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-aff3uwh6s.mit-edu.top/post/0597461328

  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-aff3uwh6s.mit-edu.top",cType: 'managed',cRay: '949d6ed09e43396d',cH: 'jvTwv5XP_YV8_tfGTYRKiT5_7xfNTxptnPTQizRSjQU-1748935278-1.2.1.1-hyJ3F3jVCCRWgnYJPXpUMloFBLNcMIahxRJJ2Fxfiur00TeD1Fwz0HR7pJ_yxXIL',cUPMDTk: "\/post\/0597461328?__cf_chl_tk=DgA5OoOGBjRLGFc_al8dWHnLDBkV32vD0FsZnSwakk0-1748935278-1.0.1.1-uEK6rdQRjAR2.6EKbC3cBC3q_tL6gkDuSefZCfkwklM",cFPWv: 'g',cITimeS: '1748935278',cTplC: 0,cTplV: 5,cTplB: 'cf',fa: "\/post\/0597461328?__cf_chl_f_tk=DgA5OoOGBjRLGFc_al8dWHnLDBkV32vD0FsZnSwakk0-1748935278-1.0.1.1-uEK6rdQRjAR2.6EKbC3cBC3q_tL6gkDuSefZCfkwklM",md: "eIDQftlRys3pfMtovJ0iEGZfx8U1Fa.9HMcQJLI6tI8-1748935278-1.2.1.1-FSv2LG9FEarS5XSXLn55Vp4rEn6eitfx.IgSVCZ5E9Q5SKMLQMrc0ea5f54r5VV.iQTxah0ZEKYuRK2HNNfExCoruAAJ_7yIE615v6l1C_FmeYLnsqjwxhCviLDv9kXz65CMX.UdXdVwRmh8crRKsBwtamickp89fbY3Ozknx_sZSVYfHjAy0KutMf.E5dJSsmMBiAW2Y3Fy4CvJx1UtEmIFfVk6fpblLaPdW5XWQ9tSgtkB0HrJYHEtmu8Q6nb4G_y3fVQcqmEMiC9eQqbPIlFSbXae8LvUImSYEsODkHhTD8o2yDY21NeZzWrY40aggDxCWB4kSBoLJMrITylXLM2aX.kp6aVLX8HXZSTzN.DUq0B1EKyZD3pYsivp_3RczXb3r2b07t35KAX89jx20baxiK0d9z7VFT6tIBkrmjOAp3lpPj.6gAZORJ20gU8mvFxILHciWkc5s7G1JsgW0LUuaMhNI.u5vJ0P.mRug8nLMyKJFO_8CDk1VGEUl49Gn.0odfasp.l07Al6vOpgxpDUu0PYO1OlzIw3RXD.d9NHxLP2H_liYxGjBsmNV1Uh3OL8UZ9TE5jNnrTEeExnbUqbvjsCZTRDRZAUr.z3n1riGryaXikjo6cVeYFl7x79BUbsAkJ2v.v1frj1CqefEslBW4Yhc01cpn9JohR97DhRFnip1O.5qVJ4H2lxLuFmt1cYPZYhpV5K.XdW2aQNcpefBiV4BiHvUsexsu5fe5HRXmFpRAhcvTXRlX5FzdWikH2z5.y5t7fHSHjgO1IewMmqdm3d10bDbOq60rBp3Dh6zYlvemwXOzs8wVuljV8.",mdrd: "sU4dOFOOTE_ROkCLmzhtujrVHt_iWDA3BooXSs.jV6Q-1748935278-1.2.1.1-5lnr1qDy0f4YQPBju48PSIF6xTwocr47XriEcGhVW174ArKinrSp30CAUambVtNuwZZU0hfGOLNeD_JGKY2gDow_WVRpdSrIlgBNn3o2DbXl2Xriow1n50vFehzDqbLUGjXcuHMGFZ22UawXJijH_15AWlxG3c5LAMj_1F1vsyj3DCiaPBYn2hTSWuUFzMv1sCx_Cfz1t3Ea5OY932KVQTYadnrH38d0ceUEIuS3iqh94JEp4wJVfFIEV33tBSgnmCrlNSEvVcnt7ifSoGRh0pJLmPDmCZBQBZf.dv.ufWdRFXf0ZBYrVDnARQT4rHimiFn0L4Iyu3Klia5CfHmxUzchh0k4F6iA4WtmqGQ2nsJCRd5BKwobJJlTi.g2H1mbJ9mgEUmbbLQLyMmvPL8R6.HSQj85avu.iwKkq65rgOrdxyj8Qx2c6LNUjE9xfd2MGQlwcefRS.HkUBBX23BAukSoukEJB3TIRczOwQXw04AvJOZD7F_NJ59WjRRJ0BDhKLk_R00T58E1.lXf7Zs2UwnU7UHDu6LF0lWz6KSuTuI0cMmp8Bu10_a19GyoRPR95kKSmHU49lXr1wxOJ8k0hThuJvoWtkIW89bY_hCzJM5g2AgAaYMVbhbF7iuVQ0nApY.LA9_SQ8.uGrAG8beOaqQGC6wIn9M6_S.56W.q2hAc4n48KjCv9iWEALSxAWMYOerbU3GnwTvyjVCpRaBfyEgCJ2PTpdVkas4o4symlD0Y7neX3aUdqCj6izRQWBRGqcUa0nLqxZgBp18E4GIPPovnOGiVIaZFpNssnnhgzyFWQqzPiOte.DGQ6a1ouPTPkvyDbs_O9Y7SH83xBBZ8qJZ9K8unMUvG4BOhhbfqagxo6cU3CVlJtdqDhP0eN_0l8Mv5T3sYEMycUP.rt2JB_Mz18O_t91nRhUbffW8AsF8lTVm4953ZidlFBzQrGh3kSMe5F4_L9S9Wd5735MnC6zOnwxl3CG6hvCPGht6DPfjWy3Np7QYVjTKL_q9PAOBqrbWAd6.L1x1f1kMvnz_gYnokZiMCGn8k4xzid6Pm3EjLvwxcvucrtWnKJQAzV9O4skaJNKK7Dk3I2OvV6JALhRBYDs7kAauKcouxJEZVUllXXVHAhz2dwHP6ippWFAuO_lADllmrf56bS.vO4QmnrsxMU_Id6Jpu9nJashiAoSPkQ.QurLHIYYkdMolzuIyNJA0yYYcloKc21x3KIn62kywTuT.3Hr85WzaD.JOwRAR3GwF6ALgaHHCAAdL_lb1q7_G58XgStFFsZ.ryckjqhUg5U6TooKomdZ4f3urtNWJVv.tkxNbT1rCpzK.cCqF0FByvjf.A5KBpj0C6wpLEqC6EVeVgwUutdJN1XnAriJGeGtQVPvAitS5s_uLc80X.6wq.EUoljQa0vB3N1QkqONFj1_rhuEjPs2NXdwAQ1l0MiCdcdxx3XzJQMEjHv4E_WfWL4LhFMrUenKVJJ30PgOyoM3ZI19ZStwr8Ay718b7_vlvZ05Q990hKq3XdCq4lQswMBSQyu3mEwNJeloYFPVebJxoMbHT3F_2R3FdgJ.mowInzLlt_CYezvJLo4opdtkLHkuLgyYwApBULFeKcQO2EID6u82dZJ31jKLNKCt5GfyBzSWDQ09oPvyU_fu3xrwxlFIMfAs5U4.crfDkZRIw7W3tTq5LPkN2XWse7zgUHCl3lQ91GTnVTMq9YStcrsLzRs0bCAtGRZ29safPfZywLX0g1b.EnzBsYTTHTV02ZbPDuc5Yjv6bhu7pBUXMbKx0L5e5tD2dFl53Io2k3.Dcf_r_QDpOlBjxMr1MMM8uwEpM4g_GMoaSFVZ1TjMWoMQjppOq.30b1BM1vXh94zL3nZhFG1x5nnO0DPH4taFaTUQFPE6WQNSOW5rNB_6KG"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=949d6ed09e43396d';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\/0597461328?__cf_chl_rt_tk=DgA5OoOGBjRLGFc_al8dWHnLDBkV32vD0FsZnSwakk0-1748935278-1.0.1.1-uEK6rdQRjAR2.6EKbC3cBC3q_tL6gkDuSefZCfkwklM" + 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