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-affp3mthz.mit-edu.top/post/7632149580

  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-affp3mthz.mit-edu.top",cType: 'managed',cRay: '90f3b1e8d8aec95c',cH: 'gIZnCkr75xrW2jWNoUHyampeY9PfRWfd.JVNS_2SpPg-1739102383-1.2.1.1-iQLLaU60ueJGuOuEH_fDHIrapFPEpl1PiltZkZHfGDKM_kmoN7g.lu9czLTD8e.a',cUPMDTk: "\/post\/7632149580?__cf_chl_tk=U1d0bhoVI4IBhepu2YHJ5Y0jBGHlegweqv8EOJsfjsc-1739102383-1.0.1.1-bskyJBiRv6JtU_HRuu5exM3IL45k7w81uEbAJHA0h6o",cFPWv: 'g',cITimeS: '1739102383',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7632149580?__cf_chl_f_tk=U1d0bhoVI4IBhepu2YHJ5Y0jBGHlegweqv8EOJsfjsc-1739102383-1.0.1.1-bskyJBiRv6JtU_HRuu5exM3IL45k7w81uEbAJHA0h6o",md: "ge1PnUaBqgyuSm93wZy0NM54qu_rf2SYWtMsysxfTy0-1739102383-1.2.1.1-jtiaWfJTwuZCBdcTr9VfbgBrZ8nPOdRxVPclfAk9.u8u_dhVoLyKZ_M5Qt0xo397_dNsnAsYWTZd9RFvSdBHjCdbCNR._dY7q.7RFFXR_x1g.Cl_J10B1f_cfQujGckk.hYy6SAVFNklRlqMvBL3CUO5tBQX6lj85lKy9PMGFTp_OH1lppgYnFulyCUubmTcwFKI8V6YTnwrEKBOgFX8xQlJ8mll.Pr9OA8LCM.5AClR7tWJJLWx1tvCZ0mbGDEAHlqZwp3mPshw7rWnUI0XrtqLAZfa.7FeznXH9rM3PyZa27emXqFxCOChbz4QpzvwZekLU95cuOMmrCIrF3dw.C4Hi69524lE6nyqlZA6DMPeho6arIP4pwXOLVikmfc0Y4u7ljm87N44hvng5Yyc_qseV.ZNoRp6z7pwEy9ST7YxKZ3IIe7vSQLqAJxO69dGoQ0aRVQUMTuJAvsS49z9BdayajqxgUHxnYfgLoglEFppR7IcZLXZ3WFSmgqx.7HqqRWjWpaXcQvBgM9Q9iwa89Em3us_9HbkglRpTnvEgCCBpgCtxeQ5Z.lLU8yj3FUFD6C2sv7rGPz0.XbffKC6xRrGrjK_zxhQt9D9v9NjtSki5xJjQOHJOUPnSH3Y73T5XxEBqgjzFo8UlzxEZ8Ox4lTtSvHGiuZBDBA4KZ8UW1_t_tJMkkthN5gQk9ULz13XirtIVDZZ1Kp97.EWDz2z.uMinF8mKgEWZ4uCwe4HYKlEwcCNKFGzqYdUePyJbAfq2H6OsTE04jlZdb8XS1c_g1a42pxwyS6RZM.KB48w.ZB4XNJlr_7XOJo9X0v.bTCWQFE7lWwsGo76xRbvPJ7ZzbTc14pX5gcPte4ziLp3uvc1nHJaMxhMuBbLL_bw8U00_Q9KFm4tyo0h_IWpiyj9I2cvtCqgs3gwK_YfG8QnHf9W_lk4Iz68h03S4k_VmZ4mVEEipys2VGoLxqFLfmWP_KGLjCDUsDBOuwVTMp6gGC_Ozrw.knZ_tzHfvrsgER8LrNY.BDqpZBwyWotueoGTZ.I2QVAgRNYJyFxnG4floUvQyOtrVWpED5.ezP7m2L4Z6TdjZn_0ztKRdmsZrRY2er7HvTVWmsvp.QVasce76_xjrtYk.6G7vpsnOXHydYA_vSi4R75OgSOOOOOGRNuEzUg.Vsj6Fq.Z8NJOuqMNNQLhKIt9byeoUbwbOuxjdEeFwco3CnhZPFChw6DWCkUmAJ44o5frdCoofhCljDZg2tRV2O5qr7BEtOp4LHB4zrlJEQ3u82_FRW2pzuKyUitWYCp4IjtLNf8gXzKnmGQ4jSlTCXWZ2eU9K4NHhp3OIqzsxvJ5osw2xLouFWJM0Ztw2UdCw_gPB0532ZsvH_VGXv13xmBumOAfqyzxxZAaciGtNTXelyj.CWIc3Ggu6IbI8Bv5LQ8EJn9JljQGn6Hu76_nQiZjvCjXow4exQcVMxIQFIXzsgRxxB62H_5fzpo0xQnsPRbO.fFOOnbzn5JX1AeodC7YsrS0ajQ8yGDTcE1RJtRidI_xt54.kagv1WJtB23bWsL01sKIxGEqFigzBhGg45gauKY7BPyWiEeIznbbNp.1Grj9mzrCViJfXQ3WfPSiaOZuJO9rooFvwFyl_LFH1L.8xPklAYQh2SISGljSEPwqnNL8_f15trcDekgjdp1BaPJr850qW8SA5h0hEYvxosPRFlv5fqCfm.e5GVDluRF0_7GR38QVfi20TAxKq_ySwCUAk7OymE65gzB02c1NxOQtnkvOjAFvdsMm1P_6oayeDATSWjnt5l8FF9II2jZMPVrk4RC.NCISeivMHvopErRWFsC4k2pgCKZGPF.f_KNdwrOpHteP13TNPCf.sb72eIHL.L1_gZqCcWs4voi.kUW_1A9QiFEZ9ootPtsHvzX0If4FIt8cmEh13r9jvHJcjcyONeN22FKouDuKkwWJbdnHDzgfqCw.dqB4us10JMzRarhy54nELXzAY5nqX3dOmOH__HP_gRcuN1sO0EOOFNSj9jPZtYZ6MnVECz01F591Q0ysMXsIq4DJMMAj.zXT_uXh99o9nD5Xell8.sIN3K2PvboAMNY7QhdQ3mclY1Z_33iCXP3BStzZvJqn1j5I9oQZF9t9g17qBA5v1U2JWyawFFXYNH4i_VRQs10GPTPC.RB6AKWUYkaSjAb0CZ429SeHHW7xmaSXk1lptVEfUxp95nfw0x5Y5QJcvDXx",mdrd: "vgXYHVXnt.phzU6Aw4sPi0m3cKuar3esYAhLeybxb30-1739102383-1.2.1.1-s7RSnxeyYimmhzRL_bHUlrwHbAAJSJaTvM48sEo5otOS1qqOOg6surtDqxhybbYJrnjjt2WkTG_FJ.7S.lI1DlqSCmZe_BuhdL.MyarajtNpnAuFH3fRl0exDeUyQ76tnCnY9Gi0FH_01w0E1eSzeZ6iWfj77bRBpJ5z8WU_IidGSdug3ZGmmynuH.E0TdYDWQBj6WrFRmTatqre2UfE8yDpo.lsGdf2o00dTp2KrwO7FwzS_dINxSfFyfBWEPPIpQxvr8CH5i0dPlUSg93b7AHmJJGXmDFGcjR8i2tVTuY10ji1zgwIfor.MCLC3Ttt_fSt9W9R.mWW8wBs5PyvNBOEhiXS7.JgRuHR7o36NQV1wFFjoTeRqVt_tbwh_DF0JTJ3Im_l.SOOhvnef50XB2djA43KzxBSvODB9osbeLW3V6TgxI.BVTT8PnEr4y0wXD1POo2SPO3w8ziP3ATo2njP5neGo4IBRsyYgbg_00UP3v3Kw4HqyZeH58XWF.j7QGVRxyaCUsBD.OKvK7bq4pIYpZko8Jj1I5Bw_TvCioNhQlHuNHbA7R2tMn9B5E9dXsMjfgthjGJUNPuQ0stlyXzNNZtyMFz01E0qyEqwRyKFShC_yTRHWmBYAg9.mpbgEAvwYLlPYZ.GzaTByP.voEmjcvLNXE98B.gJzFh2OafXOk8jeXUZ7nUsPeIRKHgEPp8UgN0rBdjl.is_1ZRo_BNH3kdLjvt9bZmlBfCs5KaIlEA0MReASkkBHiGNs_wVQ3umfETshHNorJwM2NjKm.UMdX_f.OORIviI8brXmJidOSoeOrAzUbIXOPikcWI53Y1Wth7o8SG2HqOq7QNwNG_vBF8MLfRbVNctvwE_WDx8IFVMCcrbaI6hMpIOoArUivOZzUCms4E4LJEEG1Rwmx2DXaz9oeeM7ni6ucjd.qiTSAd2Wx03iPG8XGvw03zBNeevDIMeLWvgxpPcE01fdQLkptIKtOXtyzaKcDagPTl2uTucs0HCmvd98Ghsq65d_9RerkGOhH1DIFxGqqztOUxbOQy0mxZyUZj1.Wvoh_mLHUsxEy6VrK3vmmH_bMbCQwAFmY2ZCUd6i89GuI_YhzUUukhmGetcIVlEs.NsB_Scjs77LlEoDeuLkGRhB9tmg2wlWUzjlq.D58o.D1NsndVF5yLffAYpjhnNZuCYiCmFe07K59K9pfxPlTv6RSfauUXnfCrezrUe1fyalZTmlmxAvN.xuZdy4yIQv5Vb7QgAGMwmpX_ZrGuAkdZK0lVKEdIHDaQuMbEO94fZd3fk1HypWa5y4RjPmFUTkORK2LUjEx6Ors0OahBhhNvs.qN39oPTH3Ts2PvbFV2PLfjvyCmlsu5UBFtzUyA3IVYOENVQHgEdNhhephkR4DLDXlKchNBdGWe6Jf6jZBm4d1Pmg3D.usQrynAWuChiVOV12bmiyZWzo3RJ8Rxqk6_biVZoedX.atNL3G53S_iCDYeJrdl9mEzs.xrBJ_IsZlZpeE_sCnm6GhVrnFnoePtXVzhEpPPfwHKGKIK7Bz2fUM3tCF_k0WOEN6nKycu5n_ZzT8ZEkpBQVI1QONGXJMjRI4qzbbWAkqxPkNn1k3P7tdFqoPV9DuyoWH9sv2Ohmav51Ee5D8Y8xbvlx1R3h1FLoiRhxUBE5Z.uX_eCWrbHxfuGn_yWtG5jaTwJZEKUfC2U_R0EQsVLDmKgerPtP3ZgN11KDzWe6BHOHPxI90n6iqJdddsU6Z9Yuh2Qv4w0i0W9rXHrAageFFd6Mqh9D4MfLEDxbdECKgTCXhI_eO0RQ9qVgdOrRVOJg.NzSN4n9o3VyeQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f3b1e8d8aec95c';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\/7632149580?__cf_chl_rt_tk=U1d0bhoVI4IBhepu2YHJ5Y0jBGHlegweqv8EOJsfjsc-1739102383-1.0.1.1-bskyJBiRv6JtU_HRuu5exM3IL45k7w81uEbAJHA0h6o" + 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