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-755258709861.mit-edu.top/post/0348971652

  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="360"></head><body><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-755258709861.mit-edu.top",cType: 'managed',cRay: '95b978cf99e6fc57',cH: 'MfrRualPu76aU5lFAKdU0nrGrz_GH_n3sbhfXpAnAUw-1751913643-1.2.1.1-RlgRlwKHZUHFTPzGYqwdOvBogSKr18Dfvrsdd_aoYU2UDbskWm81HdBqcI90tQni',cUPMDTk: "\/post\/0348971652?__cf_chl_tk=nQpE_F6ylFJl5Yhv22pc5uI1OzG7ypRFrUCLP3yawZk-1751913643-1.0.1.1-Ei.xcyisk0cpzPt7f9paAZ7vut39XeeThqIXxNRYcMI",cFPWv: 'b',cITimeS: '1751913643',cTplC: 0,cTplV: 5,cTplB: 'cf',fa: "\/post\/0348971652?__cf_chl_f_tk=nQpE_F6ylFJl5Yhv22pc5uI1OzG7ypRFrUCLP3yawZk-1751913643-1.0.1.1-Ei.xcyisk0cpzPt7f9paAZ7vut39XeeThqIXxNRYcMI",md: "9mvB6pih1WGMzHBCfz536hOLPlYGTr5ilzNfFqf0r7Q-1751913643-1.2.1.1-ENy8m3foxh2hoGNhDKaxvouUUHxNXDLlLrwBKjGXM5WUTBfKNgfFPv_.AdbknKZiRCjswJjUDm8_G8aXYc2YMlCpkJz183NxLsQIP20lZ4AHyv21SJX6oHQsv20ivyJ5oUoRKeBG6F_3Irzd6gzbZ1Ij8VCsRzvlVp9rXVIl49lIzIEWY9j1ZXC13REm5i2wwWj3le5uh0wTRUm66k9wdVPIVmDJduvsYADKmEO4_KXOwaLCic2qadYtcuWU_x9GWvji9SMTUIse5Qqz20p77fIJiDzhRryGhqvUyeOhMS5P6ZmbkHiFGyCWIBfyuid.duqI6eRtK_WW0Xmmgz3hCrLOwNUsaJImAAkD5WnBkL0xDxjd_1NQiPi8YN6zwcZRbCJf5MhRMNZXHoDmW40AnDOrOBdpsp6LVHwT8FluyVUpMjkNusR6kMLdm5nNnzcdbTHuH2cXIAd_bDgYa4QDHizWoNFp1.cvT8UudDHxJ1218ZTc0Hrjj6CS_y6CxoAv4icTaEe0bowJJ0Ic163U6cytezB14P2XVnJhdPkHNNE4VTbw6k3wBDwWbZNZ0BNPQ8W6TE1YdflZSB7wpy6IX253RGYYFEKfmKKOESeqVRCEkCN6GAOoSg6H6jTL_ri3nwL3k7PmDB4Y40lEyThhhYKoKpxC8e1gU4rlImBhAWhLNpJy.ySFnbTprqlbfqqOptKr2A6qC_om71hBaW5tD2Sij5dhrqlghEPgoQUgXc3MqtOTrJY5bnQqAM8RDV.On8MwTXO0DxAtwjdE9oLphf1SEqgaRUI2zlA57o7q.wDRSaYMFKphVdAIeS0EcQaw.pIEHO47M2n8CIbKObHPdQ",mdrd: "jiCMNchOz161KD8IQZb2bHbMlKUHseBq9BrjY9DoBEg-1751913643-1.2.1.1-jQkvY0P0qVaD6piIzRAE_asqxKeqTLVBHgF8DqjQ6MwH8QBmWJ7icsAyFn.5xKXMmfUOp5FnlrA9q0yM_2w_L2uDrzpY_TUCeon89yo8H2bt1UkoV.9xok_jyhi6exc.6Okzazhu5ZWoDSKQIvAha3vQQY7LeDb3P..VQdW_W1RePoEKVGsk3HTLS_Ei_TVcIu4o2bLPh.f_I_WK0GMJvKupvj1h8Pq8r0bgw6vivo2zFK7HnBpnZoggmDANl8ZzmJE7467kpMm__WyumUElv4OwXaqdgdWWOkgx3uad6Lr4k9RJJdNexdvM4Eq4U7UskI_Fuj.VcL_y_pRaLvtlVEDzfXJvYpXveTxpUuv73Tvbke_we_lj9IWnYPPV1ngQwq9cRUslzSS2a.hj6pGnlbEJdj94cgHBao5C.is3Q7OE2oFEULQHWoVT4GkRlqURfuCpM3UGsM04HFQ_CS2sChJ4Gg3i9AmGnR8oKfsNy89P08NHTRf1WtLiChnhI8Xn3_4Ug.ECAt2ghgdifYshTTDCN5lk0XPIGTPcUgRCHzLljPncxEpQFFKVfTqaAZOui64cJ5JI7..L5YzePBWol2bHntUa3KwrJOffGerfViuLUJ4MZcv_X2g4KHG84tOSsQm8AMJ_Kl89QylVpEdoKWOmQd6HCuVnMuF1yK0UxDWsZlTDdYHt8z4Gk.kj4kAWP.z82Bcw7G7NA9ef4_8fYPQvu5gI9jWodTL3Qa9sK61p6LvlrmIuVjejiP4NID57d4BWT1FtgRakuw4way8NFcDDr_1zO6z0FrIJ87RKGgZ_yT3BzAEUufnbOyztgh.ZXiQn9JsAYu33qfwewEqw8YCw2epQx2PH7ok1eKEpBhxP5U919r3QxtKkrM.g2ROAmd.kvUOkdfVCcwPpw59WcGWOOHUsg.uQkFYExvOXbMP8XcSt7Ax9V6iA7oWibmzXt89Nqoy5PIhoqSRXIpdiwJjHZ35U4XO08F1pa82ZDABT6bWv7R6Zii1T7JLP5jX6CpzB67Etq3dqsYafrZjbjkFBE9t1YPVb4C9n.JJwr39z5e131rTNN_wUojlJr6EjWu2mpdHJjm6BIQFd79dkCt.VOwQYybV5sWP5.TKYkyCNQWPhfP7_tfM0Q38JCeHc5bjfo1XbPvsggue5Ffx4QGa4WbZ8rBJaQxhPG2L0wErdYq7TzXVvYyZtsTQNsVQ9PmcNMKHZ7LJYniIJW7ubPYMKo08L1KHQpoDJcV4ratqQrBWn44njNBVJvKwGqIzS9wLidKyrcKW5LCO0Sk4cuya3UmJ8k1mP4g3HnYMfREndb9FfNCOH0kQQOo0CjoS8f3jc2R5qgJdF5FlaMISgc4cLgHjDY.zW3jwNcaiSfi4vtJbLggCXNxAkSuW_OBDOx.oTHqe8WW4qFdBxp0EC1NDzkZBR.Bv1YSTmkSwNAzzFugJ.x9iFZd.GRa7VWCHA7xBqsOQRbt1n4vhouQo1RJttdM7bGSPiHTcgQLkrQ_ShOlMPrVesz9KJ0BAX8XFuqr32Ir3WZVn9WeZ9JwhZ7M1JCI6ufzO04kYTXm.AqkB80JGdrFB2FZW8zfvvtn3NNTAUQCBSOkPW0rOl2NLg1eVBYVi0yXSUW9nct.WbiXKTZc1beRx.SczePQnHDBDzbBqWzhgLRmWMbK.YsHWvZLqPXWSSZgPjB0_ob.MhBeyFjvHhxAxEP9wxfImV1JrUvod5yYDL21YlG1w7vGoYa_RYhZBD2btA67c9SlaIP45GgnOnJbuJoGgID4S9Y4o7PWRpuxDeMM5NKK_xdusnb0obM2hew93sAZDBu7krKJWea1TZcI76Oj7Ahr2bN4SYQutGkFbpkn3tJhwRDZKcSPsLf9GfmAdi8IBLg4Jwins",};var a = document.createElement('script');a.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=95b978cf99e6fc57';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\/0348971652?__cf_chl_rt_tk=nQpE_F6ylFJl5Yhv22pc5uI1OzG7ypRFrUCLP3yawZk-1751913643-1.0.1.1-Ei.xcyisk0cpzPt7f9paAZ7vut39XeeThqIXxNRYcMI" + window._cf_chl_opt.cOgUHash);a.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(a);}());</script></body></html>
Copyright © 2002-9 Sam Ruby, Mark Pilgrim, Joseph Walton, and Phil Ringnalda