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-affa47o4g.mit-edu.top/post/4723986105

  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-affa47o4g.mit-edu.top",cType: 'managed',cRay: '90fb2180cb5e28ba',cH: '3d_JC1WkoUKf9JRzimh7H6VV8AIKctO1jbMiwwRjXS4-1739180354-1.2.1.1-X6TGh3nyYsSGZOrXfQ5YuxZVGAu8n9TaHvsFOW1wQ_nf2Pe.fBFkoHinRoA.C0WV',cUPMDTk: "\/post\/4723986105?__cf_chl_tk=5GyGUePHi4Hi9keUibXMZJiWkGQZYWXGElB0S1KoEdE-1739180354-1.0.1.1-Pi4_LUH3IhultA3ExVhDlqGf5oOfcz5.0M5uCMmra_I",cFPWv: 'g',cITimeS: '1739180354',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4723986105?__cf_chl_f_tk=5GyGUePHi4Hi9keUibXMZJiWkGQZYWXGElB0S1KoEdE-1739180354-1.0.1.1-Pi4_LUH3IhultA3ExVhDlqGf5oOfcz5.0M5uCMmra_I",md: "f7ia5AttWLxOSpyNyp92Eh31v.ZekQ.4eomvVRRRz5Q-1739180354-1.2.1.1-nBpWa3O00OR5g.rOhlwld.Ummvc8Y5U2JMYohaQC3e3.J2vCks5J8Z7xSXoZLr.9XiugZ0PjCT46D3bZkVqy5o4SyWYk9APJ8IyipedP4H6H933J4xXuoyKbplcRNtbFzwv_Xvnug3k0gQyISqch4Sm.bVv.QeAVRHEza6ZLVGL9IFDt1ASRcrsgc8Z39EHhiIFDaFXO9IQdzPgjz1yz3tdmCOh138goaxqUciCgg7Cay2mBHSOxrHBAuozhkmLlyxjUeeHkmFWwdZ8h65MDXquPCLWivd2rZH7tWTVyr3IvYATRzjXEb_A.rSJMXgnpbaaO6P0ZDnZlqNiZCBpBTyXse89tgYFmbd5Rn3zbSyZN1P5VeNto4Gbgpd0tw7MyxjjKUtyz_UWppfyuTNmKzac3PPXuzm53czaazRhprqjOWkvRVCF63FGNPIFWJ3mCFpHR1KgYAb8aNyydUJNO8ximcLclFPL9Qh1oOGRN5sp.ZvDez8L3FwmvOI5T4B0.MMR7mr9vvZfnya9bGV8JSV1OM_mIolY5oYJezpSk4jlPVSV4j9QpHaW2Ux..gXhGdVnuWtJ9XYzXIcJeR.jLOORdcPm1vk6aJdO.YRqsbgj3rtlq5NuonUz7kNzOYoig7VFjrt8m6VhYIrr_8axT_uH_SuqrhQRV0iKZ_aQioX1DxlGATcGOVlt8TJkEDsbMDUSIc20.DInUQzZryFYS0IAnLxyUweCbKIVsrvG1vfYZfspcFmg5RZEkP0roRBRX9l.mm0J16tI8WULzQJ6m9L7q6.6KDlhHnSL8G1TYPdUCBHNklBx7C6PxLD72VZw3fAvxWeYCn9ZmwZBx2BQEpr9FrI_hod6RS4g1MASzRbNJ.FOUUjjgTXHyMZyI_h_IF_Nn9dRD.ZJmeYM4B6vRQD5G6ihoOpk9HTl6m748MEFZ2xEOvIY2ucVVi0pNeZQsb_QPVaGH8C7ypMjFScq8A1RqYiGQb_hAMqgw.PkdQXXUMugQNCznBi70hEOISq_ggaCX4c8vEEb6GIp7ldgafBsvcNzwy7eZLuVVFHFhisW880O1XF5aRTTwmB8vlEeVUg432lt5uij5AkhhdpWWFe3AXRaJkQVBIu.8Onlom322YkGLG3yokZH4paGXdgsW5ibA4n5yoIcEJQ46D2gRAAkCbAfcwOzHQEb3IH7krr1mVdZOCWZ019PgiCgEzGgqjhwgrJ8BrB6QkRL8c6E3.zhH63XqwRYSZXO.oddxHifljnGeQtMEJfqN_GHE46iGXQ_v3O.fy51MLjbrPiTr0ECP4TDPbRQmMGofsAx5dn1ISzMZcftjM0id.9.8FyfD3VT.T0m7R9rR1vNV3gGDR6Js1CbOxCrUqRfMLkCsSRs.iKv6QSwPIEDHNH0H_QTEAy3dBxLWASbrx0Km7kUyWsABV0HMK1zKELiBCWLMvL8PUD8LzeP2kIAAnZS7w9VU5L_qXvsxCtKlhL5rgq.ImDJFlPsN5N.aJ8YEqQcCBXjiADETWooL6rtWUMu2iX1_diuXFOq8KIYw.H.ZO63Z8zdkBQG82IN1PDlg9XkfmxWqVdz6ZAP2.zPAK1OJQFW8yM7SjtKy135KlM8KkxQn3SWgbs4CeDQytNp3ed5wNDPwYfMQAL8URtguZ.aBZ67YB1nWp.hhMk8yXsuBWHjE1iRYbIUQlG9tPPqwFEPiB3IQJT9msgQu7BTNe6.4lO7NjQiTVAQaxcWhZf.yuYN2vKOkSjTs_5T02GPbRXGZHiuZIbYMIHcPmHfpQgKE1uneqRnUFc4arBYjRnMhwTjAXd9bTeYzQXBZ6tW_VnV9db82XPk283ME1.79_QH3J8KdXcXZYkPbF9mTAcAX1__b59Gd4jN1_jfgHWpZ5057Er448Md.TIoS0k8ArsQ2EWHbu5FNnBAnHzZT1zH1FwhpWmDgzsfZVgmQabRHBSPH_GihY.A21SETf3HKvdXuWH9y9NitqIfqIzPcvTjTW5Pm.oobsnhrIQHBtEyl4rNH70._Gf_KUnp7g134sjf9xu7Klz9kwE6fqSHdpd_2C8Y86y50EoitaIXRLGmA8ebqMeYwDeSCuqh.5x_W6ojUJOzXS.ft2MMBMrdc19rRyBAlYcccza4KUyy8J7WhvqhrlJGwx3.f2M4QaoYhYurY70w_0MA4GOMTJI9Rr6VyL8DQDp31dYyINx5oB60.ntaTgoiLXZuab_vqZpqnMfs2UOwK",mdrd: "iGMsWNFaDmXssd.G79bRbjsGAcT66vPHs35CjxLQxAM-1739180354-1.2.1.1-HLBbyICBiPe780Sue2n5X80mMPWuqtWwbuo0AMtv4bdmnUppW8WOhEyLoIKnpPwbbEHm.rP.KPx_YM8gL3x2_A7nWmo5ntjxYWm41qxdNoU9zcmYiDSY4DoWljPgi0XctIt.XqzUr0RpAMESm210JRhhvsKNBpYbiEijuPU6MbBqBejAjDZZqZ3Nx0Blf9xLGAKPMUMrrUWWqjPqjhoTz_5oSO5dzMrvKMWJcpvSTrzFJCHfSYkVm.fb.9Snq4PDZ.1jj.uJYVqdQYH44kSIxL.e3D3ACsUW8_lSlE8sySr1CQJ.q7RlEtKqp_4TZ_Rap0M7Hvxh0lKCuXwnciA44OaqC1ykaAza6JpgVLCCi89QzYjrrXgswnM_8DnfzLLJGTUhX1XGjS3GXgwEI.2BpT55Lb6Ma7l8jrhVyGuM28d.Sjxb2YTIKhNhYPxAdUSAgoP0VnCUhH6Zj5FgHQEvlrjkMwYTU.k7Vta7meyrTR6nPMJId5wJ4XdHcNd7jeA0SBmcraYPL51skApXaoTnz_Sxp0GxkDoPzRzfChy3OVx_8L2VnL5ShSTeE7USzLzsIY4Hhh6mmOVN2HuR7uPUHAMjzOWG7W5TtbpahypmjjBcE5R3KKdoPdkapL4dOE4qGdit1yhOH61Wog6WS5yEPpEu9shTOsJKTPJzvn0TR0KEDtLvdHvM1Qc5W8jSReiiEm9uhXuhRhlsEO.05QMDKB.uzCQh6TWCd0ngaqQtJ8eHNfpdQM6jV1ErQMm6cjiEAH4s61B4N1Mq9YVfSjmLs414j4cZpJxJ2cjkvg4ap29Zp4naMiCEMjphalMTLjnDWaDUsuExMUk15WttnaxLXudb4BW6vseQObS6NOsTmmRqYtBEE8R24Q611YA8knyKH3tNwO7Dyvyb4wPF_tor654hcHbRqSjedxEMAz_I9LBhNo.wdNVHfSPP2b7UDel.0burvhe8kNpabTVNIVBzUiox6Ifl9yHht48nJ7yTTV0Q61b6aJEh_1niM_gYhqp4XuhqdJ7p4CeeJRuytFBHVx9cHE1tbtFMsRvEYo0DwTLsdRKiZCfPzHNVr5Ppi9dvX4btYJBYuKMNrnb4HfiggHIsIDr1MomIabNm9RmfC1270DHdYFjREqHaE8qbOEXOJB.bZ5rPsp_t4lBe8xGsg_eHQaXHc8QlqzlbFq5iEtzmIfRaQxuB0SlTx8L.JBxAIuMk2zuLxhspDLVOa8xtWqVb8Z8aqYjlDN2vP8dhwS_DXh4Wt0yXW.mzdAP1O7wgWcFmDeGYLHJivvcNKtHWPSuhc2E61UG47Z0OUiyTZ_ylBkr148zCXmVMIED4c5QoHpR1SkfKZyLyMmHMWSf9Dk8LUQiMCVjEyeJHJfMUP_fuib55i32ER1KnvBGCTx1HqA.RZ.fedbKy7Ye9gz0VmujkUyWBCMuOvTnnWuJZB7wVRqZMeNCkW4UgUEn90Q1U38ojmnOD9VPuH6cmS.Q02gfxvW.3mK7yh6ArC_sOpTcyi_nLdbyNszLMzSi5.NP4AohB93sU9ZtQwB72gdHVGTOrQI7vficHHcXsbXi6pefpwKgrd2RDvKDEHn41hjkr3TrbS5iWyhDyibH_8I_V0q.tnfAN4Sh6M1IJZwvNSZ4LiYl672_G23wwnpBgZJ3aTxprJpPkGJYyISLoAophN1WGVU0xe5Lu1zatLiqvavt8jebGBLGiKM0ncxkFyYYEi9HlzmvYreXiIMNKDFbWzrPPdt0YBfFHU.KMkX.jiKf1Ag7EhDvUSnoO2QObHd79pGvUaLH6shRsEuOmyu6TvQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fb2180cb5e28ba';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\/4723986105?__cf_chl_rt_tk=5GyGUePHi4Hi9keUibXMZJiWkGQZYWXGElB0S1KoEdE-1739180354-1.0.1.1-Pi4_LUH3IhultA3ExVhDlqGf5oOfcz5.0M5uCMmra_I" + 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