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-afff6evfr.mit-edu.top/post/1283406975

  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-afff6evfr.mit-edu.top",cType: 'managed',cRay: '90f7c6a8ec84828d',cH: 'C_SBHfDcXFbGrhPWifzfST0w8w8qM1Aw0oahxkvUc_o-1739145176-1.2.1.1-__o4vv8wIAHZ0i1W90hQB841WJVbBiVlp2SJ1C0U5lT1PXFiR5VI4Bs3Z5VcDOeo',cUPMDTk: "\/post\/1283406975?__cf_chl_tk=zndMS_UjK3k2sAZyw6OvtsPieOT_HczD2oetPZFaMkw-1739145176-1.0.1.1-DEMgyMMFKw2HXRGtTKrRlVVbCUIqVkCwRlLjP._A0FM",cFPWv: 'g',cITimeS: '1739145176',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1283406975?__cf_chl_f_tk=zndMS_UjK3k2sAZyw6OvtsPieOT_HczD2oetPZFaMkw-1739145176-1.0.1.1-DEMgyMMFKw2HXRGtTKrRlVVbCUIqVkCwRlLjP._A0FM",md: "jFdpK72Z1_OqVzGWyeHo8qV9k65dOKBh6ZnH6P5gyjU-1739145176-1.2.1.1-ptP5Nj2mGD40vNdniFHbd4w2TcsJ3xFuXvRe.FMJ4Ay7cNPbPzab7yqEDgm_ZTu.as8lqlUtiNPBIzUQbe2L1U5UWem4Ovrq8Qv5zlBPMk6e29znIEZAkHS_QqQbPmoQKWluO9aNEf_WcnVUY2INfoJheHvAG8FOq22xOiG61iLTHIuYbPovyxs3UP8D7pvzw4w8jIj2.7LDDeUaVQswRfgsqmlscr1cUulo7BnfXZpnmKGTr3_gnaIKiNARMwUqWF6l4lKIgAPDhdJYKzIFtStQee9XlPT0CcrzB.dnq.NYwUFkJ7jgxTv9jbxJumabiSGoUG5CIt6HUhIjUgpeNFU1BFLwqPVePM20AmXdzhNrxhA82OkzHo3vC0roCu1gsDDEZIrM4yfzmStDijWpQ5eKn5gFoqTz4ZCuBA5Z1DkGKcUJ6zNlOPoxNxa1j7pmfiZVIZ7wDp0cTg6fcBcbNmazghrvaXNpOx7nU9ro_AfLIftENRxhJ2fK7G6xfF58bHrAvJK86uXyiVIjhCRs6DeLHrvC70r_b18yIT7jbgv5RY0tnu178DIHQtkVa55TTFwhEeXQEO8tho4bmyHMZNN5y2dCrtZ_PZGmiwNQ62MtlQSVFbIF6DvsSw2QQtQOfQ.gx98L.L8f2rYnhzkaPoTMDjQHmIMRC6XGJdBqURhaTF8bWU9KFVzkqufVp1kKSuHIBeXhtGFK40365mzRxsfjSqSMOwndwK7iHPT4draBXletB.eC4Qfd9fyf4QF0FdHbEU0VNe8gK4ltkyJnJY9VTdxOHEWU7ci7bFB_qJ1M5s71UhWCdznD9rmP0UAc3xqazOvgXFkw0kDvzTqshQ58GOJwgZOZyoXNlM6jBQ36l_mLjirqGSBrk1E.RlWIB8.RvwKWm_tcXeWTisVU5jYedzvMKsYl3i.nkbHdA8aIIPSbQMlcGv781GKTKqLG7M2ZV.ri0uXoeDM1EfwWmM6NjlDBu7UaUzYGSrKKp8_Xn_BBHJSTc_rSjBwJz3coFGfVQ5HjJE5FIco2.vYHbEIVLyOzjf.B7s30CN8HdYoKJFfWf.KvqCRvuWFVlfIArthHXHZj4CcdKNG9JY_xuvLQVBXL6dW4BQYeye6iQacNC0b_crFBH3QPSFFZp_R6nTntBp.5UqO5ORclbBDRSVzaPICgumda4y9ndSCm6d.t5BS8g_MTjnRrzyBYtV.bDMWMHWxVYfc7iPNcXciVpCIme.se2CU_DcvsbSYq8NLbcS384MRC58PBSY2UMSdY2SCrJmHa6ApGB8dNYwdXg0w_uRPyeQ1g4TaB_8ooRhur1tMyVquqlMbGdyqpt47SU2hrQu2b960OptCkweQ5dgPD1Ea1hnWexOOKJjsQ7lDFobiD3mlIZHFn4h589sj1sJj4S6edpYQsVfXpNKqqPVpXrX.nVYDIl02BZpZw2ug4stTZ3AFJyP4jeZ3wMY8ZJY7aayS1Lkn33Ly6W_2nhvXQ9uIO2AfPxDLP.E5tPzfKNpVTQ9ZP2KAX592uQCpuE.0DHx_Lg0FbiRgeec7VcmIjKMg2Gcq8aDVnkpXWkeUlN2ByTZX3KGTPxvkwi6pFyFKJXt413S0UFK18ZmQg6i7kTF8SST6hNVOsJxLkC41m8Oa6LXV1pQw4KCb1VHWrbCGgR8g6zZ_RrF7ewwUWRgIWRp3DOnL2P_c.lC73cYueUbMEbcw8_MNmXU6fR9ovqgLVU_6KfQz_kbxBBnCOWDtciECHxe_c1YkhGYxseuHvE7GVdR9Ik1ut6bDuo6cfi2RV4PwgTjOiAXIjlnQGQVwOP3ANxxFfCSLrbWoapi1SGkaEpGV.94O18SfL1n9Re8cp7SbSeSgvO60lzhXY2Rsjmzu8KYsBsNotUpLSEidDXEjXLjjhzisrUvyhbxR4Pg.Lw1YxYDT511Kyx.zgt8Fh3JBS7u8wDIEWZr4K3lDz3SiVMpP5pDnpmYXBbK.ElMxSok1.mRe4l0UprDOGzI_obr.vhw9Irwt6uh30A8BlibjUlmjDB7xdUVNO6pek5uxwW_7Mhp6sc_6_WNiVYa3w5LaRk0ccdf5NHTcwEYYInvzpOjxAzbrdR4ppcAfoBXtj5FtP_whIncxoxsUydxLjIV8vfZZct8.vCIfCzxIYX2aWFsS16keZyOvBQBoDTOkBA7QSA.IBLK_eaCvvYsWuq_XvW2eOWAGA67zgcWF_lmnnPIAdRilbLCZtrRKE",mdrd: "Aw914sttoXlLMqF5_YsTey__6iBkZmRGzUYzLFl9aBA-1739145176-1.2.1.1-B0zsMXuTwZ1fFsVE.apOY44LvEbsSaY96vIgcltXNzCryHsGMvnP1PP3ncXOBwNKHufEf4dzfOoKGaqqlXCRZ2JLFH8iwsJoMH9WKrvh_2pnBvhuIG_GmrMvPVTzx8QRvLqeoev7YdjVZsZJBbaUrMM_HRPNO7O2ydjMQJyZqHg_ZStAAavCMb7hEdI0.fCck6HfxklPNKBaVuZu2aB_h7kPVOKqC3sW45.R5kx4OXmymFPTDDnhTCFWeOCUlazVMf05y5TdYMKkYjUQ_sDf7rhRr3eY803Oe6c3GcHSWj3kbi8Ws0jBtqWPqVb0qhdf8pbIOZ9ObZwLJviTyOn.1.kPpzlbdvCEs8QU24DrkwDCd1W_X4qQT8aaGyFn1sQwdX4L7Iqnt5aYHmXFWu6VZ6S1V5yWc6FwWcBIcwU7O_7Rh3imQqKdWVBqc1pWdtdw.6Pk58GhrZM9XKrSfJeRzpQ7CJAHaHzlToG6McQHsEXu880Kmb.2acor8NPAijXtXjgM2UD7.9AnDPvzVmNTpcNZHe6QnsSfdLm81.JZ1aTdkdhAZ5nVa6MG13j7E9QXwj17x_JFN6C_DXrO8dvRv1JhIkhud05QeMhwg98AM9xcIEzkGY4A84gow6tLt8mpeMByjdqVZ1EltmzVZ0QucSl9OqpA7CDi4qiC2tB1PmWaE0J.fkie6Rn2JW9UWC2BTXGCHW1rcnAs9d.HcmQ9iZL0nm4dKbp932fJKtH7vfQpPNOC6osAgJNbUIKPvm.Yi3F3HC_pYz0OMpxzlK_g7XVcyINZjpRqR87LjaDwT.qbknhWDqbPbe3rxaRHFVAsM26o1khB_ZPtfneRe1EMEaOGRhgrqAWYld.xWweK9fqTBaruj9myy0NX2X8ou3iPPduEP6op5GKZ2QDNLYc64tKpdiGCCATElxJhwAzT08jenV5WP96HOQYB4NkUilFWNm08_fPm_D0WO1OhjfpRNbGUDyKEnRm.GrZU.swgsA47nZRdgqMKkZtLmy50pwm1P9c0a_WfXP6dyajTd2AT2HoR0NAFOSTMGNuprKteiefckRCaprGv4IAi.0R3cUZlkNuMcAT7zG_n66d2O69UdvaYktqDELBibqHMTKCgoJsO2gfMBaY9YiI.1d2LB.a.61OQRq6NxeUZurxjkyigAbVDK5Wgzlblsak9H6KZxvQebhmV8y40KE9Fg93W2MX2z7zuO5YUQjZ1jlOkVYq.m568KCjUJBcBar9cyn6ymlwO2VlCREtlP4vIc8ExS2k831hnR.QdRuJb7Q0VZBCNfVduAd42wGQNpFUt.T.JFSrmTglVVXetCVMBuTxEmz6VETF3LoPfXiFRW0O9ZvlnHXovlSEyWfrfWNmBzl4gUMDQfzibXvnsoOdv3NJizTRHgaam_cDBGc_iqqhhLS.Jj.P0abpl9pOceLbIdX72Kr.MIkXauzPMt_ybodl8uW2W2cOJKbKRay77QOKvZY0cxFdRxKkdnm9ixYrk7fDnqSqH0yOJl1KD_O2XFu0Mcu.YP55rIPt6yuv2vNteVA3dmDC3vB6OLM3jLnZWV5_.0UQDWaZh9Mb6P2azLf5RZAit2IzWPqWLKf6ePgeB4RnhZJ9rKrpAcftm94V3xXk2rH_WpK07hazcuAI9iIg4c1sMGmTXAiE1l_Tc1tdC1WS5PUZXrH4Uoslz2gibJOk_TbNyHY00nvaHEMAQnA5aN9E3KFwqaqmgdKE4CbWmgm10_yvZNPkAJJW7WzbdRw2_G.iHicPQl6pHsYkEjb0fWWaL3rjUOKi0d61tF2BETo7oCw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f7c6a8ec84828d';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\/1283406975?__cf_chl_rt_tk=zndMS_UjK3k2sAZyw6OvtsPieOT_HczD2oetPZFaMkw-1739145176-1.0.1.1-DEMgyMMFKw2HXRGtTKrRlVVbCUIqVkCwRlLjP._A0FM" + 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