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-affxcyjk0.mit-edu.top/post/4029785316

  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-affxcyjk0.mit-edu.top",cType: 'managed',cRay: '90f7fb918f47200f',cH: 'JR9bINGXxITfx2P7_gYv8e.V2dezwpbRlgjyu0uoHIs-1739147343-1.2.1.1-c8hRzyHAvx7B4yGnRcj_E.KOWZR09XvDjhmSd3uOlnfrCj3lAcVXyDdikdQPkQ8W',cUPMDTk: "\/post\/4029785316?__cf_chl_tk=4xSqbkTZO0.Nh5x0A2trWoUZk8JrJkcdl6wAtlYsfxw-1739147343-1.0.1.1-pBVLDn3TXPHi11x_DMxqdvlZiyaJCeYdPBQFBWPK5vg",cFPWv: 'g',cITimeS: '1739147343',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4029785316?__cf_chl_f_tk=4xSqbkTZO0.Nh5x0A2trWoUZk8JrJkcdl6wAtlYsfxw-1739147343-1.0.1.1-pBVLDn3TXPHi11x_DMxqdvlZiyaJCeYdPBQFBWPK5vg",md: "3_jOnCkA9cVe0Fu1D5ZUEvvPaRXCqoS.BvE1.jccl5k-1739147343-1.2.1.1-4c3LIj7pTzWBk6Vy4KYEw8pKp6H1cM7Qcf3Lk4WerzFjUmV262jMq6P8jkVKcfFgJT7ifIJLaeF5r.W_nBrYnd9R_tClbChm0Aml8sBdKU.VdvOeIwk1UNZCENUNo6FFk.OuF1lSWd581MEGzqQLak2ahPVMLOWJUtl3ISpO4ColJkeIAr4ERfBZMpMqAUp5VKek.5RS9Y8oNGT1J8T0oX8CJE8oANYix_lKr3Ook6vfG_FS4RBU6QRjhFIL599QISOgg10pQzcp5h_RGzCI542BsW8ZUgKhBsF22Yr8uvNM2L.7VSsmPrcdS89.gWIPHcMWi3SDzXUFfLLDiVb5iiZibLwBXm0TbuL_7XaRJeEh9Pa6ikl4Jyj9fVjCS9xelQhV7JkchbLBTxbZ.jTEa1qoXobkEFod0cK5NGehpXEZm1JGe4uIhdmQDKzTwo9BBNu7rQpEpNuCneZqsFxE5ImH1TJPIcgFOy_IG080n7OSDKSbNoJtd2H5gGkULreQL_eZm0wOGjhKuCmsKGzU88XBndqDo4yOCLeeii92neDU7thRPsQeZwq_NIYU.Po4vGLzYVLz_fYh9obE1ZbYezhEy30TlwMTzSOD7rMgPfDbEP268CqrhLDvTankKR5NidejvIDE3pdJ3ju5hxd7x6QqnpRM3PvtZdnMbCU1FNDEPq9blav75P8ZUQ202KTwnTYoO3fHivpmD1H4n3AGGApA5w.19WWIWa.5dS2FHLOSbmPchZu9z1Ig8n.jhwe_1vkU5qdTs7UJZrXwQNslA521b1xR2LxZvGaoyofSDqq5vzSOsqUWvvMK_re4ebKGp2eDai0ndPXHAKQk9PyTQHR4yqV6.urR5AR1_3bqolHo7FXXUqYQQEiUbgSTEiD6P337OJUSh9OekPnUMvOEkxIwHCtl1qSQ.khT7ey9cDydWVYxUv3lX9v08JUL9A8OJ0CW9pODxlIXUU226WiQaMdYNlT.FqWQWB8QXTShV_q3AvaFqWOGJxNplMzIMdCdS98krnSYWTOCzf9CWL28iDXERKCkQabJxaRG8wLKsTkod4ykko1tAjjEJjc19EgzB5ossRA_794NG6WigWe1a67xZxhi3.8gjCvz7xBPzlXYpOey7X7ZLWF7dxtcn_LDkHfdl3_AQXJ01bcAACABvDajNcsDC5nNt2wh8JkoraoQLJvfQKHtbtMZUfsSG_c4U_K.zxXT_.JSzKFRl2Dwi3nWHsl0dh8oA5ghNVTvESJa9FQeQPA5AQEv1_SapvqK7SrBoQT2_5XfelmZ9yht_3L5mqUcIuTex99BCLUrrotfQLHAcJ5TlBsHr7bnUXS7e1pSCUms0xNoiWDm2S9rYGAwytg0tQYyEOigVJ6Om1oUh2yARlXqqHjISvaz5zLYJ_gTRK1O_fxiX1LhAQDUXMKPc1T5DY8eMT50kscX2K8Kh_IYBiOL1AG5m_ON669TxN_UYSZ7S7Z8EOit5IkeiEH.JDcbnmgrMJ477LpVuKdRoYJsVXtkum6R9mg0tdFiYWO6r4Ch60tRmryY9PUzA2YYf72iwUjASkWvqdrORFAb_t3oQv3BjRlnTRsqNkGq8vzckiWGKrB_eqRk6GAlar1LCdUmO7scCcju2AYj2r16tQq0wosdsoqQc6ZWPzEi6isYgB2O63ndTlcScmUQ3xBMlqYJTQTw_YV_MM0xlIeYyFQDqPzD2x3j_JutfBjDLKypU.5wCBbuHKgaCeNEoeeXrVurpWbqbxYjl5y_lRlVWEAPEv84dA6yEtFIH8hUvt.vnezQFin2d8Cv_sSHbQLgqh4n0aDvR5_9PlLAcsjw3_k17BzumVjSzhU9tMKp_edORKGlj4I2SDRjHEpyGMTsTKa8uSUiwzeFJG.vTN2xGgb28UHHFiytGFv2QAcVjqmENge8_lfLOQjJjB_2vqINSpS7AfdmOrEtBn3S_6voTwUEmU_ddtnVonGNqeSu3A_t0qrl1dCweP9eacWzLuqgk8F8wGG4R6wXU5GtdEq9Qfx5quyM2kqigh5_Hu9WzPi5s1sI2J0Ptl8m95.Rs7CgjMBc7QS8eke365Nkv0HRErAQO3Fb25U9cOrbZESrRpOUZXeu7BQ344_P0Lamzo_NE9g6ZOoTtO8KKz7OgdEduZGhviGknf4RCG4TaLzZyiHt07CRrAfMKmNfqQhWH6c1twa9hwq3TlIlC09_zWqA42OA9.K.WEEUPnU4btD5",mdrd: "6yLGFxj84acSeTdU8W5Zj2hOX78IjWGVf89xBZGy.Dk-1739147343-1.2.1.1-eIugf2rTrNUCKjNzrnERHngk0I_vdz4HHDSS5prQ5TwAZ5uf8rR9uG5yQO.FulXmWU8G34sJCGA51.uSqb9wE4F2p2A1YFXawdubhL11CYlfp0f85pws2_eX74dS6jjoCbi_L65Fw.JPFlrmlQcMIbSI5FK7YIp9PRI0hQ5suiw1ktDZIFcchdb8BIRpteqL6jLsj9dB2o1Vh1WM9OqkcTiXVxXwVgxOSOMpySLfXIXuxugoTq9aHygqfX3.koDCfGMtQtbwqZepra7fUlMCapoxV8Lo0S79CA9D9Sl3MS3SUFHyyk3LHRDschsozYST4rNmHmaTzyNMsELXsGXbHzMtjHi2F8JO6MsHsLyMbdj3lPCjJCZR8yshicnwReVUT0l9FAelPxKhDuGBQGje3tUixPhrBn_zCSRhQLno.gZKjZzzxYYLErPqWp9CqfScxebDOnTK5rzQL3v_vqc8ydFS4iUnS5cvAk4WUIe8QdpOetGaJKXNeQqtN2qBdjRQ_JNY9nRtO9BCP4znnQAapW2Ga6qkEXUO4Yd2yphxIwbhZj1BTxJ7DB_Cr09DZFzWsoVCS6x2YGcdYceFrHd8eOqTMCHz3m_yHJW9MUhtGAYru9b8l5wYmBY7ohs5ARnfsiwYe3bovA9lXNYZCzjHtCZIQh3f_kFBSz9QCV0M0xxnqRtGQiI8ZM_5JwyVqBHvjSu0iyKxx.86RJmzovzKKSRBZAMreP1a6AuNuJqYKtjVH.8XgKfqNVOkyZIL4eCnZIcr6ouoP4bPrcdLm.7rr41uET1ODgZUlL0YVQNJekRvbcEP8ORjzh.CNbNjm1IrlfVZteMRMYr6tW.WoZRtSIkJMFcw6hUcwFW8wahupFoE94CSQVXPYVVsawAjrUVGWcm8Sesjso.dyy1Z_y940ftzmwjFsjds4BeVqoCdKjLBuj1LLu9SvOOqtjj.atzl3S_9lsXYmAsOB4PTsr954zr6sACtqM4w_XVRvnyCuUpQyuz8pkaLwBjFL3ya0ZWuFuggb_kxwUoCcNST8CyVJVlDn3x7IWPbBBMCXn6yorgqkFfRlXEBTk5twGQKk0YOPTBKtMO8LY1G2W9fEF64.zREIOQ.OPElS5E6LAsEE9US4k0q2C68YDbprC7_XT9PM.hJu9fP2LqVrHGhxunXD3cxtJsUn_E9NS4NGbmc84xLQA_uKVoES0ZlGyN5WQrVyBXAJgoyGw3wzoc.wPds1Mk8gaDy5hVIqxDpeM4upOmcibmEfX9puq.ASTIHwVhSS5yIjttVaHyU9Bdsrrn7CYDunJAwUDLiXaZTnf5vKbR1A_j5NVt7.r7ueWOTGeYMEyvJAF.GgBxgaC67GGIDO21SMasu_Ogqlu7szY6Wj8GV5QA.20.eeEL2DHDCVkU32FrgT2owb3eq14cx673BE5R_xVAefsJFBaGpR2S.G1O8R6xZX381uyOjSKV5.KyDdeNXKHZ76ftCrLQ_..BOOH3K3535_oMTOcJ4gGV5X0Y.i6zk_.m9NMvzis6SdoUlX.JszLwCGyl5fpSYIlAGQ5AAlKtd_iO8F_V44aRpdW3ZwAjqNhReeJmw3lOuZfTmel79TTzNx_LktC5I5eeZbRGBh0dxkvpGUV.lkk6X5fHXrY7GGnj8Jfl0yX8r7HgoldNUTRarO3thSzYC0pJKYPQ4R8cO1F.L2kgn.oLePgkAKdZgA_PaxjQvRKuzumYKau55hF18K5wr.MOxEuPvki06kgmLa5iLfcq.lLk_cPDvxTV0me_indfQtijRVqK1twLGkOqbvgigDmJgaqKpZw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f7fb918f47200f';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\/4029785316?__cf_chl_rt_tk=4xSqbkTZO0.Nh5x0A2trWoUZk8JrJkcdl6wAtlYsfxw-1739147343-1.0.1.1-pBVLDn3TXPHi11x_DMxqdvlZiyaJCeYdPBQFBWPK5vg" + 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