.vCvrxz7DJl_rQn77KtgjvR1GjtoHW1gYP85H1h3wW.tguQk6EnKo1yhHAHf5dszimWrvvJxJL8MiRGKPDsmeoeZOcDFKlrE19PWJ0unNqPkL7nmpYw8yjkQwdtkTPqztDlXsAIvrB1yPzAEU8ZsUUmX2YdSIYWt6NMakyaztsDp28C6nkdPPZtelVtGyb.tysXs8z8OVbe9TOv9wDFNB.s8UL1uiW6_qOR7pEft4cE3BU8BplZSQ39g0fIGykg.uqra8AJ4uhRi.g9V54tCvEgvCmruZVWIMGVNRzbVg8P05O2mPhIbr7CPucdXzyGoXO6qZD0htNWYOUCiZLDVPoHLh8C4LuHvbXSLNvXXiaR8sxRwRJrtJehI54I.w.uT8ktXidVa50z_0fdGUpp7yU.Lcc5p_SXWhKAphui4MUxIwvWXJhijpb1UsTvLY1ViBMlCGByntRsp0pa8UmWBqRvs2Rue1RIm.bcWtFfsouccrYgL4Wutf9TkBUHtsSBQGK7zsjOTlVxAdayl52tDw0EoZ6kKD.8NQwJ1Op.XOCjWeJwPatYNf3MgHfYWmIzif_PUDPBFtstaSKIkcUQo1rz7u4x09gEdjnJ_d.HTTjGvf3coEfv0l_nZ7JDvQoPI05t4F_xHEH5UWMx2.sBjFErzA_U_ZoA6x4Y804ezMzOgXnRIEuKsg8lpMXiIf.QoEmEK24gyRQxVQq5ByThRp32gQw6HNI.XB7zGgdJ4WuAPsDuOlSWkrM6fN33TbbYDLwn5cO0gPNTbK.FFI3FePNm.3GS3pNuymWBh4p1ovYrmLarpd6XIEwB5J8JbLFf2o4_nAjHdDP04itL3Zhy383qFgZFOGhOwljWvogLK8aDv2FGd5I1_5ll697b1YQhSUiUxcxdpwrryL7YOh5eIO3ky.Zd73cP5t3ZZyud4curkeIZsa98uC2HM2gh2EKqnzzs7t1pXqY6ccq_SauA7NOIqcomTpYbUZ6TU4xbx1y2AC10M2yb6kOKP91QImUb6XfU92W9E9U8MTHwFdOa.Z5K9WIi_r20.PUDQfdZO3k2h.CUkapyEcE8rk6GPbbb8plpyDc8453PNiqWVlcwNRkh7xy2wB2.p76itROHkcDXTXrs_6LExKrWPXFpEf7nQjH0x5n6.EFQy3mps7O7_MLzFT1KgEz_E7VQm45ZVOpdt.nsj25b2srOtOgK2ITbwObhH_cexYFi9Yig4ikku4UoKDJRTPn3MHzJrvjTnpFwS838gRYcxkOT_d0E5uSarKTZd6fvxfuJ5x5Omw_F7KVhPhY8VVpOdqevqLs_qNBbqMY9P8714ErXVWQeMDGkct8y181zV0BeY72_4w9FHb3qDoZao5U4mm4Ww_tjnMMA_PFCoJt87ve32v7J81PtHa2g.CwpIOoyDt7q_xR_4Ato6tN7CAxHD5UeT7lhY8PCtn25Rm2aJsB9KtjR5S9l1qKWpspK1YwiiBvhyGltD9fnI6gCTYcOfJDf_6aIZoG2Cr8qnq.X12Jm0Cb1YQ_8i3zZzH_sHqJSMXgaS9.QVFvYNHjhU2Hajz4bPpJoqyhSld4sSIp93w5cbYDeBekjRtLzln0hjOhynYFQHq2ulhMR7Rqjq7lOBQKKcctGRmXvY.TscIRgvnOyV4cifDg.3UwhrZaC1Dge2wANk5t1NvQXvdfLqcUdnCZehdzkGI7dbgOLMZEoFJf3TQnQlUbfuYjEgsVQu6r0NUoD_7VPH4D4BzrDvj_9GOF747xq8nHP8Gz3OF0wjjgalYy_pvVlTqQGc2ljLzkK4M2AG_a_m9lE"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f7d4483bf9d6dc';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\/3419826057?__cf_chl_rt_tk=Oxt9qUnxryMrZYC6bbbrMFb8xkDiLUzP7XjXiGdLmqY-1739145734-1.0.1.1-PQBvs2hh9ln5lvhXVn9dMCcwfhJrwUiyvIXy23gUh40" + 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