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-affpkhrmy.mit-edu.top/post/5724389610

  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-affpkhrmy.mit-edu.top",cType: 'managed',cRay: '91103e558a5a20d6',cH: 'Mi5DblogYoxKpTmNmnrKWSIQD3Qo2TJ5CUIlKNFIOFk-1739401736-1.2.1.1-WGGcDUBi68HClZXpkGhh5NwBHz5FWHg38VpQFCdi9WCQw.ivbkJoXDzghuUw2A7N',cUPMDTk: "\/post\/5724389610?__cf_chl_tk=uTyJfV7ty55xK5Cjrg0UPAl8XwGq6CwdXsj9HpyxNsg-1739401736-1.0.1.1-2Tq791yjfw7oOULCLlqsH6Mln5KDBfdoGlr5YXhQIuQ",cFPWv: 'b',cITimeS: '1739401736',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/5724389610?__cf_chl_f_tk=uTyJfV7ty55xK5Cjrg0UPAl8XwGq6CwdXsj9HpyxNsg-1739401736-1.0.1.1-2Tq791yjfw7oOULCLlqsH6Mln5KDBfdoGlr5YXhQIuQ",md: "GSc7jkrNTF9mghmFJI8SkYSr_mWzjdQFX3LxhbM1DSY-1739401736-1.2.1.1-XOkd6l0n7VuHbI_LVD1a7IY.mgMG_cRXqqx8nRsQYvhRw0_fohtbpbun6aJNya3IclztAyeuQgFdH88lAeLIEDyaMB5kyMmibC.rtxmlENoLEzPd6PDlpAr9g2bP6P_NtRTcYgSKXTX..bydSBic30lUhPkVUD7J9JmUwfEXBHdpelM_JvYLlAJ61RIyVqfKKJ74t1k7hyqYUs9d2Iw6YDiPtIIODKicYY_pHNxjoukCAwLW5sYJoqbNfd2LzvLXmqQRE4XJrognVaeZTIT_qVd21TyIbr9bPnxV26ogHU8B21H8uXxmWkLe2ZlGB1kMufLq8lnNcnkR7AlwMvb_kcDcv0D5d1bzbhtvUNxM0tGhWU9OdA0q2Rn0syXqufvZ3xdOfOkwUh3yJyiLNfxYq07xCVyVWu8rHGNxQBy0yqiTk.g9px1JTA1KdsWTfWSnRqZaIiFDj1S6v4A3QDMyjNHDY0nZ6RbBrZU3zoBw5srWk2t_vSJBvXX39FHIdPl6.mMVtOJchHisd7_3otSLCXO3QcM8aj.IvnKJRMKKbH_EjFgAjRDOujc0cT29EEGs8uxNQpLfzzzvyVOIGzOrFFITxkyy8PlM2uVfffKdUWumj5R_N4LoO.aByCevuPNfmIGR8Xr7azIGyZ3EvLn7930iRlqxO_zvHMiBlKnTQXPunw26X9BkgedLFGLKZ53nzz7kfo4dCW6fKiReI3uNMeW.qEhB3ijMW6RVn_C8f6KzcVDeHUBFsTx5XVmkFXGYHqLZud1eizWMDWN4QMMEq9jbrs_cg4lMXT2S.aM0awSJSAXiaNHVOgJNjDPUecrBEf15oydM5cpxDXB11MNh_yy8zvu2woUEs4jU.J6GK0hD7xLeCgLuvoF.EBx0jRxHOscIAeHcdSEt6GRIk1fQHHX63qYIjWRpBeaEyvaI.64bHd7nkQ6W5PGqdqEhoz3oGmP16YcF1LLycPOjUvjVjDQ7XaNogOr2d6wGl1fBZLPTdv0uq6PIpv9.y57E_RmQdszCI6CXofPzNrvAG9MELNPWn8wM6fNjui3QAReh0fb.G1HoCi3CNdv6VXQ1Akm5KpVZH7ObvjWfUcbyyL7B4CPBGc3beyBK6yTT44B4iSgeCrNlfcc8Wugt2hTnU8mb9w_w8dWj92.lyehb_z9ZrB33mFRQoDjzWMQtC4NmbyiAjLmKTAAkHlmRAB9H.Kc58MGh9TnfX4kqPKi_QbGyLZrExq8_ILk8dLO8YBfAbbraxx_QZKU51OpzG6XOCNnPSYXnG4CuMPUo4ky7PTOm6rlonR0jjkqT6Jqsgy_0W77_PI6VacBCddG90LwgCDJR5Ad_qH87XlM7YJkZWGiaCwAdLMeAGiKrbOLlizIrbKp4HDJlmPrRnCB1OFd6hcpr98rnMO4wK6eSWwdkR8iMxWhaCShCFMICwPIndGqyXh0SS68wFPbPcZc.mIWbHFQRVQtFHJrkonaEwAA6f3olf8oPVZK8ocGHROEr.k8fMcIznzkLVg197HqOvwj0uvKpdo3DoOW843k.s4R_arVO.wFnX2GcqBHIphaWKJQ365bfxvF1JDNTZ7yLUANQyOnyMI1obr1Cjqeai6bGoi4kFvxgyO56XLwzqyAyrtZpiur8pDbVB4VSLEuiLTIEeCIPlHpA3UDnEXxCxbdHQdV20xqXx6P4uK5D6EMncKPNCTLX2Sj5awSVc0.HQLxF7ET8aOihJrujD02vpU.rExfoUb9F6Y4WiVyH0FcGPvGbWrDt6bYZK82SKu5XliF6JI9O3xY6RaoImTpyXHZiUHImVyDxbAYX9YvWvQgGvVUyoMrs4D3jAFol7I_j32J6OYzfJzMjm8YhJMNhO_VGoPYpGOz06ajvBKZArjiC9oPJunwllLNaLcqJ5pe5c6z7XpPDFAUr9GJM0ZPGsdYM2YYviM7hHVTj.gvNW00.ofW4vKteebSeuEY_9vcyyhCxBKj5OckczJCMTfN_rsLo2WUlwUVpqf9KQs1Lgn0av3iJgGGDrAXnZ_PmNQ7lCIt3HXaCYYsBhKfA3YAUAmomoTQIVKoZouuQbdeVWdqvq_VReK2UXnA.VcVwsnw1zcnhcoeA45nAo4rWlp88o9K3FBkaYdpveHMpB3TJhaJoJ6.8VrLss6BlX_QwxrweQqIof8hvocXSqQe61RiqlQ9M0T3pqehig.7hbnWs.veaVOG75KJSM6mcm3nGW6wXZ7QtFVVZ",mdrd: "S9ZRtGctidNm0Dfw8jWuBx_ls9pKUfP9nCQe7ppT0tY-1739401736-1.2.1.1-.Idc9VEUDWKwa91IQS5.i6OvfWw3TgvsHsUfdEfVX.tqciArpHYuNrJ6IVT04T37gn.3uJCySfaQZ1Qj1BAfTDoATxL1oyU1O54HL.MqjUOwouJpnWcWC88s8WX5pWUhqo1xuXHfDbbgHZioWW2_sPBI9HJcxZtfPw4mXpkKAjmx61YWJH36buYJGztb6drZE3idVSpL5pYz7uMU7ZGjAirYKJoUsAE9MLI.jzqf4lV2lbe81PM5DorPPA0BJNS1glBDaa5e0FPL0bC68n44JtPMCVjZxDjGjbonDgOSYTp49gNOgj046K3D6O9zomXbGsBg8Rp8kXfFzoCOnrgOG8_mbnoCy8G4gCZSuY94Q0s7M0GTd3Fmv8rAyqiqVxV2_CsaHNDZILqmBi_rHyaJrbczgHDXVFfFrqvfCpIx4QSv0j5bGtEMkJh8SIChQpDDHNPtH0tFzNIEvTgd5bYpETQ9Aq8jvCw5_ehTzpYqJf70GbuRGVQfoJEqM9eTUEKPCSDt1oZOoQxu2wf3vFYyIe5s4r9JYO9nlb9e1jPArM64ynjCgTyugOPMBy4KC8_EuvUR9nBGzenQpmA8f19aBeDh9Ij7dNId8XviJJgdRDRQczicNUs2Sm.oQadRQdVdzbDEiIQCYQPwdW9.FkIsX2ut4VEsXna9iyB8lv8v3yM7TDEZzRIfxbmzC0UmijteJPHv.O77n7UvF6VBmuildtS6NyUWMOSEOuzhk3L7mYaLUNal681saRXQz8GbMX5NztPEEKav6eYCeiflF9X3fegUQZQ9WYDJN9jOGEq4ZmK_Zi4CFjsZWys9hW7zsvGXQw72ZxbJSKLS28v9obYq_eqTun5PbFGujD_vCMDEDHfs_GHxo9fQd_RG88TQGcP.aWvhg5jsRvYlMs_vH7GEjBdxIebpn9CVTK.QRuCE0qxRy5TqiCCV09iK.tMQIX.JopaT7GJjHH8y3mql4eRtIRaBlLXuQZLZS.rMLk74CbjMrWpE3zkGCm1j5RLeXma0dAgGSaaRdDYI2J8pihxlHYgK6Wg_pcNknuMJiTZCprsOrvkwx2l3ObrF0XLS.Yrnw5foW5vvYE0GHm2V5jbnFaBg7CyK7dOxK8ASrCw7xmDYgcNI8TxuLlcEbdiupmDp_b2StFdvZoYkgL9x8m_L5_8JYpj_uLpkksoCyGe_7RhyeE2UYIrUR1.tTjhfLfG19Q9vKFfZLLibSU5o9ws4ceKxn9bQMzdMY6ugpRjdX.jxjhyOJpUmaTxc96DjclNQpsGz8mjWO0UcNDB4tyuAuT17803f8HVXKI4BjVaybFtrj1Yu61W_jr99laTTb3gOcgDm7uuIHPqP92SJ7ZTIouIHqlWr.v4AinYvHOaif80_C_lZ4tC2pRcSYa3Uw_63UD7TwF_3hFrL2ZC9nYYj.O6B8ErM1KY2lcq2kprbCF6SPMt7z9UxsULfxHG12I4RaEQ3rr8fNfROpUCNbo1nieHToPmSo.HKzGK3dYLC1NwZylkcnpvtsr3i8m0ux0D7FBXdYgJKDVCDRh8netpGBB7jjxo3THTVw8aA_jYF9tLfvtKV.ssqwxCEJ4NVQk.ADRZWkGy1us6wL_vxvqh4lVySD8042PQkV12C1YDPy80Th5dv61PGKKpnQRLq.fWrh1sEkPd_uIjzClewkqwctbDyJVCB5ZCQw2NadgidB.5aJOkT17SjWApc8uaL4fzX9l8cQ4C8CTPqMHpaQFMlLgvRSMJ01R2rclwbb0AE1yRloXO_2K49qRSOlhiR5fjJ7G.YyDhGH2IAVXddPGfjiaDlmmdrfQQqf84g3DhcgBY"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91103e558a5a20d6';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\/5724389610?__cf_chl_rt_tk=uTyJfV7ty55xK5Cjrg0UPAl8XwGq6CwdXsj9HpyxNsg-1739401736-1.0.1.1-2Tq791yjfw7oOULCLlqsH6Mln5KDBfdoGlr5YXhQIuQ" + 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