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-031382361455.mit-edu.top/post/1287645309

  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,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMiIgaGVpZ2h0PSIzMiIgZmlsbD0ibm9uZSI+PHBhdGggZmlsbD0iI0IyMEYwMyIgZD0iTTE2IDNhMTMgMTMgMCAxIDAgMTMgMTNBMTMuMDE1IDEzLjAxNSAwIDAgMCAxNiAzbTAgMjRhMTEgMTEgMCAxIDEgMTEtMTEgMTEuMDEgMTEuMDEgMCAwIDEtMTEgMTEiLz48cGF0aCBmaWxsPSIjQjIwRjAzIiBkPSJNMTcuMDM4IDE4LjYxNUgxNC44N0wxNC41NjMgOS41aDIuNzgzem0tMS4wODQgMS40MjdxLjY2IDAgMS4wNTcuMzg4LjQwNy4zODkuNDA3Ljk5NCAwIC41OTYtLjQwNy45ODQtLjM5Ny4zOS0xLjA1Ny4zODktLjY1IDAtMS4wNTYtLjM4OS0uMzk4LS4zODktLjM5OC0uOTg0IDAtLjU5Ny4zOTgtLjk4NS40MDYtLjM5NyAxLjA1Ni0uMzk3Ii8+PC9zdmc+);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-031382361455.mit-edu.top",cType: 'managed',cRay: '9110c904dd681ff8',cH: '6ReciRhQTz_jCW_Hb881HZtS6Gh1ZGRLPh4AlRcmUxo-1739407417-1.2.1.1-1SwFKQ1C3wPmAmFdp4RV94NDVyRkxpQfCNZw3IfpVA_mcdysCoyjaCAaUqI.iJUz',cUPMDTk: "\/post\/1287645309?__cf_chl_tk=8_XIZ89EUP9imX3.pA9jnt3mEkYzzsOQ1hLdO5_Se9U-1739407417-1.0.1.1-hi_OXJPJB85PspyXLqWeKqIJiFhN7kTJCYngqeR7Ckc",cFPWv: 'b',cITimeS: '1739407417',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1287645309?__cf_chl_f_tk=8_XIZ89EUP9imX3.pA9jnt3mEkYzzsOQ1hLdO5_Se9U-1739407417-1.0.1.1-hi_OXJPJB85PspyXLqWeKqIJiFhN7kTJCYngqeR7Ckc",md: "jBsi3bYXTCKX3APRtIfyBNfkSAQ_VTqNiTe0JrdbX88-1739407417-1.2.1.1-QHtOtvrAmG11Nfteh6S34WYD6L.yk4SdOjm2_Cp2ejBCBvzeo2.SpL686FyADCwLHHTCPHxJtdFe4hJdrfyM7M_G26jcBgv8p8el38uiF7XEasFpLNMWS53smOfq6UmGwGeffKkjdTNfQgwMcBwuYnnFhw20lEvzWsvW1uOJ2.d5pKeff_dIVti83yciNTTxpWs7Me1HCNNWFdwufo7TZ1N0BEezpN32e86C_dJFmovfnLmHhc2lT7VfBZkGVrUHzBO5FqG.dTML.TFcH7C975IZUauiAHJRSuslBTuVLhgYqxIKTUDc2d4ZjSXXOxh5co5wwCmDRhvaho4eOOqAM6JVfP7XpRTPwJ5A8KByswFktCPSE0Ji8uHZpQHkPZzV41TGv6Y0CtOp2BvRiCayQsXKIDWWDzfHvy1ERQzjt3lH0zaun7rUqB87hIOndeNXq.z8AS3gN54x.GB25C0LOUjkk1hFhWCDAu6LiqRMjRtSjJrYNkFamiG7VOoSg7vlat0JRyw4v93XkUeavo_4dHrZvMAE2iQIQtzIxkjMit3b4NOKQrBf7uDVxUNF3WugHbAxkoNesiD1HXBOY_2EosYE2pzSlPdyBTs2m8TzE.wQlWs6DwlRzxHABYqJIFdt7sdant9cRWESN.V6GRHJ_iIylpetgxDOhauVhf6v5DOso0T9gVQaBrGLBNgRW.9DovESwvuYI5nJZqktK1nsGwB5_yYVOG2yRAdbdYCLozPtbUnXj.gNp1fdA19dGwakdSL50gLUs9i3V_35siSSFIKZM63IAXOAKbTXkrwXA2VEn9sTVQ.oWbWZ2YsJ2dF_Z6Q8JwjUXv07fu3FM9TsSHxapwiZoZFVRmywODeZsKZE6q2j07_7nA5Horol7bW2f7xcItnqzpe9ObhnU4rUp7CTCrySDG1Yuxoj1WCkftTQ1I7voVi6aE4VKPI9ok9gUZhpHzrkZeMqDFkyY318h9WtdXcxIDdHeGlnPy6P_88KzDTdhXmVib8wRk56G6lAHZur8hRhu2cIeM7O9vwrPoQJvxEp6gWOtxp8mUz_AK.KhCfD8v0CHWlj5NilP06Z.Ek2eg2jm_YBREVx6Dbbm3ardN0Z2qkfYMHDCCOUeSRMKkrF6kW7Je22d27nY0sbnvPREl95ylFyAOJ.m7wATaZ0cmPTfUBxkBiPG0zXg14qY_7hxt5HMTkXMlk5wMcH9crKC3tM6DqC2Z6iQ2Xel5TY3PDqeQKpeyLgJEHkEn4DIo43ngzmC7pmkNNRgl.MAu3TLSn2CMW7bTDnNuddkMlPIVNRsvV6fLcClc.xV4JhrSSTMfJ9UPo87vy0PeclWyfdYZ8sNbcUCbqlcSJfAoIJBpJUCrFZyDGi6lKkCFrJwzz_ZjK7uB3I0conLbIP7wXfBL5MO3.FNXJ_LJ5jbcqiiOuFH14xXY7bU1Y4NldBatYiOrVniqIxZwmxgGPiU2HdxH53sPW3KcKAKMw01nK3NZU.MZ10_HF_E.WLIIcmX08RB.nxkrnGfV1y82m2ZtL3hHreWHKVzpm3hUP1L2zfMv5eal0IGd2i3QNTCPTXHxP86lO3sp7fF3nv_FThbTafrj54tWCwrMz2kRdVhWIL8AdSdnsvdzEve2YIctJRQwXBWqNrdZbnwwcSpWdKWjnIx36RNxgnMT6i60qGxG8mybDTKfYMVWC0Efw.xpRlzIzw86YHFVRfqPSNJgku74crFFWR0U_9lnOYWpsl2tuB_olge9ZcZCJb5.SppIpe_mJskA8kM1NGMDiE9HkqcXHxgwypAG5LS4EGfM6N6jNU9Yl..d440ujNM.rXlCu8tQgwzZqR4xX.jB49dmJa2BF_WgqRPlkq97Z1MrbzvY7_fdziATPlJ6g_f.FZwZ36jZJjbeUgNQknJbAdt_bDUXeS_JJfZRK48K7pm._sPx.YqURFhbcsAq5yOaSFNtAZd1slNfpxNkk60ieUSqWiJ20YEc3yzmZvQ0FUDS3o9GGQ.fuLn.f56wpt4MyQTZQzmGIPM3fzXcBhFq8tA8tAJNFQI4r1kCgwf_buhlQ51P1peH62H87TTXGja.ZXUZNv8584YEc6wjlLsVUsSavRlNj7cXFdlWDSHp94eR24SLlBnXm9w29JmuWwGUwBwqfAM1h6XVOpwikggBheOQ4ceZHn7eFrfBxJVjNnpqmv2.zsQEhHxe.TwG_.5thuJLHeBpUmKSmhjkm..0cH5Nl1",mdrd: "V7lV.ftDIOKRYY0v7_EXKtCDDvsFQgs6YR.FAATENEY-1739407417-1.2.1.1-Pv40UXV90YlYKgVIusezrUkZUuuqs_HS.MXJLmh4w6ZGVw4xWZIVYYNdr_R80pCQdvS5KX.gm0nkB5kB33aI3Cj0wlUYQRkKKgzeQrk8u7FMM8zHhVLGS0F_0k3vXerE0tZc8rv3NUWTm7knb1ZxNKzTRBX18dW8mJKYJrwS_6yc4GkRyF7sLOz2qdR.baB9d9URJR2IDdy82dF2M2wPjFkTQXm.E1e0ntpe1QG0Af6VvQ0v2x9tXJD1YnfPpO3n8kgXYvdlI2VcCmeB.aHPbS2ixrPx4UkSjiWTadx9zBCEYBFcPQi4l5AL7zCIJgZVjGMIcmKkxP48Is9TCJifWZp7wT5spM5Gpy5QBexjUwdXN94CUiDHQh6I9x2kZHWGEXVrZ5rkyjx6WS_8kU.ZXX8_TpZ0reqL0tV_OoVsipA8p3WXP9f8gzQ2JP43LteHu_h_PJHK_k1NY.DZgbTgFamP.LpFkjV5JPYLwqhL354BnFLnPoZ0qmfL68uQhL1S361el2v0y6Z5DedoTZpdoHJeq0v3YhFiL.dsBYRQAqsdK_Du976KPmqsUV5K_R70LbpOdvka8yDG.wFhG9lZ_TMoeezpbgQubgrDxQdck82C91CS13yW4uZX_zFIXYg5_K1kRcmPgfdHvoFUqjpeFi8gmeNrkS6qIooTvTZLlpyRlOwTHaKrMPd8n3jmu27yoM0jAtJpk2QWMIA9TiccE7jtS8Ehnr7l0SYNK_jB0Pvd4VX7lLwmF3_rxAl8f3eKPL8WHkGBnaq5GV6NqXxe1X_DpcoGDY1S4O1cwyuDaT7jtI2o.W1d8fr8kgmJBbm6SFANQpUSL.3axs9PSvLhKzSaRJzvW1fK1j9T4oxzKt1fHdHdKf1SLPzjJSlAWi8B_fa7rOTkt8lPuOwXAO6xVTwSaKdTJIOmqfRwxrJy4Ql25b.UhPyr35Dh.cSUV8yvASskk3xoFiukjH07NuN0ZjSd8n1rGKzIs2IP4Xvkz_mF3pH_6tr4ekgQIwEphQPpSIUU9kCS4wzn1jFfne8ldY2Mm.q6OG4bizs0kq5pw1BXLbHmM3WxwplwZ24HcWpKKSuEXu3n_Td4Bq5UyyblyriR9nLVoyvff63agrOfv0Igc0Ptb4P6sw0.xZ8z0i2qyf_X_r5e06ju2mGQBFXZYsrinn89yEvJZDfM.cIwQcMwH76JESpJHPsIdDAQ7XbyYTJvOo6OLtaYOR0RmjlybQBT4suEfAt8by6WRoQfnSc901LDk2c06pm_V01AG59Rj4P3y.MwkASTh.dKlc2jTTqSrwsLFR.MTgbHWg3TNl8mLdnhpKOVFAj973CLm0InNhYkRajOTVFz4Wv7J5HxrXsy6wre5YppaYHRqqfZUXBopqd3G_leZPaGDZzISi432Ecx8o6zaFc4ebxR1sa0Bc5q_.Oz93B1DJN9FLFMemwEE6.H5xyIkNglgFI4XiEsimgZa_2hZMRXZxdOlwseHl.hbrgW0syWMgsoAH67ropZisiGKo5OIwFe9TrFm19qR0VWpGaj6eZgE5f_9v_QCTrdYm_9raNHJ0SZcmbMGuyuzL9K0M_hTBirM3qPxZ_0MjDEs0yOgaBGXxt0U_QGuo_Vgl1ZRUIS7DqO_7OdgEdwB10tSFCcK63FKqWimPsZiCHhXEMJm64y65i8Oei_yqQdiQ5t07w84F_Vk4CB0fq0s6iMRf695ZS8lNTuAm45cIYinwhwOKL4jgNIGt0CLGeAXsOlUP4rMYVC8__gw3seZDubbkYTFKSnR_LKOxkiDAJejlHBlJM9aGYvLbBA2s_D605g_lPmBkvHBLXyKNo"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9110c904dd681ff8';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\/1287645309?__cf_chl_rt_tk=8_XIZ89EUP9imX3.pA9jnt3mEkYzzsOQ1hLdO5_Se9U-1739407417-1.0.1.1-hi_OXJPJB85PspyXLqWeKqIJiFhN7kTJCYngqeR7Ckc" + 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