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-aff89y0c4.mit-edu.top/post/9845016273

  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-aff89y0c4.mit-edu.top",cType: 'managed',cRay: '91103ae1cc4e0589',cH: 'P4UvUlJpWHCxmpsub12M2Jx4pT2NO3F2mXtRFFfR8Xc-1739401595-1.2.1.1-CiECH_eyF4DVVkd8RfnGdc8u5cyEpBRj0CjOmAm9QBSHyFQz0qlfQ0UDQh5Fnoqq',cUPMDTk: "\/post\/9845016273?__cf_chl_tk=RLvlWuIp_nU4udPPYPW41crK0PehhO2H8lBBsTSG82k-1739401595-1.0.1.1-ByZYBfisFaUJnhtSF2nPH9DDHYhYiomgbPOVRLCoPrg",cFPWv: 'b',cITimeS: '1739401595',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/9845016273?__cf_chl_f_tk=RLvlWuIp_nU4udPPYPW41crK0PehhO2H8lBBsTSG82k-1739401595-1.0.1.1-ByZYBfisFaUJnhtSF2nPH9DDHYhYiomgbPOVRLCoPrg",md: "yO4Kckt.tDleedHM_aTuZ5V0ypI3J7ZUVsr0zy8UNyg-1739401595-1.2.1.1-i2OrJvbfOsR.epvtjA.UbfIgD74q_i.Ttf6TqUaztukeryAWuBjVhDGt0kLU2LXZvh1SBp3cIgiM1nsk23UIVRuUyZ9PsYbTwdOtfpGcVjhLGY.QKkJ0hx0tu8LHuYq_K_FfBzpONqs0.WoDZId0YJOt0YxAiwNeReWgGU4Tts9MRZJLWLebLjpXJbOKkyZXIU7V0T9ZDQZi87nrzJajqf61khKRrMdnkNx21k3g7Q2Ih.mgaO7HM36M0M9KUBzQCyxN5AzzUvhJ_rKw4.u2HEEbjmKCwJreoaxcC9cP0R_ZDSs0Q9_RBh7.jKZYtNQW_lYFL.bO5jkjNkTJDDUgFf46JSYY1SlFQ9yCU1xAO.CN5tTjTkXOCz1BnHStFT298QHWGnCbQufej1BW1c8XcASnT6a1sv9jg3zOjyvsylG2Z0n867dIWFC7XfhNFVDuKM7xB7TOpCm347Pm7gxL_ad2aEVXpO9yoESp_b2OAHx91cLb.X.ntxaLj_dJYYHg3P1t07cajUWPF0aCU9T9nI6CntEkyaWUa7hqZ4K8o0bTiPNlWc4lSsytdROt2VE70RdysH7BUzdr.OHYQupUWFo0W1XJhRIQMKJPexgsUQ2FKXflJ6wHxKxwJbLBf4kSvxQaUZsrlZs2AmyJM9YbFOS.DcdzlevnXSdC1.YxYLpHYhXdHUsVRmyEJ4xdik2_Dutsycz8TFBvuCDzt.W9HTmPEyTrhlsFTKmw8jDHf7oHphySsl1I1.D3jPu7_aFlfHofyTUNwmA6QWHpmuFNqmETKSAfTN9LJL8WYXyKWc3.M_5nBhyl2YPn5G3eUsj77t3RVqnXDN62dWsTgh5X9jMzuVFx.VHFxX1YzQbhTgVKq.zDxryjhEgGH4NJ5i.DOfcZAjUfWzh89HavCxjDGOYPBrdGuJQj9FJSGYUKUL.bV3Ap3X6XFWMV6kV8yYOoO8q6XyziZcN2vUSOGRU6ZbTowO_NsSBoB0svtMQes.NU1GwzTOarIIi4n5jXx4ura7BP9RyaqmrjLRT2McOHLiJRfeiw8U78nqA_RmtAPNff3IvOzHjjbXo7id6Eok3bgq.UPHSs7_RJLkcd5bI5w_zNf0QdX8mU.zpoxk4oUkyA8_TR_OdDThMzkxGlZACLnXorKK7fsOQdxJBLNJEToSfdW8GXQ047M4SQ4wcBVG6I5QT7YCuh4zU9s_RCf_qbwukE8Ys.7v9vqkOSMMDhfMIvBRhe4md9otk_NvX3KZuDyAbt7KjrzfbrxFhacxIlbXJDmwOXT2_S60MXQALytJ.Qhp7_JNcGBqWurfDkK5HAZt5WmG.U7fRvQUwUn35huXD1OB019m6O58FPhH.q8nuNpP.mfnOrs3e.mlf.nTuuLUeV0Bd7z96L0n6Xxin05Szsddmo2IAk7CxcOLtWC2.8.LUEoPMMgblKA1hi6ajg0SrW6.AqVXHsCBu6Z4zLaw6Jho43hhq865ZdbiiM6JK4iIZohOMce5KgMWpfo8Q4Bk4npv6eSJEMV8aeiN7X0sU0h1_AcqV_eUb2M.AgZy37u6.qfwq68mwEq5lc9PEgM0NXT2NYtoPXtuMv8p4DDZUhDkrnmNTVB.qBqnaHoBz4fdYX4KdlbSp0iZe07mefNrbrmDzNovX8DZcjsu8PiPD8hBcEEEQgDRnDJyyQHuCLIokED6Hr3O7jHlS_EnwTCyeN7aHZ7CdhTfN7hcw1CqVsQ7YOfhYRaJfyaFiHJXwc9U_k3fqd.ToR.ZJBC4fK9kZqaP0JkA7V87BYdB2x0dAKD_yF2U2SkVS4Dt3UcMvz_4_xjMr2Ft0jsgnRYmu1c4ABtIM9GLvJ_bgm46oC9Htxk3_fNFBuqLrOhMgCFSCnQyG0Cjq848eSzuUNOf070PKm2FmguZ5UmnOeXLAhEa_dY9PaJa4vQXapJ7C5acgznC2oPxSs4NZk26HTKBETV4zg1qEiFokZntYekfymE0YfaZRArcBf9UArXpmGJniw7R_DPM_FfJUVpG_LjE_p9aSP0aWDkImbY0ZrTEBICTADREAvn5z9fiD5lTxlRxCPZblxRzB8VM22Vrxk.Au40lLXy4rl5QNvsShCBsW0TECI0H7YHtlUmpA8AMjVQ98uf4RwXjNEAfmj75VjgDqoXYvxAQu4d0Qm7S.B5FyCRdi38FxbiBXkCDqe_7powKTUhNu93vq0ke7XQhsKpG_kmsP7.9Bdi5G3u26AOnOc",mdrd: "01hdzuxYDc1dKW7ZAUM_LynhWnTOXE712PDTs8ulIK4-1739401595-1.2.1.1-wU70wcxCxSAg3kg2MFx2c0UYQoqf5TIDV38gePfrGrg4LAnKiFX5lPkRA.P8HmNfLRYLaTXX7IHBLsGiSchpAabe6zvPvt.jST4DPSvVjZNM8.1C5St5dE6uJvO5d9YV6XfwCwBl9mSCLQmNYF3Oq8rLMm1OiMJGBtfgGOn_Q9X89xCZbARkfMbP8Uhuj5dAuaMBm8cbJK1orLtP_VVg2fFyCMALL.6CPt8__9G1q6CF2nesToXUPZR_i_ECJMSP.UlJ_PbS8qsKfve37_wne2TJnajlXdNzDqanm9kRTzYqyz8Q82dt2g9R2dWuWsLGY6DRotLvwL.fYTWJ6VtxOTX1hC.IZwPPvvGc5E0DKkkkZ88ATF0FscyQqaUtmSP2MWGxwdVg3YbTB33Z4NYL_cjq72vyOiA1Oqxy_Bp87yYlPcnBkPkqqEsshTSE6p..JkK4Et25HtqzXOlgoC.Y2_y0G3FBOda8pMXyrzPgEiNFKQ_.7zVjK9CIWMuJRaUvhOq47X0xVBkh9WtbEd4yLmKxbpN10AGnaB5pk_pFYoFdY_a9ZawGsv5loj6LpvxprVY8joJk5tNHjc0DDo.f7iLFS8C676pwQ9NPyuv_Yf7icgjIPVdjEfKv.r2d6yFGaors1InW1E9NhufmyHXApCfflafJawA8WZ8KgydVZy.dU2bXaMrDZYLRWGAj8ipi4TBZqUIYhJS0Ae6IkqKWOon0iHzGgOi9rcg9vC6x_4HjccWU0XwSStTlpkrLWjTa5LmRozQ.z.LamunpEh4IRTCGhw9TWy1QwuQJV2U9yu3YBY6NWODo46l2_yB2rEA68iD22hrLNwOHCRDl577LxGcdi.QeAIeWFKdE202v17T0eAaSjUGby6X6pHRa3XnFD7vVpbEhPUxKXhDiJ5EebvIe3iVX2VV6KWVtWnBQ1ivxixzaTq5geQz4lkpxFYFpYQIHFGfkHgPtp.5zgi_9AMSXzN3FBxaC8idCeFWJw5zilEE0hjuEjj.PYG0OHYa9RQIuc22HmTweVylNoP_Hv_PCCXP4uEGoOjxxamiz2XMaux7xHdWjh9BUXI40oZ29CaaY0DazzFIHvQbRERA8RvQkR6hnRsVIoYrAs8sFj1ChaIZaFwm8zK_LMAFLHfgKt7RVe2NZUGooR7Ml2Sp3g0bhk71AlbyJsSusNLajJS6JkM9BVYVv7ZbJXXOc9DI7mVigzMNNvFyd7hMDwE1W0ls.u9fR5VBpEuOgdO8E5pRF4yZsaMzv89P.bo4VG8w4Roefj01EoVXRX.5QnfgM3gg8kg6m7tvThh8LU0VYTCY32C214iZ3RyDsmYz5JHEi9a3pZcSwuH4OF9jJ3moqDpUl9Di1SATsc9avL92l.jtqg7RYm6uWPwvCdVyBKTAtnh8eWTRQZEd_hz_PKYYEZ9JC93jgD4QqUhJCAhE0zD4tTfaOYiCmRxYKQ19siQm_Ye8BAqsIGLXe2QhAkZj6njjOwrDC2I5JhjJNzZC00oJ2zV8jq_9UWrOL53hvnptcHfh_RsyKbr1Yzl53lhdb079RooZ.L9hesuSXqv0bS6TEurjdwZeIOYPkM3e283VVsb_kdhDgLfcVvyxDNW5tLswT0XmzSx7rct903522h8izbl4zCisflrknsGeIywU5NW_OkbOW5HD3FJL45tdgpq5rGgFG.5ZvA231HP0CfnifPrMixfmuut5m1Ko3wX4K_ek2KI7JCwMYSgh6pokaJV86SjL1iYo2qRCEMyIuinLfRQ4PZuS8ZSTsZb8yaeOPRMnqyaBu.V1lPgsiwYK9LQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91103ae1cc4e0589';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\/9845016273?__cf_chl_rt_tk=RLvlWuIp_nU4udPPYPW41crK0PehhO2H8lBBsTSG82k-1739401595-1.0.1.1-ByZYBfisFaUJnhtSF2nPH9DDHYhYiomgbPOVRLCoPrg" + 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