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-aff69wdmk.mit-edu.top/post/8436190257

  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-aff69wdmk.mit-edu.top",cType: 'managed',cRay: '910f719228329c24',cH: 'eDkndoInUrdncv216dkMqKWx4M_nt6znynUMgNUeJa4-1739393349-1.2.1.1-9ZF8lJozQl1iwESDFJuMizoDgwQ7twSZ4soysqurjxAVcNjpx8bDPZpQr4iutqRK',cUPMDTk: "\/post\/8436190257?__cf_chl_tk=4Aug0iktmqiMTtAXEMKbkC0xDWVW87PLgL5lOwlmgMU-1739393349-1.0.1.1-ATz6aYffzGsiTrI3a43ZXcnT49z8zPCcdHpb4sfKJGQ",cFPWv: 'b',cITimeS: '1739393349',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/8436190257?__cf_chl_f_tk=4Aug0iktmqiMTtAXEMKbkC0xDWVW87PLgL5lOwlmgMU-1739393349-1.0.1.1-ATz6aYffzGsiTrI3a43ZXcnT49z8zPCcdHpb4sfKJGQ",md: "hX5_h8qA7SK1IWpv86pXs.Vy6J93dzzQOSw_.BrJvJ4-1739393349-1.2.1.1-LAggQR3gKtPtbR7sVBgH2_65OqqsEwmhzgMKj1VSJAKimEG3pUs0I9H_EkC7PZ7cq.wSYwMWx_4hfSNZ9jMnsKSnSGpMItR2f8kU5hD2...TA0PUxYmpxdQ_RFH8rB261BE3vHVchjsLd41TcJgmr9GY6lF_hau4dw5MAa9KQiZQDl4vMYE8pxVTXx7yD.vUrESpg8ugeOZXhSRgbDqlp7GhGcsKdrFO0cMk.99fCmQ1qHoUrxaERdAUW2HY8bXR.IeNwfGsHizX6aIP.Pfbsb9twcS4uxRfwXawq8XOSIP6sFKsEF9CeHs9oKpUt.a1jEuFcmMnUcWLRXoHMylVfD4qzYqibnbPotnCWEFgRcG_p5EHXvzvat7qVIEmqvcP2nk9yK.yD.Tdb8vaMratR4nnMnaLgCc0vjjasyS6QfPytWZyLXcckUfKN1tEGb7ASyNO6ccKuO0EC3R4cZewby90a8BHt5FyIGzRlK.qV9ckI6ZkCFpAYqUTk2y4fuUcj5uOiXUBcibeT4J_rdpPh3CV26l8EjRlkns3cnEqTZt7p_BmR7Qpk91_mT3zDHvbbMPiEHdszXIlXQaOwBvrY5aq_nULMRCVYGqa6MXr5M2z7P5lyb6hnz1aMzIhy1dy10gAdLzVXAQc9xUI_B_dT6MAIFcwpnbbig5Otrs3W4kwCFP6amBGOEpX3aTcGQMWCCzrWFCQijom3VOJevHDuNb3Fi1N0.m_hfZGGkRMYbPhJJ5YIH3vf6A6pxNYVmzWVIGlFbPFE.g_RrKFDgR1jULx6.lJoRWWsQPNuZTOslF8ylttlTCD9IbD.C3x4UabnKi_iwzxlxuRvRBnYMjUP_WF_w.ITk4KUl2NSX0P49iY6pl_SMf8lwykNTs2DF2idFvMHuWlgSciMm5_C1sr4e_QbW6eNzlTKTs62Vc3Thq9VDUjqw3ZsaxW387EwLhCVtxLuptZh5MTVVMcDz9uCrZFJmPB7y8d43N3e4ZSQu.zjKR.mApMcptxv0NVPYTI0byKQUNthwhtTbRpB1DEvHI8a6mcLwutdjTf5SQruM3J47017oXv939x2nB0926MG7ZQpm8s1zc.p7aAEQp8wbXWU82qtiT9RX1Hb1ghZvrw_DEL4gsZ9fQYrFhWI.JOMVKtPRQC5Mbb.MoPWYtzmy3PVbupiuzadObjoMoWbUFYcBmbLDN3.rf9ke8o2sTwtO90ymnFh1Wr9tMVveKrcBwKOfaMe9S1BXRvwiqgPbLLnDQY6edpF_ZxFucqiDBXspEV_x0Fha9klVxJ.gNM25.WSDc4AZm7I4cqUWCQvCVHapInsFtC27Ez1IBVuDW3hNYRMZOAgIU8L1gdrh2RtpfSCm_9xwWtZN26qC5OnY2gPKst3uv5utr0k3u.tbf.x0Wq2Ak.jb1acw2J7kHY_Vub0xn57iVS.v4i4Al1bXnPQofzSGD5TfJTexINnEs68xYj3Eg.KWc_4Ced8OHrEbTdm0DTfmaiXwDECLaUm_CcWF4IuyU17q4Odny.GcEOUw75bZQtnnGLnOEL16LUzlvjk_okYp2n24v.0mfzmSp08J2BqHg3yAgfixjOyNOvyw4SUPEFtEEj.fBiuf04awUymwbt4aHwAj1.8r1bihRTByoyxcQR9xapF.ehGab5z7BllRb2IfP7NPDBxFyVdun7avoSUAqqD0jPG3oLLV02VBaRuKuMBC0M2PBWsUZKioogJEcIY.P_Q78XpoVguRLIMpw7yPYSCInqJ_DoIIm2kFU.9nC9fQsCbvdYHfUWY91BGe9zZr4tL2YvBDlRFPZFQjDbhZaZ9KfQqhHih4QfxkZUifNMBOtuP9OKptIJbBAVoOKVVSuqkjTNsnoEyCvFsWo9Zg.OmbpHibigdIP6HnwnuFRdTzdv4gehsmkVTMmzCeaSgdc9HoWoJJqjY8E4i2JX6eO2ZSxsC.S92aZ472azSFa.DXyMh.wf6fOtH4YD2DINyAabEdVy3W4wi38BHfv2wvQWwPyh.W4RPMpuG5WtsA9YUNBjMo8.9hw.YEzTmlEzRXTUKJX5u8WCF2ZKPL1Db2aqJcco0jcoX2y0FWpeDWqmWPbaaQ8BdTWKJH29_p7TjejTLPd28fsdGDWoe09s6guskSYThLpGyEp4CIqYuPg_Y7poCq.D.xFBfi65R.XKMTALE_cOcxHQmhNen.JIc7sNPSx86K4FKJuJbx4kgBMpbyfYGa5nRNjZ",mdrd: "Qe1yQgUM5OgIPlmLS6KR1eoMQl.XPeEuSijAyXNKlBw-1739393349-1.2.1.1-ju9xGoqx9.TrLKWjN46hPzUmN2DX_CR_1FS3MPXtEgAVChmklhw7g1NLpVva0sF.ftkt8afz_sqzjWTLa_UDFHSY5Ao4UM5T5YJLdoJyX71XzrSx2lCKmpuXef_Gzng85X9T4Nsbs7_SXUWGeSHMQi3pk0SvIqUML0m7qdEatwya7UVReGsX8WEJBdBSb2PTkggKRHsuluLvPXOuaDyn1aXtuVe95HMyadi4ZhBo2wt_IO5wBtmPauxnQqOvfwMqc_m7v47_ab1rBmL9NmlGM0pI7Xf.0_n5K9AidtZB6B00dJgTvNvrj34xw3IlYirKg7POl3z8JuFOKfTBE6a8ZStA_Pcx0EC8LwJHLG_t1yhOiw7PABvQ9Uofps3tz84AijWn4fCmSap7EN30QuDu5iUqOjQzEO7p1WXyQ5Nuf2UdnwUnpWTrz3DhZV2rEJepnkOHpVENac85qc8NsQxjhlg3sBcPbTfjqdJrnSut1vhz1_xl4ROEVuKUGJ7k16h300wqLbovmA9CjYK8326GyxnmEyMzirQYqTFejr3BA5gv1ZwqetTRJTPenVY3znrtjDCITpHLmo_P3yyQ7V5YWUbFDNFoW3em4OqGIPxnjYRj4vlTKftdy4vaNDLljJtu2VNtuGSAZH8zgUJlJHDyt8h5Q3BfrTpr2Lrp7lGaMsSZw0NZMT5UXvv2BhaYlypmx7v9.2E.eA0LXZDRcRzL_ELMxvIDTt9sNEH_NcmfN47tgjpAjwnFd42XQ0d3rkc.1y9odD0GGcJAexHPMpQFeP8tgVe15s2.Q5qUDurTkj5Rc6qEkyUAx_Nc2lx46QPe4toZPdym5HsiFnCjdtRq5VvP8Wq4ETh0OtSc1RtNnhuS_3ZZO9lfaQuXx6m1R9_a1O5Tvq19CAJ50P6c8Z0Nrb0IrrqlQA35Y5EW_0bAPOO10Domr8Ad0J1rqxL4WvjwyhvJPQYhhhM0ukNPWV4exWmMOhgjMLp.yIqCgdaDE41IIq2l3Ybv9EwH8JgWSi3Lb1U1VZnIgyPyAOhBdD881kg0FLGa69fd4VEJaSXjO_VH6mXvsdt16V0wma524O_Gda3Hh.zdjlnHNbYrjSPPu24hnPlz8dOI8hve2YsrPMvhRsjvVaqYppG.rxRdr0L6qVGiKZbnfRVtVv8YMV2Dd29Lo8Uf8PGxee5NHsHOOJUUpy.sCyt0hYp0fpP8LSXZ9FvlqoOEqhztK6aeNae8ivS9AjwR3YWEKeLbI0BCJOJ.LGs5bQSoh0UvyeYoquS5rEIEc20nm5Fqk0Kta05mGcmhsCcgmfYW9m5HzMlomTl13prK8DGDneRqNjDnsxG2hAsagyUmctgta4FBD2bdj2nT4qvpd.6SVyIEXXVHWHlcWtqBDdt4Z0yY7wZVHDwf65jC_Bx0pAN6Q1QlkMAX9jKVEcqTYzcMZPTTSDBNCeXAWX4CKxM_ZfJxipd1i1hgxamX.Gg_Pi_BIyqb9oaSetmqM4Ee4QQFhPAPg4y2FZ40F5PTB8pCS4ynKm8dwEtUjcJ9nKFObPzFw_JqPPWz2FqKgcWyR9ELX2bHOlSaw8lSPIROxS3a4KQPUNV5dekBDOTheRH6hiBI976ZFqtbgutM3OUxyfciu24xDBZmbnwvxZkZbfCVHqZkoeCVrfDCSsO6HxsVLNgPcLRrmqwCWqU6pGAuyg42klL.l_Dv8JTOx.sL6eFYED7ZaeNvn9JpKJXvBieiz3GX9bMab54m8zs0UbVOphK3viUXWJPDJ8ONfHf33vSRHKu.Xy0fL6tHrjxdt_CxEsEbBs3Bx7k5hg"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=910f719228329c24';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\/8436190257?__cf_chl_rt_tk=4Aug0iktmqiMTtAXEMKbkC0xDWVW87PLgL5lOwlmgMU-1739393349-1.0.1.1-ATz6aYffzGsiTrI3a43ZXcnT49z8zPCcdHpb4sfKJGQ" + 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