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-809289333469.mit-edu.top/post/4680917523

  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-809289333469.mit-edu.top",cType: 'managed',cRay: '90f6a5076c653920',cH: 'YkYKA41VymMNf.PO9IDeZECF.LWOVYaJu7mL0mJfCIQ-1739133313-1.2.1.1-WRJZ.0Bf.KILWfef64CRIMFxL8840iDc4LJhwixyohksSUA.quy.wOuw7XiHayQ9',cUPMDTk: "\/post\/4680917523?__cf_chl_tk=IUioS4EX4ZUzu7MgYmmld01ML1Jm9ak1yK66UGDuZbA-1739133313-1.0.1.1-YvNsbHN1eyXeqmQLjsItVVpRAsm2IF3OH9j8ySUTOtw",cFPWv: 'g',cITimeS: '1739133313',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4680917523?__cf_chl_f_tk=IUioS4EX4ZUzu7MgYmmld01ML1Jm9ak1yK66UGDuZbA-1739133313-1.0.1.1-YvNsbHN1eyXeqmQLjsItVVpRAsm2IF3OH9j8ySUTOtw",md: "rbW96yvbE1.oBHJwkRIgMgn7njaoW78BZuU.zBYUDNg-1739133313-1.2.1.1-A2XxretBVIp5EU6SloL1CPzupCD9T2TWrVGF8KYBul0w7.Ye5KVjlCMNO23l7lP4D6J4lmWmHRwYR61GxQKkhAdOZM4monDYNZVagYkTEUs6aUrtc.mHW8o77mj9HQyvgL2UbbksJ.OvzMWdfCGNZv5o8BvWLwDJBCRw2XT_oG2vS_NOzY0tOf2KSOChRiMzCTV83aRSKCOdaSMSfb5z02W4kpXLkBhNDbtpSn.tq7YfVyP3g27e3JjcPulZtgjfwIgn9rN_JE0dpONQhPWzsbbCjk0VqKgXNiGqEUSddD9Y99yDZJuXw2deqKxr4GQ5wbkquSr77mbJi1lntNBlfSxVUoBMFbgJRmBbY4oee00WjASdnNqE4NpXCPmbN9XOjAxm9Mtb_RNy_wfI4lvq4UNnKVuZqWframpyATjFLVfORLP8EVdQgWa71mMDH_WCo64dCzmyzmfr3Bl_PCiY7TEWLeLniZwaDGha75fg1JYkigMhMetZ1XlY5eqnP5B026jIoxtf3crugBlhrvb6mMjmlVQPnqN9Rax9xjF24Z48ISqth.Sag0fB0K3T5Z.7dI7eSxbjV7ECEnSRaJ1me4JZ.yDgpmpBYG_eFd7YNSqTXeU.loj6lKISdva8EnSrDNAPe6KlGqGxNkeJeAAUNIg1mCQiKyrxwJ.BJuS2F54GlhxguoKIg5x4pTjgcC1Yk6PfCDWlORQ8m1AEz7_Kc7ZwyertmxRtcAFAdTlHeDTvT.RnTrNDWQKK0v1Sr.hO7sS8M3KRLRM0krz5h5vXtmXcpYRLRpb_w4Z40zWRSLReHSa1lOufTBF1oO2e2eh.YlgKFE866LzggraRsDrXBnQuEY_vCYUv_UNDnQ1.lsmXL1l3NLaXxo14rVDi9aUlmFmoQF.CQcVSs38nbKcIgZBzQLhiV6EG7Qy.tI5BV3Pkwe5347Wh1..eMCtBQOtHjbBnBiR4vp7OmfM4lQ_4UwMyLvBmfAs5suN38burDVhbxNK9xyFi_MQBRwF28B9KBWh4JIzG1AjMGEHF.J2kU.3_bJCqY0v0W4.m7apktupq540ZyzxdHoIPcmChvmYv4dmnlM4cJ8RxKOCrBb4ah1CS9gyxV3CrM56mftUmLG7lugDBJ0LrqPRuXZJaUdI4ziNI19FFOTf7CBLUez5BDJsBIUg_vxx3iMkq3iiMB986ywqVL4L3weLuwfEixedNxuRTT7qguK8Bc_f4410CuyByciIsU6j.F_koxirkMxpIJ_N3X1gsOQXLlQL0weKJ8DqDAvUw5K9OKceUDxRwYy6DtLfNhJZqTbq1ppWlVKCZzuUPMd.4PGWEAElilq72jXwT4gnmMllz6Vl9Wn9J7QNBcVMqahJyzCDXEYdfDBiH.lZ2TnF5z.FpWhyRpixDI_IgmDS6_AvtpXF1sKN_ya6IEZ1dh77W945qWOQaPYEWE2ENFnOpM1NirPi6gtDc_eYjNq8ST4eJFUUZKhI4hwUqXcCSWKMn7z4gU.I41lifEw0B76HQSyx3DQJcZmtADXK8TI.nUjXBDYh63uYbpkfEYasFRPLSwOsjuw42T9rLJkTXQsRsvc0Nf6fKQd63BLhqLz662fj4MbXYiOGpY18U43Ab6yc9PlHOX3KE0gC61l.gWoDQTnlBHC8khs9hEyeCXXqjEX0v1dWsYESSOh.ZpJbBcYcDqEaL55FL40D_JSyl1JpLLJyAaXk8vG_GIDHLMwDHKy87JrbHYdimRHmYMnf4KplncrYF1LAxl7rewmQK78xhpDMOvKyzEDPWjApwEy2TgilHLvYFX_U_jPg_21ex.1pDnU0Y2Pg4taGxI_px9a80qfn_FB3REzZaA1g0F8df0wfkKsd1xN2OkPjLUKslsgHUfc.OSGFBELGfzTDtwvZ5MDNSvqLKzGvYgpcYO.vk94Ww8wZuh_oEWinCp7Z6fC9NuofJ2MsS3Q9vnZqhuVrXfnZ.UtjdkgmsJ8PjVCgluMvOohzk1npCS1VVBXjo3OaYwcfUWeOC68b7K1hKpX9_wyYDKbMUPyxzGectSD21F0KlaM8n0ZQwMCSwOFOkj.MerUiq8_IqCacTSWcAcpEGXYgv9J3PFjN_5Ht444DFXj7FVB5zwBJuDHjoWhgm3hPmm0iO9m5EsIASNKVEyLtfxjJQesngyNzfovoXWgg9dyesrnz4eQ.GliBqDcGvO9tXlt9LoZmF3HQnKM54b61kwXUR4CwyblAB",mdrd: "7j_8Qksim5fu7_waDw5vm53SJKIuXY0aVHAKeJYpSFY-1739133313-1.2.1.1-nrbktBQ9b4JO1oq_VyvA1RIPtTpReUtfezk7vUmIhwojFB6_FT3Cwsw6DlrRxb9OLGxbLwTWixpcUtg_r1R3tIGF8VjtRqIRmi3woNfy_hdoXO2oHTh7P.7URTcmuGNDCzz84f_z_WiAcNGQK8Gg1HlPOI9Ckih6VsRhhh3HluJ6Xv06Ji83pGHEvWgyAtQGqmg0LeQEiGbkVfhjaFnJUWl5a_rtE6VxRFiU0WCITTknYhzCUgYzbNi4hASMv0tCywu_YitSNQyNXIaxEAr.jfmPMJXATqfcp.Pse987oi.phiNSJwFy6Akw3I0YVB3Urm08Vfw2MG9PnxVKoAwcbfSK9LHYQJCIlRRjlxWhMeKpQQjN_apIWSB5ECY1FK94PxFd3VTX_7bmNtspUFrxlTBqzsgOtW9W4awi8rDETTRZE2FiPxJBS8hn9fqeJOmocTRAn1Mq4mWcxLmr2kY6_i1qdATuOJEQSIsTKqytviWxb1xbeSx2yidBf4CpPMRntogpGDxAShbnceuk1xypdjCK48RbO9F34c9q4ZlrE039xersVP0_7_GinFrniU51L_vjftgcRX2nOMe4GrTy7Du4OonbS8BPusCE66DXyykjjY9XlaUbfOKAOXnkm7iQDvbyBjz36o.fCvkBkjGeL75iBrcYOg1xI8wp2FxsAlbzzHNI0hhuXKc45g7leKfNnPnR9sHjuznrnqlmDMagEG2ob0.LM5zzFz3eTB._X5QuQyhvyK7QaEAjg1NAVqW0C7pmKru7JcjB0bf6tEOJftnhnr_EK5k489q69d4xG4IaQ95T3k8Mf5xc02YWFXR4TvGVLG0cUug8i1y_zw_bAcK.odgBy9Iub6q1l7Zw9OP.e.4WToKW7Iy.Y4xhM6wAqMeBBjATHlXN.wkUC5sZgRtoXARM_R7lRu8tXzFhyqxp8zHHTG4q2THKBawq1PBdY8WkwumPVbz83knlA3IDwlT24hVh_83eQDsvFj0kB7kY1g_36ZvEphoQ3cvsoam5Jsn3z1F2YMebKtJEypNqAgLbSvHso2K9sFpVOCLeuMU_0bAAENC3._WBlCzl7cpItStbaWggESuTblE.iKrJGdxx8ElNjpcWCBgrWgsJS4eR3ZC5SEykv2IJeu5BCidTMXjyXIg1yce3o1KU0Z0dbC7F5mrI5u53W3.XC4iFTFJN6rwMxc30j3j271Qgqb2ALEyiGR1eZGL_F1xaehcyb2KcjuYKhRJy5EH9bCt4ZSRitKo7FqSX7jmxDAx1vUIyfaeslEcN.uoGoOz7QaNjcRBOK5Jcd7vUYxGYj7R5Sa9M3.PSgXYCIESH5L7QRNLUdnDs7XKeo4_.LO6BQ29yEnTOXeBjAeM_wZ2qWsB7IVE94_s9d_cf34iGRIPvcnpKrkaN5OLZkoZnc55UXUEJTO5vw608GNPm5J6XE83IaD4A7M1ZWi.nqliZFsuvaXWjm403y_FUnCjZfYKjVqfNSS10iU9RKk8ZcundzFtCU_naDoRujR_zo9pRiMwyrI4skjMaOszFOMoTLoBjA6hrZJGtrWchr8H212pSrfvRQFDY.qZ1gY5mSKPFJxEczi6apeYZlvVKTtBV.beiNcaS8yKnbechJSbBbf5v6VH8G5hccWh9kaeNBFWRb7Xd2xnwRjrkepX72jl32WbKdAv4EJgDgZONL_MxpLMHQ4I9vEJY5.Jj4swBB0CFWpIvGs7r4AH32edDzjJ79Gjv.qnOXoTVN3A8LKABNjsY5fi6PyteoDf_r1mh2EBT0ZfkZBkkxTfQGdK9X7hMZl_AHvajDwAGXpFZQQyVPLmQQyW4eyI"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f6a5076c653920';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\/4680917523?__cf_chl_rt_tk=IUioS4EX4ZUzu7MgYmmld01ML1Jm9ak1yK66UGDuZbA-1739133313-1.0.1.1-YvNsbHN1eyXeqmQLjsItVVpRAsm2IF3OH9j8ySUTOtw" + 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