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-207559821745.mit-edu.top/post/6043289517

  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-207559821745.mit-edu.top",cType: 'managed',cRay: '90fbbc3ea9fb81b2',cH: 'UqqmkZaMg5ArchBVnvqR6RCUnJxqJ6lWffJWemkL_AE-1739186692-1.2.1.1-u2h2TbtLyXJ7bwV779h.yKdhUoAvW5_W7cIToxxOcvzEw7HyeEjbHhdq9jMhhgCD',cUPMDTk: "\/post\/6043289517?__cf_chl_tk=ZuJZC7em.NgW4xmFW7_UNUzMVj6jgzugF5qeN4_0Mc0-1739186692-1.0.1.1-QySM9gSWZ63Ff3GdsYPEnw_gyMmCIE3scUzbdTMcH_g",cFPWv: 'g',cITimeS: '1739186692',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/6043289517?__cf_chl_f_tk=ZuJZC7em.NgW4xmFW7_UNUzMVj6jgzugF5qeN4_0Mc0-1739186692-1.0.1.1-QySM9gSWZ63Ff3GdsYPEnw_gyMmCIE3scUzbdTMcH_g",md: "iVgs4ff3PzUSgS3FjUmMtlL6qrK2WPZp5XWNmJA8o_Q-1739186692-1.2.1.1-cvzx989QShtwAL7DMzEZw1nA1yQpAEsfaw_WQAEX5gIbXpv5_OXdd30hwdzuL_3tITS72NP_RCmoKotyJ0MuVR8nlHLcYRhD.pCnNvh4FlTdQutWLtkSg9q3JCxaaUQWWTsBWOqY9RJ2YQ0G2u_Iu1O5_yPBYH7.lX9fdTp6s8XoFKjCTj_JRNKdLcZ_B3S_pRCJ2MSf64koi7RGsNBr5DRHyCcpeRcIy_ym_UmkHYuj1dYHXmURO1M0Zl_1uFKxHgv0FGVoM7.l_eGOlzj6LdOFHlHhGLhrHuG2ymteXXoABsLooN25meLKaC6EZw6U0EXX_VqJ4o5kNtzYes8esi1bmflNlT48I6D6jywKv08gY_AVEPyHrgFEf4BCkFlmYM4F_fJHrrT7h1qI7uXV74pPbUWCKZKDHC7GAy7AEYKX5BmvDWBpOYwsIGTa4nzMez6ST5snveZSMcchZlfeJo0QONWybVNJCqjFzof0kExWWdKH6DghNFM3AKIrMO9KJwAqzzxdYeMx_jYDLjKEIvemOuU1brmCGhMuu67Zpmfu1TSpFSqDtPLy8PMxtyEzf_TiGmanGLQO_8WOm2C9ghEfiwwQhq7ESZKs6NUxmcYUbcsRWxBfP4SNhjAsJUZJuqkWjC4kL4Ymymqo6Py.sYXgcLc8SwRtnqwa24Bwlyq5LTHD4TF_Y7gyWRnfPrY.GEQPJ4kLSc4CnVESBNH4O8qGDtfI3FQFUH3UvBlYOBF5J_SmOdcwggVXfxRYMijad4gu2a62NHD9Og6WGI0B1KwQwvpUfQSTgQP._s3i8XmIcElKyjdbDkdI92eqOTWADrVoO48Ng9BzOzzm7CvHums74zrr1tKnOTf6QOU3uhmB05rwU6ryH7D7klgKmP0_j2zChkUEA0HKgO6f3_aahAP_8pkrZqHqhHRw6ndOCe7.IERlympiqUAkCS5HUd3yRjgcsS85QlMBczb.iCnZGfQXIz8eIYDYDGpFGTsMzCiMKsVAYhmspj1pNri92BUIFUYxzOVLvKaU2Et0EjcDQ12rZ1ZjBhUHeeKzSn_m7MOfdcfzxvO7r.uAn8SEHl9GTV1nG6g7JZU1_TCkcArk5yU5G687DvefzUJ93U20ksunUdO80s7QZ6sEkvm8px2gcFUTHfpN5khg5OiUhCmwq5t5SORwk2Yvkijx41j41hsACVJdC014q9nzXT0B33i80zRpMMs0XH.vqV8oWgW1mlbmY807LmwacEArpkWfDF0_Ytov89CVuBFdei6XSxZVyENWVzqe_kA6FaV236j_XmUjngDGVfMRcNwa6YJJxo0kwG9NQ3MlEmTce7ZgDgvRF4wwq3BWF33fAIDhGuw0EuMyUpWIH6h1B_XQSlfVVq6dfkB6zHD6vcKHU53mAcrrDNz24f5fz.ZYJ46HK5QmgVOC92aQLcd0vW45eZsEDbdTRNr77PjBT3KMiUi5hkiJwjk4niSU.TCukrSdhobkgYpIZsCTckUDqPc5.45B0QdyKXSq94gIefvjuOW8tTubZH.mKFteW1FjjaSZDSKoqJwzBHXt1OvbtbbJvUYeTeRxXr9trjl5y8gAP8kAeRUcr0Jtmlnua1NGif8YzZfxGKZGa1TISjmJnYJqHLFArrlewVsEz_1DHVZMS3msvvuqq1K9.kKX_r1lXj.nAzG_jbZ6VyFmxaGhkXg0gc2w30oj6zI5o6f7fjugRw7lv6Y8QN_AXIlxWKd0rmT705qdnPc3zw7c5bNGwEc.dhtxUYUn7LfuIrXHKa9GC3yz3aZVIu8tjlwFrO9lkE3ZoGe1OFfao670c3IXY8nLXvghArCxlWgGjt7OZLpjuIAGrCCIQx7Sme4dzL.pgH55PWycCOFqfh.D.PzzKrrxt4CxdtVbcz2vsF4f5nXAA2UX5ok76_zfJ0b0erMQXspLMUNTHnC3I0Clr.S_44fyIPpX98FAbZrSD3i707Y8vJDEezerjd4073bMShBcnpI22hcbsXGrR0gpqoK_nxGTuLDoSZNrQotpvF6vLcNeGx9JIR0ALQ0kAELd3RgTQgS6mk0NMG1BzZ9ydJZM6QWC.3uDETV5KZwyxIDR2Q18mCg9g9lw3OLASTTqtTR1NTUT3Us4204jubAHWoJOSNalxPzqxi3Jwj9nV83iAQnlglrMFG1npsZMcADHJmN246Z8YIw1AjCuGfem_l7i5d0oCQEfKbFXEZygSAFXzvjBx_a8vmhj",mdrd: "1hGdnAWdWJas9PzDXqcKXCb_TP4RX5JL.xMmNCJqQUE-1739186692-1.2.1.1-KPAaCsa3an0a0G8zWZKFi5nG00LvLhEDiSKlTTgAgAOK7zrNUzgzpMVjYiIxGeDI9P8Q5gOZcMbq0WlQ6bM8ANZsrwB.6XE_ouhwidWJTXDzBaRADcaZ_.0FT5ZBfvQTeA3ljPcqkLQIMubzN_DpSanZ7tWNkkWbu.whNtSwsPqd2bKZst8in.HgeosOs9Qrq_zN47_5CNgSomyTFRZCXbrxii0tw3TOepgrfpqIRzxfQoouX2Q3nN.ewtkVsGwI5x4jOxhzWzyMG3iFoRiKtNZRiPlbXFvNmQoNAw.i28sFqiv0XF_YJPMbJzOxR2inPtbUNRa2pqnUa5cwcJWXYhR2jhSy1TCDGuLfofCDzfRjwDURfgxKpwEdtb6d5iH4pXejwzWXUdbsrzM_Cut9NDhldTKgkVCA9yVJ7AsM3fc.ijuDnUrWdfKK3tL6SSi_6NQFUnpSYEsGeXoQL4MEpVfT37rHhXIocMep36b0ZA2tLKtrtbxX1VuakhU0PRIMBgyDLwGkGbxTBynCwd0MQbZ95V_6SEfuwSY3o2fqT56knt0K5zW0IuOe_e3r5UU_qCXDaqB3jfiGUh6nmsojOTQzW6gXWmzxLiOACoiqw4hEzdCJ2VTgShNkd4dl_8iunZkL1b7jKCcK37KPGFZfkysLmgVhlwdtpGHNaUttVJRCsrJDux17LWiqxsJdSuCswI9.Rea1z7pmkIHcttSDLLcHkpCFyEFJQrPH3Oz3Tm6hQwX.IHd604N.LphmkkOg6yNTqyEZ7e56DjpGdIp_ofmN0RoOYizCZgI6RFdESMxVENmmKXew_kqCF79isQX01SFI4dXMnhWZPhuxfSmVVtCM_WDqgJuqyATOvnUZ3B.E4CnPi_s5DW12gXnHzh7lOfoy4eufPY2o2aDm57yhK1rvmwVH7lhg2texXa6MzpmCQlstAlWemYXiyyLxhsH8qq_mbP4s2__8iu.AgR7HHJFGibJ4NtIlndA4KEa9GyBAHeV7k.pWDnoEgQbpRzx6BfFsiR7_jpQNLWN7XM6nsKQCoaULIaDrrUm_P9IIqOeun63LGht_o5fuTqDYb21LhetoaXDd9IsK9Wkla_FlAcbfp6ek7ckjE38uy17aq7VEBNMFy.Wbm59OVs9EhpO6j27yKW545QRn6CMEfaScix0X930uXbNl1BAUmSbYN3EZ3u5nPtSQb1evHCirDzaLdt7rrOXYWjggF843Zid78xmZsLhzAwMAUFZfD6NDC_WOuZTJnSyXPWd8IylwtDo6vgGKrkAhlEiLWLAq8rjg1g1P_CcKGLDTZulzzfLZ_qIfmhpgNBQ.hZ923Ci9d_fP6eBlWEoJUV1L2fUcgFJXz5FTT6l0RNAXbNKWOgyxY5t3rNZs4GXtCGxCHBUYsEQjD.ySwHJ5MK6KgKDK_Y3IoGxzu44MdGWR6mejwU_ujb7x6fvlO4VT29WUHObH57SvD8Fv5E9eGzD1zRvtKmHoQERBc.WoUtAkZrqy2kR8.B6VgqNrRfSwSw5j3pJSU5cG9kwr608TTM_H7RNg26vjRIFJ0SA5Sut9a72NHVFYoooR9trJvvLRejfZvywRicvy.MoKVZ7Xz3O4CS2r4cPapKUwXLjCOSEzncdoqUOonOV65sSoJ6KxVacBU2ntYkP3DaJLnorkBbZy0.IabnqPYcH5rAIUN6ohyZK6cJbQAu9jcvQeyvwB107tkB_8Fr_YJ.VpFk0rpNPwtHTM1N2it5Ng8ArnwpFA7.8jcuXo8amJkNd7EK5oyJBRYqlZM3mnMnMo7BmEcv4fh7LuI0odLLXDPCxJL8OZafR1pGUmzPk"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fbbc3ea9fb81b2';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\/6043289517?__cf_chl_rt_tk=ZuJZC7em.NgW4xmFW7_UNUzMVj6jgzugF5qeN4_0Mc0-1739186692-1.0.1.1-QySM9gSWZ63Ff3GdsYPEnw_gyMmCIE3scUzbdTMcH_g" + 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