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-039949447407.mit-edu.top/post/4361297805

  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-039949447407.mit-edu.top",cType: 'managed',cRay: '90f3abfc18ee81f9',cH: 'E5Ovr_BPPft6Wqt78EoT5P1.H6aONdTK5fw8h5Pg9is-1739102140-1.2.1.1-HUu9eFi1NfObDEhWhyDM98hOBTpJjpb6N1Qow043CN6QEfrtOPDDmYE8uiIj4i.3',cUPMDTk: "\/post\/4361297805?__cf_chl_tk=W5_bgco7Lio9Pfm0CRLgOOVIfZGhQng.PcxhfzMcw_w-1739102140-1.0.1.1-xH0JTSKqHQ8vexYZCH5IEb1PxEdQBMvz4umeXxl.2Pc",cFPWv: 'g',cITimeS: '1739102140',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4361297805?__cf_chl_f_tk=W5_bgco7Lio9Pfm0CRLgOOVIfZGhQng.PcxhfzMcw_w-1739102140-1.0.1.1-xH0JTSKqHQ8vexYZCH5IEb1PxEdQBMvz4umeXxl.2Pc",md: "CzNnV0z47pc0y5bVOKCN_VYnbDu1Cb6Okh.zOz9iZy0-1739102140-1.2.1.1-LBIKd2qi1RtoPwFbOemIxEZr3TIbCxyi0iol9aNwhS7Q6QopisG2xn6JH8gILPJQ8lk12uT_kk8yuYfE2wlI8NxAuiOAWnYl8DOSXWDyN2EdsTyMM3BmwMWsGFhD0Nn7lyp8kER4ai98DhBgerUrCFwb1wFfIb_f_JLYnUrQdV3Zbj2QcEYWrjjkzmKNZTVH7rjW45padKyILQc01hD3pmfr1Me0D.7A5G5K.SMXntBDj__sOOySw0.i528k.DkfNc3.kwfLbx6z4AXvLqrT8Xe0qoJ97iiyVrAjhy53847mRPTDPP.nyq.e6wkL6X437Lf3vjxdeq92mXV8vqU5sIUMp9LmNQLGTttzVGkeqPGfuqLWgq.pO.Yw6zkCGYQ9hvfMSf_Yx5ee0ej71yb.s9QXC.Kd6xGEI5.9mZVCIhQobPcDp06sxDWV8pLhnJUbFRKEY60g.wgFiNRZ1O3ePFbC__jaT8_GhC3WX_c2FKxdrS8qtFvy3X3bq6Leut_lgb5nLTWB0MFnxz7DVNLPihdaguQElbbMenyAqvwGvahinEcHReajB7DXXrGfnBLBRIE_bfPxeAOjf2iJ08XkHZtS1y0apBKXq89aBR.LSft7_fU6JXATHbk0qtOdqWo72IURDL3aKye6_Hs4XutjjWYv18gZu9g2uv9Fr2.Quf4jU_oXCGUch3CyUeCKOPcCqcPcC927UhlRIhRVtuZ0K8RIgYIeNFVmlO8w5z_HtkMQw0BY4oGf_ojWKx5KRXe_Ck0o2CzZbX4LzWgBZqQ1M4XjNygWAx71R1.d95KdBzndDUAQcDzYeB.wW8YKaBJF40vED7k10DKEV5IUzVc0K5ir6Ql8MR0fOMdYZTyTMBLO_NtLr.1wkE2viR7QPUChEIkUHCHtQ0rFv6mQ24FrqCD.gs_iQCtHQfI6wzQP9vjqXIQXr0IJjTeV0mdqcZ14LSl6U8C3NUMfLWDIRvNgMEGnLMYId37TK7y20AturY_Th5OtLHMV3OX0i0zreScoybQmIxCI178OylphgodRA.Z7XS.CF1NCCHT8_GhkyGY2DnSLiN28_Ma87wDbTj6R9YCu.aZJIx3kelO.17mncetIyolsKKtYW_1nTOTtldYKqXL2xyVNQWsyt9rpTfMZM_ZfCMeDfd3PtY2Bcxw1Hd_6XD9C1INZ5s_iGffky174pWcs2S9eAJK0IrC_CuxeSf1GZx1cNv0fOxo09UFhamERp.eG7KC301vNYPPveY1EDYWsqNyQCSxB.copD0sLqgVUWGKyeBj7SGBGgO8hiXfVm_ltKxavn0.7WO58EJ_yhVtD_acnC7zhCmHSgGxNGpecUlHrha57lVypNkZFY1hPFcKEwBoXggkbxDiIWneaJjLnqqmUTT.wuIr5ix8YChNKgfjl.OVk3YticOKPQNKnlP4lFoft2Trdcmhr9yMraX3GCchr0n2TcMsipu69xEF8RelmgTN5DfVpEZt7iwBTaA.SjJChXIT9FsxXt8UDbzPU.zuiRFa4.6dzgzW.tZyvYOF5NkPsSu7EGzKn3_scqg4w3CY68.8tL2V1FVWa0eF_Xk6sUGhvWMkKDZh7nKR5kfhAsuRL3k2G_Oh8RCQ8zSTRwPJsDJYJqFVTMFhZpd4bg4fq9hyORmF27UW22HsRdFfzAKEyUJxH8cNzvCp6zTeYHJIyszWS_JRdkgGzcTifRFUFFljZMPIjnHZ_xn7NEOsnOMpzC3akzgj5IwMnufSLe7qPY_KLuCAK1aauqDLpAVPQ7zqcNQ78UnoQIE3IEYXyQUwjO3mMm1oDMf7wYKyuMIXb2Ac5OnmdfluW5ZafgL7o_KtG17KJe4hPskRM1ufL_Y5IlljZbqKCq.WD4RtwkPuKJEd3l4fEmHT7hGFCzBreN6S4GfS.DCAJk.vns2bUXCb6Cs7D8CKrWS2ED93FmvFoBUgquwl5O1pYLorGNz5HlCOwfiDOQGbN3fg2hOK_Vsi2h4tEgmMgO.YU7fE.Vze9p7GnPhbFuIxCRbwuNS3ZIiXxoTF7__wcp3dL4tOrRX5hIW8THNy8AUKUWZ8nElk.91c.fxDg8ljKboWn.J_Flgr7lPXLYrOSkLnx_QfXbop7c2y_U63ehW4NrgI9nCbUs3aaw0pBl6pVq7_ZV6epIcEL5w9yTQTmpVVpBfKNYeE8.ECbKp0Jfud14CH6VNgPJ_7qwrRaiuPTTDgjexgvaWYgIPZc7pdk",mdrd: "AroVDgkLw6sJaCkKx8hhalaBZTWLutVCvgYYQmtk_w0-1739102140-1.2.1.1-c.PLgP1P50ZCO6hgLVgRl0eo9zaaSwZx9Fg6rXmKALaP0k8LSMuboM8.0MGAz7xnTibh7.PauGDD55ddexzA1egIJ3eQStX4E.2ju0uMsen9T552EggC2Zf3AFbBEXL6bykOJlTpJTxYFsuOF7gC4ve4sM3AN5w0hMgljXG6lKK3ThCgkUWpPAcM3TgK4LSHkEpU.KzMNWeXuj_VQv0rcuAMyJ50NUUKtXVdfe.R2Ucp.vm21o0.WGazBTkQAYY.44PsfP3zE5npRiZZIFa.wi.oSkJOQOr2IxqmNe2q0h0crJNFovU_3W4pBwegux2x0y3Kg7swXqOMZjtoOFUKZMy2olHAjdmwNmyExskJ0tze19SC5Z3dMXMWnlmmNHLvbcPEGYQhqBiiuDImLs4PXL4DKYNSTTD.ddkWTCHr7aTtC4rhwf_M6mxvig8OGNfMa62QCDt8BVVc6Anbzaf5eXQFuvOKJ53uDuterImFNgVZCWDHDXIqx9rYlFfAOCYIE0AXNUXB8M6zOHfzPK1VBqkrUeC8fs78m_0fe82Kjq65LU2zRChtasmtizGiCPkGGlKQ.JcX8cmjuzv2AzPJfWdjEzdnzAuqINEvKIhLDFKlFv57EgHoL58SAfcrus8SmTrxGa6TVQZ2jO4Bpj8BT9KEkVUSQkQ_ULuB2Nu1mM77XqmDRV9nNhDRDfytDo5ZsZwUQJy5b4EzwaMv786F5fROryMLM0uPQlNTuKS48rF2xMV0XVKXHkA9H0ZIDbt9pDz4V8dbtTl.xIpM8NlS4pXD4nQVa_GCKhQHej8QE9PBHV3zs4_Sf.TE2DwQW2UCDrwtbTgzK6CReqHpmeemKjvXA9xCrgZKKeEgbCO_CyQTlgacA4MtyP0tM4OgC5O4KBRquP0LuVeY0qe_1qDfZTR6.UCfl4bEoezUF2X6uSgjSP_NnMdO6YPCdBbV7jgZiQZ4n68NveAPgexNLYVtZ4C4k56NBSgWkhNbEzk4Nxxxu_hnhxeGAHAVlAqqWS20m_RCLPxovdJvqomNK77o97Th2gf9ChUlJgmc8dE3_heMJke80vFSqQ874CEY6lf4YOFxR87q0.JZh6AnHskvbgq_ty7ZMW9_2amvJ3RP2q_xUe2bk2rp2AgFaE7IjnXdeHjuON4UWFbVCWLK9hsft.EKIYSYUkTU9UkU5NLATmyWagVNKeyfxomem3PhMAHT.V.CisMgNrc5zjcOrpaZM63_66k8viLAyEfu4B.9AB6cdHa21E73NFvlZM.Xi.90FG6gDvXZKLrau3oHhZ4YEhRprCk1MeeYF25iS65NoIzg2Es64XH3DGW0ROndzew3glObnjXNvO4Osf40K2xN4Mc5s2Z6XexYBq48oEz.GhoQYGyOqiNnkq_6JLUHf71hRhjN4D3qffRWru7D9tJ.Nq1RWUudaLmV8E6obgPZmbOrBiHfrOi6AjHVK6gqrQxcDXP6tpVX8iG1VLcbq4PJPqTRPdqCJHoF9MK7LMo3uR3PZg4.f795_j5FWQdcDJsg4wubbsAgtKGeR4YIUGRve2gJNZFuPFPSfXuJuuKYPsP5.8W7wqRyuDH4DFofcRAK2aOGltnmwtIkVS8o8IgZoBErAhvCCvETEwCXT8LLHQ1OSQFYcz6XoPCUZDLdgtTRdK7iRcuSyTqkrWkjUX647wNmF01MYBucsh7yx7H6N4EeUSPm0XwYT7IWlsMtIhkc0DgmnWqU.OqzL8COQrRbks6L0iEQCxjzLcWYiMrT3f_ta7FeP4t1z8Mw31GRKCr9EXNuDzBrjLiSEqbfwFxKr_wOBI0OAt4WDfPXr5Y3Eog"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f3abfc18ee81f9';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\/4361297805?__cf_chl_rt_tk=W5_bgco7Lio9Pfm0CRLgOOVIfZGhQng.PcxhfzMcw_w-1739102140-1.0.1.1-xH0JTSKqHQ8vexYZCH5IEb1PxEdQBMvz4umeXxl.2Pc" + 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