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-591290984890.mit-edu.top/post/1475026398

  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-591290984890.mit-edu.top",cType: 'managed',cRay: '91104cd7399e058d',cH: 'P4baySguNM6dCHhg2Y.alBGHSAm5tvwWM8HNY6JK5rY-1739402330-1.2.1.1-ezhR3O76K69FvzDnouI_drt3ywOFpSt0e1pUWVqDn70_dePf0IbGcvZF5XU1v2Qy',cUPMDTk: "\/post\/1475026398?__cf_chl_tk=zIRsAcvj49k.CGLLI_LApcZ.1HMINy8o8hV2rp5l3sA-1739402330-1.0.1.1-YlurFKnKtIONfczq2YBhmNpuIa8DbZpzNPZehbI5Bhc",cFPWv: 'b',cITimeS: '1739402330',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1475026398?__cf_chl_f_tk=zIRsAcvj49k.CGLLI_LApcZ.1HMINy8o8hV2rp5l3sA-1739402330-1.0.1.1-YlurFKnKtIONfczq2YBhmNpuIa8DbZpzNPZehbI5Bhc",md: "XOG9J455OEBhW0kmOreQqC4U2HnmqILoLsjHNjwRqZ8-1739402330-1.2.1.1-JGVQue5P0aGFWTMmn6hGGEaUWrEbJF7QeULLKEq2lysXr5u7HfZHymfnprVVJSI1BYV4M89jdtLUBZbwZ5JIX2Bk.55wWEPY238CJ30vrO..kE2lUISdVu1jY7vLtD3sCtJNuTWe4MkD89yEjaOu2NiIHzAP6lcqBJ_sqH_m0YC1wKguRMFvPkDjEzkAvSAkD9MEa98UY2b9ibU4JOtNI06t0QjVOYwK7MnfwfzauGuErQOerIchU4pIdVa8MqG97S2PLXyIXrf1w_MThYgfBP8ODZ66hALS1zLcfPuup_Ks.xUvaGgPdm_DSOtb0gJROU8wXY7XaY7WEwPzJ1hlAeOU1IlSgfz9pLxjY8PoozKK6dMiPOev5J.5lb8f0cDWTYN3uyAYP6EUI2r7AX_0uAdA__wcvxW_b7PKEyZH6.v9KYTglwiO_aP2zIx_TdLqYI1cqAN_MvRVxdu1NnWqtwZ1TrA2L.VXf3.ZPr5bKO.NEabHRGjrCH0.MiTNG9.b4Fl_Ru5txyIuonITmrcP_okbaBrp9WMYWHHv7kYYew969K9Mq.zLqDb0OhLQ320UxlHOLh3jnlHin6jrLScvS49Lggj6ZdeTNwpvyFghEs3htpLPNCjzPG6tePErlXUibRwwibAlr32VAW0lVcKLRuMxkynOERNQyJ.jHzbiWNlkLnZiq3eYiQHJBW7dqikb8tcFP46ZEbkgO8gwIr9ik.C8L9rwkiUDiN_uFy7KHXJhlRKHm.x5U8ajUUhoT6ALPjp_ORKTJQ8_agXKwf3N1cXRI8bAYbD1FPiyMV90rAw4Z6ZirXbF7DuYBzyxcSRfiLmMoGYtjl7Ph5pTKBsZnGhPFdtcoB3u.TtxJhKf99D5tbDgtIa88lHq6j1r4stiPRg5j9O1b_BmVsOJfXfkB9oxJ1hQlioM1X0EWmQSHQsA.pFlKpY7xqyFCjz3V0kwbZlIetFhqgZvjtsZg2Nh1sfl.83qfMxHNN4XMCl_vchCVeTllaQ1BJnXcNkyJTOvpruS.Pl7tTXyM5Ae7tXG3gOSbM.ZrCNKk_8P3sJUO1LHocBIqLcnF9cp3RNi7FxXCNv1dYaqZkca6sd_ijo43HQmvBOKkWSHi3lA24C782whxNRfQUJO.M7OUZY9UVAONcZD5N0JCtkUZ76Ce0zB.ELiC.QVJqi6pTbvGh8LjouFhs0byz3dH4_Se8L6AfZZhnoPWrsbPV08Qt6DSF.Bo_X_8ENHPWrEUy0_0_.Ea1TaCNtiMO.ev7SpXGECYTSoc2tHdIdFzPaHX0tMLiGgL44jSvqCENbmWOU0_sJYEbt1p6jqa7398ITCQzdZkAS1mCkH81bUiZLX28LQxn_o2UY.OOvas0d5ORGGXCc1l.ZJPLiktrebMZZMbEAW2heKxDtq.E5TmWu0i91V56LkGgFHTlO1vBBSaC2eZXX_ThCZpnPDEg2ACpSeM10uABvwcPCDNACNHJrhGcJlWEzLw1yVEUelIBmI6m7k8XY9BvnBJPAt4j7kEheUUe56pJGM47QCtIgPUlgC6.G8CyhQ.rI1PPqFMu9ivrBeOxTw8FoecPg63piaZ8Z_eZfT.n3WUNtyaST3OEGSzuwSyxgh54tF_XPVt5GBgXFSXAh_W_Uh1DukEbAjvrXX9QxgewI1Ko9boqSVdG8FzgthG3WWOs6XsZgxNVfcK1R5kw_fYUJ0hbrmmZbwuJiSFhU6Pg.O7eeidmHh76C9IzRTNcj9P3xuNEFXRgnXT3g92fc3aQG_9Ppngy4Kxlch88D76g6dLXVU8yndWjEhJxVdGCTOZuJzVU1_kcj8rnHNNmubWfU7b7tJKIbEZaxBkqGCJmTHILefgpMzYzFU4Tp0.uF4HykEyxry8xtAGCCtuOG0qM3dwmP1wHMhPT3IbELZLVEnsveN5E4M8uqkx2.6Zakk8C5A7VPXBOK5.l0CNS15gSJTwTMPL69r2nrFMx8YGjVd88ZCxy9YQSNghnRajJeq.6vYe1Kc_Sq4hEnwv0ICBeL6MS6wl_Yrso_Fq4Q.ImoU0HEH8AzAGxMoVZKxGU08O2bGEo8lc.QjZyDH6RzvSguyD9Ul1X.IK.mGXEkhh_PURiKCZg8I15hhTyOMAxqzoTV1D7VHYdfJKcjesCmMTEEjpB326oHf6L.pt660OTx26ePK2zAKEA_jPa6HBRlY1bpF..ORIv8ufSJGPvB8d.hrx.BBwgQTPXohxURHtIvs",mdrd: "0BD478vPhk7IOu2F2W2xBDJ0AlMGy201HFU6xu_7.Oo-1739402330-1.2.1.1-ypQVSMux9MaL6xKdqW.Gz0XrB4NvrZJwj8O.8hL07M813Hl71leLyrKJYxl9GN1Lc3VBsuAvBn8bA__l6g72CbqbB0KopCDfZFb9p.ZmUnXnCtUqLvGkKQojyGWpcswYriH7W.NKUMpR5MSu0Nkzq_BC.Yvj2aFlcznjsfDfBaZd9Pb.IfEzRIJWbTubU808qHxyac4v.QhD38zzhv1n_175jRpZEQYEF1L0a2nL3bL9GvPM1r9b152M38gbiwy3_cRyOLp4ziZe2HWbwf_Fg4_An0Tq4nh_G34l_rRWmFxTtyEnHYLLnWD7K329BcByMDTgnLjF4C5NRJ9L0BG.Yx8HKbh7HDTxHJYhyB4hz6vrDQi_PPltl_L7Tg3.Yn3WJRbF6MTZha8BXDu_xeKPFnpAaIBluCRCDqfufyvzYHLCIkxlXBLADXkQtOWm96h26mcXml7puDmmqffmOYhQr6L4smKyxxfoqclOwcCCwcBHDyUKyfyjEESxR7k4BnY_V2T4c569iAZV2.5aXelkZErpLvLJ_F4l0_uMZuaV75408xENIgk3jywaEoIqVNXBKQ1yAtVfmCPF5RF1fWRuKzbPqTgDiYcoIU1XnCC72J3exMKFUIKCtUHjwC_zLkRVEKXztuvXdvG7wQdjnqlJAcaYTRCBb4enOXiewWcquydiC3_.fqB6V6w52V0L1hn4MXOSzONY0VVNvQtlgFbEIojq6bkDcF7Es8AXioav41TDOfvRQJJa5mB7dxstcGDd8MLQMvIBED8WrWZlnYQocvFSlmmNUT46tjLSBz04V8fos20D9MiFzwwkNm9swvjezU9vhpRUpodoSHq83FIxo3qPqI29l.LS89I6dOPcdWemPvzo7pEKGx8oMFjs2tZfD95JvOgrf.ms_05a3W.46zp5sP3nyf21gyLMmfm.uzcgl6HyTZG5BJYHOdnkTt0xcJTO_0ncj3B4Ye976VSCJagcDRq5Ooxm13EvJ5b.Sw3Eu4vQtpekv8kCdR7NRHM7Z_D0gEPwzX.bK64QIWSJV4WLmc0K0fP3VhKRwEmYZz.zzI36ykV0_RNWVSEW0qFKlvvUiQypZKsZPi9JIYhSk9kreYZ40dHkZ6py4uuM0YHGHWDnNADerUWy7CPQe2Iyp_eHUD9gWSq1VcqDJkgW0rfPkTxOoawKqxwVJt_Lvz_q65LNbimgrz6juQF.TgaDnClxz3ffGZvVfgYNsWQd1xZIXPJ0Mez.KcOiyrqxFpIfxmCMp2aAxFaso.vk5ZuX60Q2Pk2NsSJcVl__9OB1YIPoba704Lvt2caE8q_QwHF01jJlCggUJG59W6Yh9087nixVfyrY2uTwe.FriFgYo9u3UFlAO1xmuWppFtkquRFp9qJneIjvu5VWQuBgTuPemqWxPeNcBe2OrqsOayIPAx5F519gu.Slag7gVQ0Ur6aJHLedZ.05QVkGc74TyYYbOPzl4BQ88IqIINZupOUl1xHX7kEirTXW.IQLm4TKBsaNrcT6OtTKIvV_pRehaOiYyc2prePVwSEVNUHjMKZ_tlQNdkbjPWwWyz6FlCC.4itsvcuXAPMXJAshnOGcvFCU28bS2ylQk5.0fB8j0xrLVTZX1b0e8wE2LN6kWnpM2qzrxZKsycVDHzn7.ilHtr3X1xWLI_GKy7COy8mAaBcUPm3ADQ_JbjIGAxRdfQ0Vn0.Hl_Tn3QFUuVCQoepMpydFoBuXbzSw0iCDwoLe5mXhHSclrh0VQC86K2JpAgkdr9w_Og1R..oNmKb9WT6R7B2Wdruv.z.iUxufa8E8BoPhyq4ruNgoxMq_tVWZ4amMBfw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91104cd7399e058d';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\/1475026398?__cf_chl_rt_tk=zIRsAcvj49k.CGLLI_LApcZ.1HMINy8o8hV2rp5l3sA-1739402330-1.0.1.1-YlurFKnKtIONfczq2YBhmNpuIa8DbZpzNPZehbI5Bhc" + 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