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-aff4uftkh.mit-edu.top/post/0861347592

  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-aff4uftkh.mit-edu.top",cType: 'managed',cRay: '90fcb8fe2f43c950',cH: 'GnEVWwzCSTnjKxJ_OlzYYeDWcE4OqeRb8d0pwJJhJJY-1739197045-1.2.1.1-yoIyuqmd9cymtg4Do3f5YaNY3..jBulZcqM7APw2GtoNK.yw77CxgdcReMDq.V8u',cUPMDTk: "\/post\/0861347592?__cf_chl_tk=sq7k6S8RLy2LnoTJNeE_mMK8uOD4qLgbPzAHpYv0tsU-1739197045-1.0.1.1-c3.merGGkKdq4_Dnm6rRa_xCkFSGCJe9Cfc3NfITeco",cFPWv: 'g',cITimeS: '1739197045',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0861347592?__cf_chl_f_tk=sq7k6S8RLy2LnoTJNeE_mMK8uOD4qLgbPzAHpYv0tsU-1739197045-1.0.1.1-c3.merGGkKdq4_Dnm6rRa_xCkFSGCJe9Cfc3NfITeco",md: "AI3VWcEu3SRHDISeDiHI9_V_GUUpDHSFS2coXfK_HhE-1739197045-1.2.1.1-oMcV5Sc5GwQtnMtrzDRPvop4EJna6x7SduhOnH_xUUKz32Tej.b3OO9AB3NGF0XvgeyuLXEmsXDRqh4Pqq_WHu9VE70d32glOzTm7gHrMlRfS8QyGoYeXpx4BMsQTzASYISnfvbMjWk56dEeUHtb59XOJVCZUG_w9lUH9SaarBGVT0odIpBPpj4PiETPY6405kySBEEXSYbzeasaw2MX6TeTwNpBgcLbXElKmhdyFDfnWOGprOpR2u9om_ZN3zCGTmc9gNym6CjniCSILtuB5l9fENDpXyA1AN6K8UJrL1Ruh2OvJp5hs.z5uVObyzomZ8mUte23Sp1K9lQb3c.wNwf62ZxwpdBfyoNsHfdYSEW7cjs3OTRQUuad52_Xy_n4OUMXnmZ.9SFxSwPNRILJ7vUCWYYSXJDIxxzxGX5.Te2D5vERIqXOaRkbWrfZxcdsPc_lOca3oIkSMoBxe4OBH67NRvemfc2YB02qJR4zaxZdKZobssvY9uvnsn9iFv6XZXMA2THRFjynZ.8FxdvYn1vFuISr9lCjXhJTzE7ra3xFcCxvflfC_9ENG88uMrLQrBf05HqCDbzPSpFPrVccb_wauG5Gu_Iig3w4.7APg84rdZsxoupGzkOrMU.xqt3KEf8Rmqy9KqeURJwxe7N2A_zlHCLsD0dKjgEbHO.YVfj51qpOoqs4qU3BZ_4IZkx_bY9j4v19nkX4kDxPfJpNAYFStEkuiMQirCzMnrcWNJrFyZrozniEJi_UWVCv_q9eES23DLBbseAnMfi4K8M06EbpMHvOfjhmcKZpzafjhHemL.32T1XbfG3eFB9BQZpYgQqIIN255jYf3_v54gAC5AFWYlqJ7b1XJbDHV4t5x208nAK_V1bTYwnARNkoNQYCR9smfxC3M3HHvxiOQbs0ROp2RTJK37VF2uAMfS9zqwlPJOYPKQT_S6L84ntrqWUPddmwwkjUQAwK8ijssGuP.E_zDTynZRhKjJyVO_0MWPOuexht15kK1Xews2oseh7PQ7Abnn4ycrRwxpFUL0kbfgj0q72VJZmqHTzBBq3KltRPab.SlRlEP_JmfoLvixSNlM6wSSAoBdw8bjdPkk8MzRki0lo9IO9vgOddFzF5t10uRUbp_G_05W665_SDQ03WSqwwDx0d01HFoA2RPex6v1CmA42WNOBhilx6f37jlD8itKD0SDQQoMk8zYV6Kux5MPAuTU26YhW87TNskY53Zb3EIqJCK7KTmhsDdDkNbHpbdPUw12AV4W4Ex7E6.RwwvYrx3cKo5QQZuSajV_gMT.xbD_uBiwOpzVYRugJtPIuBpKwAJHSV2nL4eQVCd4Xyn_ETcKGUJFUWKhklHInqiA1ci7Xtjs6RCD_jUNpxww8kfH3Shtvl5JCc4aoPmXaj0gYotcKP02kG9H5MubEcDpvF..9XnX_rejyPOBfRnvrQAicsyXlTI7ydD0rB97gIM1KHCRA9cAAe5ibixEFMu88MNAZ4GtVFuT2WkRng6XYSJyuzlgaIqsYtbdK6Io76q0tNSrkxhI0Nr6NnBR8Au35gS2TNFGE4D6xemBQWRKP047TDpu..KInQ0QrVryG.0ShNWcyy.KxjpJN.U3s1q.nPlmhMGBbFX6lswDU9B0IsXQGw2dguAgNQj86JJAyiEnv1Sy2ZSzs3J085kZSnThvyRoxYpZZ1yNQfhi77xA8XISY8nJvj5SMuorU0bJwMqfFYj4qhLXfj99G7EA_SfmNOqzZwrC_CV8Tanc776kvmI7UcFousLplfqDCC8rugnjYUYPcW6K6eDV9KZdsTbcgmAqo1im70RuBEq5aqtxrMPfsAfpOgLnIPUqUB53mf_DEdK5fyWeH.EvI84NkSKPC10_0Deioq4e2of9ag77B7jCaEgbkhdqOs9ztR4qLiqDWfTrjmT3tkF1TjwYfk.pM0XPtCGDB5AtVm3GhK.g7HsYorauRX0Cy49R6swFsKz6ZhP70ATrMyytfDpBtDQ6RQdrdkdeC6Dcnr72ISNGeLoMgWbceDRW6FQwMcIAdf.N0fRaDY_XpG4huadyuhYfRj0aZ79NX1Woq.HyMZWwNpvwYzWXbBsIdNKqECOhHHfeMIjA71EPrt.me8B5M_66U7F1hovGBQo83pcr7QATurN1eBNKOeaU8UlQlcue2ntjmHdYWLTfIjJc1mmLF0vtZ_QezzCN4k0144exHger4nwPtV56Gp0vUGagQ8V.oX",mdrd: "lQjI3lZY_z.sDDVJiD9ew.7sVdNF7fH4lecarkzZ8aI-1739197045-1.2.1.1-6xD6Q7nrU5.aBRoBK86e5kZ5KwhWLZVOpSCFUSX.kEapeKFy6A1tyxC185YSJ.Rz3XzuMS5l9rPpYbxwVT7Caskw7M_.hEbHJpsA2bsPtbK2VtwchTMvmd1ghXlZRQs9XG7vo2eaD4TMUERRFbqGN_PjKQm9HZmZ12okpOX1FQ4b2YO4pZSDj_Me35eS8OX47nZuuRtB1LncvQdlRNhGFNwHlbkF2wZQwOrzAJd1dcbAVJQbowVoaT6eUmoHmEHkgzdBYo2EgB_O3Pi.NPGg_FaMA4tGSXa3cTFLS2L7KkpcmJ4hAYSkD0UCwGU4Ops63.qwtaB.Ns4YXtDLG58F5rF4xzcXsY5OzKdx5ofs9csPbXV2YOeUksMHxkaESv8dbQiS0C3nq.Vugfg5SVFhuHdJnGYcqQSs0bT..6h9mqnODYSLbkXevMZLCBlVBy_TzIqg2FCHSIasUiiI1ncYTrVw66LQuu7CBQAsKbAsXuKfQeplyHPak9Tv.dHKaHbkkJq.D0nqAYTkAH7J1rYNkKfxbOhha3qxln45o6xQyyqfvcF9J5ymKi6BgGmM9HNwWbweiuFlbhPr4KCyhHMWmD7s0fHm1jAjI5frA8zLNb4LC2r199HuEVviCKSFYQ71HMfrqLAmOzbxXdAeVJoLRwoCdTKQQrNeyCHf8Lr7oWDb33WqTomWK9OVi4A2_Zj22qhqwtC_Iu9.7rwv7BM9Ei0_ZkETBcAfxTDes.jUZxDAXxLAwsZnGYjIdT.9xdLsrzTmd3XFbyTZJaLVlJhwfiCckqrAJKFfGvfZ__uUDGY3detL6RyfQrGv2mHoTPXsMAv1YhzMC3NTdZASPRaDg7PX2Iadj.REFRmgCP5fNciE1XiLyi9WF2PEuTuPu96COCCu953_Cmmg7eFarzDX_NvhwKjo16JFW1IGSfMwQnQkyUCcHjVDEcCWGR7xfbWVnUNw55DcIlzvCC8JQg7tbxjeCJ2kI7Nk.oclWkaoCY2oegQIlJFZmlDwEqIqG02TvyiZYs._V5LEdqA8pBWMEKsGrJfHVYBSzZ4OqLl6e7dTEc432VZlvbV5a4p7uQgMM6sN3wpTlplMBhuw78cDBSXo.SGT2l2R_.QcNXI1JVWhiBO3_6ESsLYfctS17._IRwcRgvu8U5X.Sl6CI9lZejfkQO1blhNYUv__rLRA8UqM2iGAKMJF7FIjVyfSOGHCbp9aReREHU7f5Me2L4PBkzbQL6LQkk_3nGBmq14liWyHLyc15wLkBQnG7T.W.kG9qNB.GWuZRgTs6PxYAWVnGxIZ8ijWmGbDuPuYkCTFYr5QvjkLqstZRqXI6b80.18gif42UoB_wSRlfU4yeft2K1lHq7EDYV6XEkoCMM73GKBDBR4m4LJks5h_nPcK.cZfUcFicD706CdXS_fm3wFfDrMF9OPNGli0Xgqyv4FiwH1yh23cDlSnJ4xXaNIqcAcip.QdhvVTQ5Qy4nP6PrZYfrgo6mf1zWvciELl5rEu7NdlNyY1ZRmuI1NqxswrkjLfrfzSUz_0uB4il_hh2_5VQwJNMxbTfjBjGUVMOwzxZYpFlFlrBShfkr2oOC8O9RhRyvzKOdEwsoTeump.qkGjGX6fZF5RaZOt8M0G7NWcdRJvUXWEl0dj91pTZ463Fo4f.Gz3jY8kjMvPu23rwvXcNfvsVxauxzYZvTCDNT0gw_5mUwXWCAYAmldIh8N77VRP2QZUp.Zsrdv5tdL06p0g_.FyMyrraj0YQg0dRkKONOmXYraF38mWGyNGV2P0DxQmFpI_B8nrjLEMkpA4ho2qRQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fcb8fe2f43c950';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\/0861347592?__cf_chl_rt_tk=sq7k6S8RLy2LnoTJNeE_mMK8uOD4qLgbPzAHpYv0tsU-1739197045-1.0.1.1-c3.merGGkKdq4_Dnm6rRa_xCkFSGCJe9Cfc3NfITeco" + 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