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-313779493675.mit-edu.top/post/2840139567

  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-313779493675.mit-edu.top",cType: 'managed',cRay: '90f2d467b853c93f',cH: 'p4vergc0MRdpoiQGas1ycQott8AlN4dJ_NOnAbo9JqE-1739093310-1.2.1.1-fdTI2n1gX.4_Do5J8F4.Pcaafd9tccyzI5ge.zzFdTXVh73RDPDn6PfbXRao4qjM',cUPMDTk: "\/post\/2840139567?__cf_chl_tk=zv1fBxNGYF_2zHoo5dv0F.1ot1fbhzJGkbL99B3on_w-1739093310-1.0.1.1-qo46siZ0eS395AbpLWFJN2rDWa_Uw9tSD.GMkgPZ24s",cFPWv: 'g',cITimeS: '1739093310',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/2840139567?__cf_chl_f_tk=zv1fBxNGYF_2zHoo5dv0F.1ot1fbhzJGkbL99B3on_w-1739093310-1.0.1.1-qo46siZ0eS395AbpLWFJN2rDWa_Uw9tSD.GMkgPZ24s",md: "aawNWXKtSqd7ttu.BCJsOK_DXEnZjtWkSC0AxeA_YJY-1739093310-1.2.1.1-QMxFv2TxYsPRJyvQBpvi4a8Xiu7IAHBU5UBDwQgv_M5RgFruj6Wf__UQTwkU6AIRKMW0fvQx734QzjaGEag3GgqoBlKyKTD36xN3lzPbn.QjtOkgBR8cxr9ZzdX6cIGw3lxDmDwJrZOI17SD8FrsiSofSA75JT7l9EWzTX9GQxt1vJSsdv3gGe3nXJMNIg7JQntpq1rnc7FoYfZwr3DX4W_zwdXq0ovtaPLsguh7XNkVGCVp6j4F20Pdys0mKrI7qreeXQbe_y8Am5o0oY3ozWwmjvx84_UMEH3mC_.IeM87JUF1UwCq6_u1Ay0zbJQ9.90E6DC.w7XWdXPlfkNICKzAKuX3T2PESq3wgoisYVL6OoePy1s9Tpu4ng_n9x2FLK1a4AI7L1MNw6p.JTEab5uWPbpLZUoKrok66n27OkMVE7dDRNpxEUhlBc2OPnFO1n5pNjKa3b0hVSmWYtdot7lK0zRgcbL9m1pEEXWK_Vp8pqaIIu_CnY.V4xnUISIfNK0X0qFp17fshnMgK1mIySyQH8Vk91lj7_yNAoCQlH6YK2kKKVsUeMX9WCekcyolTvjyMNnlnl5p9utMi7wHGuZe09JjVGGHCCe04om7ZB1XUsnh7MglsaGSVZRt0KwXMClN2lDwAvH7MW5Ti6CfOlE5lUqeLuKz5cY.8IawQ9x8HDOgWr956dwse_6BsBBFjKs1MA2Yg7YywiMyf9M_OtjDrfXpUIBSjw9XRKETbVSJsV8q29xHL8xLOg5I9c.iolPnL29AYIgYs5Jd8gQNFG7L_2mYlWTVOYInLXcfVkuNnLJUGFrqtqHi1ARAzqYRquqDH9tWdAe9twyupU9RCFXVmpRKK7tchzWxNrbhqPb7HWy6Z8F8QrDtpbzGafIJTxoy7.YBHMzEhVaeiXuA59OeDmnFzUQv1HVXTQaUtAIuqdeI_G6b7qbyBcHHEb2vzxxzs7k3EYYLOCtmIcvd8SdNDsAlIj6FvbogQ9zTHd6EHCirXRt35QHUZwHCfdB6eY822I5Yeom9tjza_kY5rzap3bXJmZMPnlFBMJqwGKbU70mvIiSzHxEVhHzp_8fu5q3LFp5BV2g6I1pksISABcHguyUG6Wdt7BnPzwA66paoHE4LDVzLWk8Mcq.LZqJ8i0eEm6QLtFW7WLqGSwRlg_K3ji0wi5LmrDvQ3Ac4LMPWCSy6y4pj3nlslsdmP4_bm76eqkidHMXYHQjWRljqwrjIBKtzDWdXBBcp9kOlDl2MW8wR1b.foupgK3tIQ1.L1CFfF.yLeI71TsAzEJuCgDP8FNkkmNXuWajt4JYXy3hVudjRfSlba482nIblZy2E5hicRD66NmVbjZlf11nYUWX0UH13c.bCEJFQ14jbXhnInX5J3MaQSQT5dsl8JM0JIwOTAaecRtjj0B5.OTfeOYlxFVfz_gxdvMuqHu7hNpRW3tZgXFsl63_gtTD8Y18.KBFg2IRM3emgtSkyzWIB4zJaYou91sul65HcZJ8ir6yqVAsVAqHhHR4P7npVx1j.iqvjryTW9OalIdov1eXOkjcArw0qg5Sa8nAOTYmu7BWiEMx0x6NjEMoN2JB107dPwMEJx9adETnQLmBAuzwzSMHwFgMI9zMjPTtVnAx6cSClK75n5opeR_vX8eeH9oTcxygq8YVu6ngP16FnH0Dl60LVfxWnyB8dwm5WoqYFCVOVNQKGzREsIYRm.izh7wmgu83PfXqwIfX.1sRJbUIXbch12A7VQMX0De8iK.Of6mY_LTJZLDW.BB8plg8Hz8O2YQm8yCjNW42C7Tzb.m9PxSjJuVxnaHP0mVLn07sWHJZlX5RsW6nZAv5uJhDzV8BlrCM3Kq86C_fUtEUYSMTkin4y3jiBBYP_NPnpJLbuQYQNX7Tk0fsqSi7GIFpg1QH6YyJ_oOgnccs__vIhwAZI3GwQvcfdG7asgw.nDu_9HWUwpOYfwxZsC67dhTa01rxOwevMv4rIzpFdYmLTEu.n5u4s6MMpe9x0eWIFpOmReg1rvE.YoFO41ErqfmjGrU7XXkLQZTtz8sgIkztbeMrEsMkNvg7dP01svmhexCErgHNLbIVD3ZvbcqgrfeJDKkhEj9u56CFYjry6UWq6rcUGA6MJsSuPpynilYYPrNoLj6r1tvSOmpHbwIIn_krt9tp_mqbAsBSTb_W5c2b9LcvMcQf0vAWqBwkJVJh0nj9iRGM4qeJPM78gy8BK1xvuasEN",mdrd: "Zof_B2_27RwsgPYEmkuj12X.gTGYYv7f_A3KC78gd5I-1739093310-1.2.1.1-wH4Ac1TblTqQuYmcYWybfu6QBwiUfnZ2VXDns9WrMhe2QD5C.lcpo93FSvHAdpPYh.jkpjUmfa5sBmRPNw6VyG.O8PALiqJUQRiOwBy128dhqlMNJTGu2dLCy9tM2FvV2HUrLIU0Fff2WDErhnRcwtL2XaiqZe2e6KeonRXXNnERL1ZjRLtqbm8JVmyDX3HEvuaHQTYMWMQ__X1CC1Jke7I0wlYu7vdPaIjlBwYLmQ46O7r1EaVGDe0UVwRFFz24hlpSWt16FNfSb_bPLc0A56TVjsCoY8aNh.8EeMsw0d26TSjsR1THmgFgppF7WGBQ8GayaqjpHPLymlVsfrhD1R0Wus_BDQjDjvd9klJtr1Mel2ljLf00qk.jOb62frIY8ObZYvjclfEvEQAh..QDpE_yJs.QyslcKq.gFfy67nrzlUDi.VL1JwTAoT7zKibopZeIqvFE.v3383ShReQKwG_F04tRDtaWQ3mar3nSZeKiC1R6vJ5xdcvDSSf1a1t_.wwX1rHAm8KfmNlyNjyAOqOQfD23FzJP_aq073iw.NAQL7XpAeWa57PX8sw_LhyPq_N.2DxR7Wg2o3DigoKZp1zdWxFF15vctuPNaGyODtsjDGOY8RY6vlGro90eeCAlq57qLR2hUM5nvpWj2lFP6SnlBfxKXpQAXG0BXpDcJ1Hp8oAOrgacvV.BbNkybTejyllBF.30JV9Dvxlc_ZNIZEov7UWbteRP1BXBkGKfAjD4ORpTLLZrhN2dEiF5qnjHA5KEiANteFu79aI67p4pCRaC0zojAG1caTD31P84yQLRatJD2.Aj4fvwhPzEf5PGH6faPokt8W4v87NZTnG5WDp67YPbIiu4qmR7ihTSeG8I3o_xg7ZQ2SsH8aId4cuW9gSzHP2LcZYQ.nOf5YPZh3J2jntNzi.qm.kJu7mHwL8UdaJGTflBaNTF6YEx__6KGO.3c9.u57sPyzX2HmYDZh4Ct2AhIQtnwwZ5bahCbgXOmoFlfEYutcMaVUl2txOXAW7dR_pTp7zgb1nQQmu19k7hXxB9taKykbWq_.jb2gAAcLFuMdGGIFTkJmKagZHwFFlDOkYw7K5pCWgCnMC1Sw9ZzymgkmH_CrDuEjMcSuX6RpTvEA49k7YB0Ocva1Ppzdxt1Yp6kKW_54c..u2gJ46lfZEjurSdvZ3I4zm7e23lJNSGCTscB7.fMiIese8zdvXtPmNDX3vGBIPVInaNb7Uow80sVrClPHBkBA_6Ri7B3IfomEKThItufAVHxBdzwT.bRS.4dkmfF3l31fxHTBvKtJyjyzZsJTUcs.33ToniWBqmUJ1s_AB3aatMrlNzM9pSCw54uAqGx88xhBem3MAApDoyt0gFIbhfQNCVhqdvC1SaGsKhmygdYJVOnJtDEvI70cfGKkhAHm1F33Gg6ynuxfQVkiYg6414wD2k97GADKdBvn_.NUyozFPHOJj2vncfz.DJIe0LLXmVcTblxlXSkLm.sT2RaRZBk3j3gwqhWafmA74dPsJO0gJf4yGw.6.tiqJTH9V8i3bQJHQdhfER2uq_ApODsRM747cLqYLBjgHg4_OKxuI8wOWz7JI.HyY9ovH8542GYNGKEojrjzT0pzM2xsNjN4fioSs6yRrGKO_VLTFl86XOJxoQY5XEXeyUbzp.rP0njPglx1LdYZoZlSfK7SO.neLW7Z83HnxtVKsw3w6HlTMPgNctiM6Raj7fEvBcywRQ2cD.pU328GCqHM3YN1GIke6bd8DtnlrNOmi6tNxbRDrgmmltHi9KEfPu8sa8xmklcmryNVPTVxZeHCpCQKXxtSTuC_nHNm8"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f2d467b853c93f';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\/2840139567?__cf_chl_rt_tk=zv1fBxNGYF_2zHoo5dv0F.1ot1fbhzJGkbL99B3on_w-1739093310-1.0.1.1-qo46siZ0eS395AbpLWFJN2rDWa_Uw9tSD.GMkgPZ24s" + 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