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-afft18x0j.mit-edu.top/post/1453286907

  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-afft18x0j.mit-edu.top",cType: 'managed',cRay: '90f2df412a55c5c7',cH: '02ONi0TRBVqUfWFto2helRk2IiJLsIm840ns8M0GNmg-1739093755-1.2.1.1-syH1zQXwZUUsmzAmk95X2xexjWlglASp1iQevBbtvTHGu6smLc.osQp7HPC7f98u',cUPMDTk: "\/post\/1453286907?__cf_chl_tk=tGmGUAjkSpiFSDXjcJ7zpj3z2lxCvJbl87Q21Tq.OGE-1739093755-1.0.1.1-Kond6btKYOv8ZrqqFFDxxRKzdyraOVjY6f7IhD1H76U",cFPWv: 'g',cITimeS: '1739093755',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1453286907?__cf_chl_f_tk=tGmGUAjkSpiFSDXjcJ7zpj3z2lxCvJbl87Q21Tq.OGE-1739093755-1.0.1.1-Kond6btKYOv8ZrqqFFDxxRKzdyraOVjY6f7IhD1H76U",md: "3qaxkWxMp6m8PPnqKHWIAYRlxZHwQA94Zoa3Hw5.7CY-1739093755-1.2.1.1-myKatXFk1BQ9FgD0iMhhD9QI4XWFAXA2UQHy0opIsfqNNnhiwucA_ildPHYqADmpWXqv7RtI1X_rlp9EA38KY4j1bxiW0VFapZqbJhM0FB3NGRSaxBRpCziN4nO_m3E7.NhjUl_J6fU7osVkpal9RJxaPBFZDokx_wGIn7A3m8FOxL_ooONpsdV94g5YZt_gSNN7weUVNqoNfda56Y9BbvdMA9eDgliiJ4rlN2NknGGUK1MMxX0DLg3cGDIHFEgO85ZyLj37yaHIOp_7fxiap3odTPEai6tlWGu.L7e9aQ15_dX49HFdMrNXuJSoHa2gyHZq3v8BqsZulT9w3pppyfP6WYwDlsEN0K6BrcwCE69ovV_Y4v7i4fWXwXjeEaZ9.sTVaxxxmACVwDLOuMK1yzkSmWkZL1xq8gy1cg580lgrg1HApVdqkDMPasx2GvUBynTuICj19jhjwUgTWKaLsrlH2HFnro7GQVxT27svTx_U65sFOD9IWKXTqqudT6jxHIfb3JxVz3cx03sX1R3nAjnsrHhc1F9MIx9jwV06WmhueEGN8fxk4hboG7TcYE.dwIo_ND1MfubsgJZ9pL5U8TNrvcaXRu7UTF9Nk5u4YBJ1dtMiuAhmYyzidNcWzFp80jw._l7ynjSmfyT6HoTLomKRFl6iuBH7ECWalKm5C8suEgGsmQXCjLJIzue4f7zf8Kq7TLgbcJj0WRVCwUcEFVtWd6yBqXE_jKInVYw_hcFfk5DcVSecdB83W6G6Ga.pG4nj0H1v_Yowq34xwKiknq7k1r5t18hQCUdRy5zv4kvyodvX86383LI0ow9IDpqqgTHmcY.hrsjmh5RHw26XYtuE3JmQVr8_lzz5t876JrrQ6J1_ev1BaiVUrjQrJ0uZAh_XDqa98YxUTVopn7M4vXg0ib.A591jbQs88iX2V6JTil6p2nKYFj5H.K68.4s0SzMar0z6AOPZpjj2EaKEZQGNxCzbgt74_JLxXFUFPwxuJujyd2qBeLmA4fDA6RkLwwlqTlOw.JkWCo.UP8rLRsR_kQ.UzOMnjTMDG.O6znR5qQvDiTWEWOcZO39NIcq9eKJQsq52LWvcuYXS_MM7LnOHomZ8G7NyLa1sYuUG8xX3NAq_0_xULqjR4VTbWQ4y5q5xBh9uZwu8MQ22IF6iniVL7C4aEvHWjFbX5BF1KpCkyWQSNba12QWReUkPtipobQMr7SrLWKvtukAps_I8bcZ9te28nz3Yj2KXclQiq9rZFg7KisfjWSkjwU5ApXh2JQG7t998t8oSi2l5ZiNnP6UckFhxDGNAjFZGNswLWNm3h.cY_fXJY4pfJ2bZ.AwC7XscIaGK9Y591wuop9tr1BtCBTjLq0Se8hwq9Pmio2E8RvtGfRKTtBtRFhHqCqDhtsKmRVe9lmPU1qR1eRfgsGNFAdryqbB6MGpUYVSxqSMxeIJgKxZ2cLcVsk70Ymk5A.XYLuow6gdTYVgv.7AxihYdJCNbZGVm34CGAm.rJWoNDIpdnfOzl.htb7GY59ZB.6o4znjyClM48hRH8yIIXL91leqJc78TFycKSMUownK4L_IZnQ59vexjfiHkzYw9YPY67EAGD.34SHvlXrLknHEmdBXTjMkU6sfV.Qk4Cv_Q6cAZ.ZYMsezK9dI1uizRQPVtQD2Ho9wyGHYnslBeJOFlf1v1frkbf_DUzp2a8UudqvGqazm8lSq0hrc.aBr5xBwHdiNVPI5juw6hytZmzn5sT.OzBHM99dU.LVi8JxKBBHfT5pWx1IFvRRPlwp5E7KYKrbL9UlFYhfM.xmj7gZbrfAJAEsuCr7XUWJdlr4iOPbo7fCLiTkwF2eQ0BT4Ggt8j0XKvP3PHXGRX102SR3ZGKy242Fw.eYoHz62QQf.leg1hQj4D9VypCq3CEWcO0vUPKnY1MJNpeB6Cy37s5BLRIQFFzWqf7fwqLRw93CpPIDtPTAIDXkFaAM3RWFLwd0ZtYF7vyJaGDhDl5g1DTzorXu6JIpJdWM9dU4dyMQDyuCGfCTtkS77a7sIWGOAUno4bPeMzUlFpL3CBQfbYZc6sQBS4oPmxxXJN2Ss7WTCX9p.g5XRTpSM5KGsU3OGwwRFPbU82VXKw2we26fkJnzViu8Vp9a78FN_1rxiy5EeYsjUpTYBR2szswA75uFNvINumSCulpNmJJLpMo2cnrGVio.CuihjPozYrAqunL5KQRq9H_LtZHz_qkHFDREzF",mdrd: "kRiqQh4TP5h5AN4mhkBsjfqDs3GS6HisJG2TGf94VHE-1739093755-1.2.1.1-Y84lVwg2.DWsO5iENZXijFrgE6LZxDpo947Kz5n_xhdY8gla7GPqQIhf6T7v1lYOl5_YUFV1G6nPClC4JF4VRA_vvvDvI0vlAsiu1NryWh0xh.W7U5u3QgV454AHg5y.4Z0vM85KdTExDEeLSTguIYvChCaE9gfua5zjMaTrMvTTyO.0noYxNRaKXp7w9QselAAPYGVwj2jObdlrUiYhraZXzxrauEXdtiurCEfRY.8l8EX1B7Xlyae6de02T134I0I7V3oJqHF0jDc2JOKJGHLaVOgJhqMmOHZl6p13Rcphs1yUtQJojBsSOpIZ6bhPuMlaBXNezqZ7qDT542iM6zWORCELqVwnu3vsZ3Dzqp0wMHb5L1a1RIcQdMktsH0m.A68rphJZLWWUQ84STKLWWvl7WNCXCKVOLIJV6kKQCxj50VOwIDT4NCS0JI9NQjfDkTdvNTsV2IAVhzy6FmBWwEqqxbSWELVfqrpXaFhvD5UvyN_SlYoTG6heS0gDygx8_4b5CTN1LbCKbuHmzNzj7UqShHQH6qhDhmZ2lUde7yL8ZUQHiweoR7iM1.2bwwWomKv5hnVg8oCkB_Ll2XdKAGoVFjjNLhvJaGk5cvFhEvI90hA6o5EejasrJPgb6m1LlsD_yS9n4oIbD7g747i_Dv2tGx9esHmfdv5QMjPa_wLVuijJh9y4gD.CjnacArnM9A6F.HvPsMmtBhjhZd.3zIEPyOZdzYgUzeLxEJn2liHzT7pfTtB4lzaFB6uhP6bGMEz79BKhnjiCptE88u0xbHPjKxxlqeDqVb0sK_caQiuAQP.ukW1dd9z6y7hUShagAgMFetH5wxNO3kNAN72koUEzPFxF81W7a.WZ.onDnr7WxEdkYcKIOTJ7XB2cLY4tztrz2v_LWw1jPX8rMdE0xED47QqKats5l2evsF4UYJDbPK.Nx_KfcTsj3ks23yG5umMJ88Db8T3O2NjqstgfZMscVAtr8A._uhywr18q6wOeQnfcXZPpwX6jwum4uQQh06HnHZ3A_Gd_40kFL50u80iLaKgbj1yvcET6D.jrOe9ypr0ssa2zf7OZCWx7I.zPwo89.UJsbGqcjov6tw0O.jxT3xvMYgC7oTIwu3oOdrSsjJRUmHHgS9YBB54SqWMwcSLBwB5o3QU4uVY81aqtSKu.pMQSW0JIIiCm1xk6i2DSRiudO0WJe4j5pTFNlX0HZuOHgexfdC0s9ErAOfD4rNKC9Y.fbY6K_QvZGEM_Ck01DkV_fUKvZ7oXkuNNxMOPb3b73kP6Sei4PHslEezccsam5JvoXhjD_3_g5o4Oao5j5iMrUyCOL8zgkzq30xiAoMVhi8jvUce5ir7QuG6zW03SNhLSoMzF.16emVFxYFULu_kVCjb.Mvg9gutAPG02ivR9Wrx7O9wJqgWumTj6doCnZzUFahMvIiM3_otBdy_daaCy9H4DnZuuYJgBEmDdjXPW.vGHfpBOFkSIO4zYZFn7tf19pIgjvg.rG1UOCNo81B1sBT6v5WtLnqAwDGJWwvqQo1_VMCo_812RClUJJVm9P4PqqeIsaiBxx6NuoYHGR.r.yppSNQs7FDJolZ_9NQOWogHWvdrYLLRKiE9eMZDzqIEZoCJfOzXPsiGoDtUK98nsEOKzVbERSNsUT5Q95d5uB2pjyyf.jz9hxtY8Y3cPcbNyZB7ah154Vj_q9Pdfpm20igbiPPk0A31LJ8dmkM8.SnYowkwxXgZLz_alEqrfPSkkPWBimoNNqlP9awNAxxFfyM9EvH2cDCo0.aPsnPjQ_rwD82CMn7saesEYf4ir.T9aKgNGw9_vHVF8XI"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f2df412a55c5c7';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\/1453286907?__cf_chl_rt_tk=tGmGUAjkSpiFSDXjcJ7zpj3z2lxCvJbl87Q21Tq.OGE-1739093755-1.0.1.1-Kond6btKYOv8ZrqqFFDxxRKzdyraOVjY6f7IhD1H76U" + 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