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-179338784991.mit-edu.top/post/0619824753

  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-179338784991.mit-edu.top",cType: 'managed',cRay: '90f7524e3c643ad5',cH: 'NhgDaKF1v.P2OpOUc9TwqOvbeBUpEYKsEJW566rML1Y-1739140410-1.2.1.1-yLPG.w2HfawLUZUcE.8g3KxrsafuU_p3QcD2hQRirl1CtM9LN4ZU2HsUCHReP0f4',cUPMDTk: "\/post\/0619824753?__cf_chl_tk=IC7nXzDdXeXoo0ceL24ADsebyMakEE_P6f_NjZyblIA-1739140410-1.0.1.1-QKoyCcGHJcoIZZ8TP85xdf2QGqjuYymEBAeTE3tSMMQ",cFPWv: 'g',cITimeS: '1739140410',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0619824753?__cf_chl_f_tk=IC7nXzDdXeXoo0ceL24ADsebyMakEE_P6f_NjZyblIA-1739140410-1.0.1.1-QKoyCcGHJcoIZZ8TP85xdf2QGqjuYymEBAeTE3tSMMQ",md: "ocjBFAysnyFr4mkJXXh1VBWkSKbIsNb9PaQ4WaiugIw-1739140410-1.2.1.1-988JMFd4aD6jw1GDAi2eMFOuIHbZym2LQSXopyno.YAVEG007.cafVxEbYPlESoOOygtGmC2T0zgYKAM6Q2kCgwj8vnlzAW3LQh0Rvz_V1I_gK8gS3rG2LdQNaKlmdO9Y7bOJBYEaPcH5b8Zf7t4RKEulJmnMDyEtK_Xv29zAU.hg6cDRJVc651zRhbPlgYVzv_Twr.pQt4KkFW_gdgc00VimVFIu9oDGSrvdCkCLPvwHnzskCyNiwen_6uIQSuEaz_NyKWjV6ao_UXNONoSPuWGtANWZeDGqxU15ul.NH0N_qoieHiKkEwV0rEzp5tDMuoedENebuVrChdTyvhwPFIVKc4Lr8CL56tiqKoCOAAU_xmyBSRTl.zHmqIBTbR_zD_nfOT4NhBCF.f2DuS254RkhfLl9eYZV2mZX2GBB9vbdjT4poJf2uAtONcUjUhqxyztR8C7A_Lnr11nIZ2pTvUmGKtD3gBzD0uEyd5ttsmZTdPotcP9YgeGVYZVMeG3M5.UpeWpDe_Il3Z2qExDisv7cUNLDnarxnwHZwKWTCW9aLfAbiOw_PqPa9zPJn2lUy70UpJbXUUg9ezuqOQvItcEX_X0kkLdeKaYTJ6QoxS_E86GDAnUz7nMxMJS0B5vRr9XusIEgb1zLrEKHpdQIk_UYjdv_OSqi_Q.n1TZP2V05NzzXU1qFPYE_kalxIlqrWi2SbRbvfMgVbNn1.f5P2XMxmmFC8iSyVnpMT4W4ix0n6AKAyhcy1_KTQFpEBxiy3pNe8LGdZmgNNvtIS5ywAVLLj1WrUdNYfXJLQvvNAY91ESM_o1y5wyeFl3ic0Uz.tPMlCOw_1HqFpZX6wR9PopoKowQ0G9si79TgVy7AEOnWQiUx_.Ebyk1qQiqxMIggFsSbGSi.kwXyf.Z5pgE80pK8twg21Lwhf9.tZ1Yzw1NnVXPGMAjTBvR79h.Igm1dtwFRHTf.4kfCOlhI6kr8SMq9UzygpSQwJ7NUvWG_gaJpNydYRLrTovBw8fcn1J1VhLyol5le5xVmwvhxgdZN_ApRF6M2RJ.z_AFo0u7B1y1MoPXPY_lt__RZO.BaaleDm6rnnbI4W8tNLiuP41ojdnz2FOfDq3YHEQS_Gy9De08fOKvkmxnPfWkSwcBExx_8esvdcm4tB.gn0sa4_RmLKgvgKvGyZ1UDgBlh.4jatZUBv_cQojT.BEt3Tw.2P_getHfoAaIrNITToCXAKOScNVbsYMF0jP6dMrRqbYURwiBMbePJCROFN771HPR9NbAJpb9vEafjaHIi3I1sBMpuS_ShPjY5Traypyek3wRcctXv5gjXA.gEsAGvN_E4ctEAGR_mQ6S9MaKMAMCV2TYuSQ1_IpqPW7ytoGyuytCuVReKFk9sN5U5PeRmWJZHtlNuO.o4pWBC0xuAmVgQsxKwaxO2JITYCS24qqo_YHhzDs2ShFgu5UiKOyzHFnYmPZGWIiTFJE3jFBnbP88SRJ_1Oum_Q6l_Qla.r10o3lLw12ZOVB3A0Y9s4pYvTqhfj36WTuWYHX.CjOSyKC8uee1NCxVm2wydCu8dNWcbBfsgVxzE25M_6soGbuicajK1lV84tuwzVUuBjaGlabx1ETQqQ0gKVYLmvFFeQaZVSpUERitDXYKXsJj8R6urr2BJ0jOcomYgmSurUAYuRE97lOIrxBLBN2xXIuYsLZ3_egx5WeEXFA9AqS8ca66j4vbSZ9iYlFibLThdcaojKN1OX0JJtPmrXe9YyMb4CvSmG.ixWj_sqkAJ1DyZb2sdx1UamnkRTjtGM0RVY7I3wYgdvRzgKepn20EAi9DCq1aZgcbpGAP5Yf3jKeYbJhUwGcXBz1sR6mvHX5Ql0BLd_48Iy68nTGc5odd6nP33BFyXRlCOrXJ4b7qi.vO5aOc9fsutIs9Z6eYMz5kR_ZwXMDaKHn9bd1JAixbsW48_.16sCqoUJJ.JPw.n1_tQj8EIdLGrimtH7XzS8WCybWEfImShV6YxQounuwOLR7T0lJFGv0bJrq_cUDCKBogIv8aaNiUZ6T.hH3KYwvBsJXwJs_WW3c35uXVMDtcolWM6m312jUy8ymZ2g1PbhNkEXgypx0kZc9uTxVDRT.bIliVShkDgERwpoyMYPeJU5apxLkJe.r0wB6dYV1UqvCqXnqAsHFRqquTy9e86XZAIZ6AIJ8lrpPPd4GBGYigDfNVQeRWUkxW1zopIxOdKpLriN7Sv43SzKSy",mdrd: "NfSbuI7vGx0XmT9ct_SK5K5GJtROJyCMVpE9f7.3wE4-1739140410-1.2.1.1-Qxpc7sZJtaM4twYc5qHonTlCJbYdvrG6_e4WsqwxrWkAxhG84GL1cjVNRLXrLuvrWBbh0zFGZQX5063IOJ77D6CD0iTfkonClUaXYUxMuTW66SyC41rxi.GGmiDc_eG4Hc5FjWFe4AvCnuaT64Mxiinq2CQxrHZqFd1OPDB1s5Z_zYdXwdcQXDdfY5KmOBSwHxVf_NlehLW1IMahE2I0F00l0ujg2kyukF6DusSx_rrVmCwK9fjnhkUFOwoit_0_.FfPfVZ.ZwOEGbXwjj6LYx04_9nLW5HCwl61yr3TNz2oPxNvh1nyplxssAD1oMChgQ6.0jGWnwimsmMPyALA.fXjd5Wfmg2SygLagtLB5VD97eI7AsPyzhrpkTgfexku7FU843EEPhVJvqrsC1W7gaj4QYnYKBGCHVrGBxMfSJR2.usiPl8qKI68oZ48nXv78HEDWI8uXmEXKYfJh_9.Z9aeg2FbVps9VSjWKj807wdMPWzXUuSAnnuGjcdt5uH.RtvbaUWon_ex0QW.Wy2TWu5vi6qkeCME5wpgLnLU37cy33q59QSYo8u8N2MAXNswn_LjZ9w7c6SmcFr7nyInH8G2cYsjocdtW1kD2u9ecjim7uilzLWkYuZ3lHUFRdCBtI0g6cGqBuq.x43d0y9ViPdBhAbA2BZdMmS9rOMoGsgWMpXda5wbjKM1xBZl.aayEYSc6kbGTTdvJM.gkgZysl6QMsHRrF85OCV6dget1mz0J4qR2Nob0aFFp.LaFjwBB5ok6hb5UDJk.AS1_HZcrqy45ChaqOQZr9ZhmWHJHq_AuiipNG2.SHbZuI9HWYwnN16zODsgQ9OjG9efxVXsP53XtC.oxXPbNbzdUx58b6eUA3yPKxnafmmJecGeXPpC4YlaeeYSjUfZqKJEsTqNQw2iadJAbYr718zftSvc8DukkMGSx3OQhlgT9Brf4nACNo8.qCGDqEYwsxJhA6AvWCoal9NyaUrK6eV_QdMZazCvPRNSTN7QGZHZ6WCsFjTuNU8X5bnzqvk.uyi6RLzAvL2KSddvEH1vv7E7GsAZlb8QaVM_ubWb1q30XELCjwZ8b0iiMvtU4XXfUFbDCb9xDT.RK9xu9mKMMWD5c4Z4T0wonaCerSNzU6W4vAp.QikVo_xHH75Q554ZVYZKAdoLZxK88EbHymOYSgZOpLNhKGW4Ufds3FCWBHe21czTsmaXGHPbf77Kpl8vB5PaLWDSuY_7n0DoY1Q5pO9aNfK5pvkDtuK_itA3IdfdouYn_akxHm1Ayp3XtmGjraFn_6_2Y9dngjF6GQvpBcMsHQI9PSYJSj1PnrGLKbZmFW.qhPGd4voqKTHMGc59I7IW61P7SBL.2hBA4Wkmj7CL0BKEo7BbDEkAaSdO0GNMG_FOVU8bz2yWoGfa8VavJ_3c.bxO.YMf12I4NLMjRfx3UKtZQkjpEospgjlk_t8syrB7WuS0EWm2yRkq02ZFPyuvMtLLcfHFzaRKprkx2wPXynFTSYkmqDwHyHe4SNFlBWFehFN9DIeUWKfHv4CC637SIfXOMgP7Cp_5L5.Y31eizL.rbz69tkRJ.VV7T.XTkHmnk.M.Cbbcwd69fuwR4VngmYlqd.1fl0RNb5x5bQ1myUgNr_kaNvBA1ZU4YrxH1dYQJu2lN9s89b77gGzLC_wBjSTSlQXkckmkajxe8GmFdCIpoGTNkXqeOS0XcJuJLPYC3wOAiOv8.ldhsQyzdd5CGp9ZXS7T7Wh5WgY294Qp.RW6k8aq5DFyh9.fdJDaRnDRRuCq_tmSqbAYuOv.H0Sfh3ArzQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f7524e3c643ad5';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\/0619824753?__cf_chl_rt_tk=IC7nXzDdXeXoo0ceL24ADsebyMakEE_P6f_NjZyblIA-1739140410-1.0.1.1-QKoyCcGHJcoIZZ8TP85xdf2QGqjuYymEBAeTE3tSMMQ" + 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