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-afffqcf12.mit-edu.top/post/2860931574

  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-afffqcf12.mit-edu.top",cType: 'managed',cRay: '90fb0cc05ac92015',cH: '4dE8WWTuUs9IRtv0W839zP9y9gcgdlCMyR4F0CldRHo-1739179504-1.2.1.1-oKi4Kmuj9WgjImUPZYpezmLj4TaSLB0YwcwIP4FRN9k0gHzwB7bsJSpU2FoJcopL',cUPMDTk: "\/post\/2860931574?__cf_chl_tk=mDWqVe1jKala.4kkiXlEnFolMvg0D5cKLG3t90tyooI-1739179504-1.0.1.1-deIDL.D9cH4WwMKQDi9hCcPgHkpKjQFws.FCvbyQdK4",cFPWv: 'g',cITimeS: '1739179504',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/2860931574?__cf_chl_f_tk=mDWqVe1jKala.4kkiXlEnFolMvg0D5cKLG3t90tyooI-1739179504-1.0.1.1-deIDL.D9cH4WwMKQDi9hCcPgHkpKjQFws.FCvbyQdK4",md: "lYlT16wdcm_NUcPU3hJm7xI_mw5odF43oShgPXG3k_g-1739179504-1.2.1.1-iVPwA6NInwWeyW7k7A5yA29K1S2iwEn265TG1bVr5H0oWp3WhxSribpGhpwp9Tj5hzfZ5tyoMjHVnMcr4kkzlvMiZJ0xD36WZTGo1E20MJgpdV91B0N9HqefRgbruGeyPLrzNeQIrv.e5yhMNlsKso0PNjupa7dQTpXILc_DHr3hZAJowVQtEyhonM0NNfZz0QOa3gG1hCr03jpdleVDWxl9dv62U3YItHax2cUxL3VZX7KGGir1aJ3JHKcGZwiMGJxAjJN0Zh3b96.uRpLa9XM1o3MwbcqMiyPRxjkLRESUBOR_.VojoWZYnarC4bklc4E4721091JdbNehoMWrOscfCPZrhO9Bral466KZPup24oQKVqYKc1m1dIHCdjZ7tiLSX1WuXw6NRqAP.vYCRCXmMWkE23vHH3T3Wpj2yjsXFKhzQFQLcFCXkguU181mMMHPsJOJ6FFtV4b9cvW2I8qPqmolvfCh66B8ipeTqCkt1ibpf.XndVqQhsT9ckHjlTsA1pcmYcEsT.xacM.urN7C3qaPcGe9gBYa.IVzKZu_FozdTuLnpvU1m2kFhgjDccgiZBPSFJ7KI.8jXOHbMncTkNuz.wee1_n65GOueF1URsN4b6TFa2qkbSQ9QzYFULCpgtxEUYBG7evqPtrEPST9vW2ENQ2RFTe0DdKPndOCC6hfBXL_l4Fv1puEpgamETm6rNhsQQRImhr9XwIDQzvVCCdWctse1gO1p7ZtGnN3o7xAASy2lrj_9w05uroYyW9KKHPU1KzXUhh_Bb15PoItidmtVvRXGHn_XZ_XsWccS3xXFoXI7H3Y5qKuHVH8vH15jcfAzj8.U08IzLUC0pUzP_DGn5pDWyaUR.T6QsdmE3SVQObug8dCmeqi3j2qrosIkLKeQ.DtSXPyVeLuNnSKyunSEKLPMAG0kAMP.sUDipPNK3cCEieeO2I0wzPtOeU2whll2z.6s9y9RyVWbrTM7sylv2qDJsj.EVLQYqeRcev30LX9k0TY62IStwTjBnMDgC0euMnwV2pbXr5uZHAloO6TsiyZWJwXBfSebpVVxyiT_TQ7TRsCyJy0lh0C85AEBxgG2TmcfuWq8boBAeyIeHudVSKywr8a8ETlLS7EjhAAQTFLuWQz..nwtTva1WtIffOXqWG5873dU.xL0e_fe1xqaZHapslizgSz7NTWkw.vgDU9wZrZtQGONnNIg51WNCbxVZRliHx0drQl4_inMM0OtGDY680ZNzphSBe1iSdGBM_7LR_IQq8pvq3A3GgfU51lfLIJDIgM2rXMZMW9vBi0ognVhT2FSassLmtejbytJiShXXBBYJMvUq_1fK1wyDlcbCORExzQ63tnIRGwUTp00QHKWeJBc70RNKwK5L8V6TUhQB0435UHfYGEhy1QyUqGSFilDdMhvUbaVD1k8PrIRrEkMnJ.AHl2yJwhiBldtgtaUhlPo5CAmYpQsOcwbwzHu0_J1h0O8093BZyb.Qb9zGOfdCG1ZCSw6xBnoezlPAlJ..ClPA2Ck8Jt_OSbWIwVuZE5IZ9f0P4jo9m0lSDNKZgH6Zws4gG2ljOkl0tI8JYE0pVaPTDTre2ojX6zKch4ixqFMcL4LRyQ9EU62vb2pETidhtFOiZ0dh3GS_sKW1oM_4lnNrvwKLOWokUp1.dhgFyMRo7y6igeV9sSIsyP.HE_hnehzRYKiq_3GrcOwcoWQY5nvxg5brtlKO2dvzb15OxHlD5CmFh0cxKvzsLchLenmZK94GRHYad3fhAbs4V6bxQCM8vp0P.RXx5UbkCZO3AXNO_7YBpWpry..X2cryDCZGi78FwAXIAExGqJOckeR3QuGvZCCcbMthPHiYlNlSHES8lYB0Dk_zwgRRko1_7vYtDInUIkQ9Zg.K4iyabFlT2.LddWUAeMlpResVOnKY_nBMzT_OxjXnd1BBfDtZ0fUqPdBePcLLR8VVuEDU30PilHiu3t7eBRalf0qiopVdvaLqNuwDbPvFRgAW8RwE.z2kuVFMehDs03WU45Vu9M5htZ1A9HZuDIZFmSWMcaEZfWOAjOMBqjW_d2XKQxuNz8dtWCZgfEjWkxaAoAxNUJNxlhXA3ynsfiwY538j.Bbp6JkTeJ6u5bPtib7U7bQGFxt1oPuFDoV3T.RrP.a.oEFuOOGKRRYvBg_BwG08tBYIQxuFLeSlKEw92wAUDm3aEFZVWyU95rooMmrTFNhN_bDJ4nmuKjfqpr",mdrd: "bAs9qB0YB6DpaZClvs1cVf0I_86Oj.kN1u2I1xhk67U-1739179504-1.2.1.1-D1E7oY6UdLiK._raBZc3B7nQPo1xt1oGN.ym.cBStT1M52VGkA1mdaDJpYpRLqrVSOXDb6HgMVnAEEDUwhkQDELc0hrXzsbbt6SWjJL9TyFh9ewZEzxuOcCVI6Doxxp8s.D6pKbzUzN608muCvHcZiYz.VLks_T.LJkmYYqdwuf2Cxb9mP1LGhBRi3oHmzQC.JP10O6GGbkcDgV.x0l0VIRYF.eBvhrFdsS5xduYNwCFKfY.ZYAF26TfPEZZ.psKv61cH.Ov1EprvXITS01KxUyqdgNRlBVCVNYGdnMIVbV8aly9S0ZyeCpXDtXaVOB8BQQWTzsE4DaZ8hIfkDYc12KRDNnjGS7IkrPl6hR.bAmKLGLMe6f7e5GOvi5u5sPVN8vWdqsfXbVJPrHWvGEF.hc1fHIRIV8w6PkSo0BU94GWOKuA0p5oAQFdRn8xlEVXsOcalZrn0ZkXpDkeuWrbmHEWccXIMeO1T17JzKFwk8JlUbwfdvDIwUdhCLOgDaWXvcjiBKkzq6IsW8mLTk2_r6cVYyQ.tdWJbp7af6TPGshs_gF0of9XvVGGcxfe2uC1TcAR0HnvS.rK_y7qhsJuRtBc0sZOufpFvbvsuF8HbHnoNQ4rPGYKBjmKuhMGeFZbyMusVKwGDsZnu4.yNfz89fQV76OAeIrKRZKIWCFrh8ov0.1lag1sLp4Aa77T2seehFJVzeRIYWFy4gJuthfLC8YAWFRU4lNxS8.EPBVj8ieuK1cuDPTGlBiYnvEDWTacbPE.EdA_KHod6ncJSUr9OjROdRvo2axjRp09F3ORwzuzT3tSR9D0RlGc5nzREBMPlqeep4Sqz9LiWE3.JvFDdk300YPRPnJxFkTrkrgBlhiLkaGwfvF9z7.8gnou5ug6N2O.hSDBVHTihft.O3cg7sRrVcB0prvK_BymdCeYeKsu0xpNWEBekctlEuI.Ldf_uSJjOlk5B4JOBAsCtiF0HjF7b59LoZQ6WZ0j40wyQj.OwVtK0TA8eF.EZpV5yGkjCSP3kfRrXM8ypxd5lI4hiQJtW7oNrNievDdfp.ldB02DaI6FRid9TKgd7x8CzU9DN6TpawwVS5Tp3R7VycKyNP76hKlcW1H79waBML6kapS9SqidlvtgdA944B4vbFurnXsMBnY8rFq830ZNp3N2ZBDMk8J3xc8eQ74XG0FIl4u4ayjTv3JU1SRP13RuWiNM19MEFAZA34._8usKFivSk_madXzWQInZEXiMcpvn4CX4rLRy2Dg8GOiaMLAPDSXxGnipYz3UoyccJLZNt5sMJX95EWiQAfh4G0XqInffrEPA5DZMbCmgfPHp9.Z9_eiE_IyQWmWEX5MmhzQwNC88rbdWq9aP4T3U8T.HercJpMb4gqBNqdT5VxYv20Z5EKHhbFOK08V3Gnwu9iffhclc2YCX8iivjndqBG9iALpYE30CPJ1ikfJhS55d0L2XZb1pnGP.qddBMOy63JRLxBvTRV4Hv8qHKO1vWKCqB22l_IIKEBBmoDwqsHUUlfIdM8g8.EP9QK_6nk6OOXYz.uotThz7JMOKKC5qmzr9RTkJCiWJQ2mO7aZIRojLOcScpkNZJHWDSzDzwmMLVdi6rWBc60ADsNGjLvf.CRzMDsdVqSbDbeZWKU7045YR14w9XhvkNrOs2Ct81F._M8mYT8koo2Zy_bqDb.a5KaYVQf36VPlX2XX0c.dJaGUXbug0JFsJ6quP5vaHMXi8fWwTwNmgLSU0XggBYqwKy0Hu.GOwMeXuXr9oJ9hZNIZ5oP7UZF5XIQkKPK7mpnrXkdgbrpBw2Tpi89YkYIfI7A3qF8bId8Y"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fb0cc05ac92015';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\/2860931574?__cf_chl_rt_tk=mDWqVe1jKala.4kkiXlEnFolMvg0D5cKLG3t90tyooI-1739179504-1.0.1.1-deIDL.D9cH4WwMKQDi9hCcPgHkpKjQFws.FCvbyQdK4" + 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