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-924613954025.mit-edu.top/post/1520738469

  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-924613954025.mit-edu.top",cType: 'managed',cRay: '90fcd09abdf5d677',cH: 'tAOKwQ_kqmH9QdIYPIk768XPIHIUgcv9PlBQsOc_Uqc-1739198012-1.2.1.1-lCjnOrUrWlEZyAQLbuYv1.vmvfkqh4vvvEfymChArfXjxamwHXc_w_ZiDGyukrOp',cUPMDTk: "\/post\/1520738469?__cf_chl_tk=mjGG0nmBsZe2jTJANZQYpQp7NfTPSIFiOecqOAKfExA-1739198012-1.0.1.1-.blyKIbw3qbR1VO7prCoawUg8qAfVuYzwMc0Bo682L8",cFPWv: 'g',cITimeS: '1739198012',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1520738469?__cf_chl_f_tk=mjGG0nmBsZe2jTJANZQYpQp7NfTPSIFiOecqOAKfExA-1739198012-1.0.1.1-.blyKIbw3qbR1VO7prCoawUg8qAfVuYzwMc0Bo682L8",md: "fDQGOgeLT0t4ww2NeYPyQHG8a1EQGindbBRpFMvc8GU-1739198012-1.2.1.1-VHJUt2uGJ83pxnjX56fbw1H2RYVNje3bpABIKGFfQsqUeoJBSd8pqVWyOHr_KPYs2VdcP_C0n3qG5tiX3Oom5V.YZ4ULyisa4JH0D.u_cB7lwMNkjHFg41DCeBXuPXa6tVObVIY6ipoFZE.DYW71EYTM4ymYNrGUg6yya6FQ6LmkcsYAUeN1Tn4oEN04EETPctMHRj3.z7FT3IFhBRrkUxV2DJgvDGf8pq0z5p1zQJ.Pr10q9lNRjQS2jiZvwXeVabaqm6XtCJ3TFR1RdKGFvbGyvwO7wOhHC1nEs7f4_EaCrD.FljreABbT7HfswDqZFQ9vbvDETkPC5Kn12EmDohyyx0xi9hKQiLSnBHiW3p6gDnDe7xUia49xPi8e_V71x8qMmXGtDqCgkaHzam2CdMQjFWJTmh54.g0c2xTZDnZ_nRcpYAxFL3SdYaUroPU_o_HYbFCD.rbT0uCh9EXMGlw4qaGnncCZeEiC5Rn6iWC.c3Uzw1O32ZDIffX8bV6j.0tBtmtkjX9MKaXt7fW3UnXABJeLspkL5YlSxStw3AA14QwBs.ncZ8BLoUpni8TYV8NbbHYxh0ybkBIamYg.tXHqtGYAnLYuExwhqhduVVQNm7.7ywtZkc5Q1Q6.YVcMtxWzmF3fr9X7tUyb8VQdcbp.l6R_tFX2r7uHtGMJuCWl2VyyMnrhokyRxd3wDKj96EdKhjL10hYgR9IBXuno1FlT.9s9N4AavpEJHmfhR7.B_CRacUvMJhWl_BfJsWS9.909QzToQUBpk5iSTwp9sK3Phk0LClyvWKNhoWm3SZJ9GZk7eqBGWYr8i8W2jjeABtfO7pTBDt0Gy1TFd5OTi3vJ67tlPJ.U9BPvLiNF75gX7k.Yw6UZaLEEyIi8DymqGktuVPx8h_nD3raf8kC73ZCzo.DbecFFHjPCpXBY5jOgCeDkazNfBoTOElTwTuTVfFpD5MdC9EonMTQ_qXfhtJlOncxgqoYXCNoUgl__eQgAD5HbhQQA7q_FYMl_dxOW0diF7wYtkdGDXzNPybA6X_2API3C3yUWsqTbHqM1H.eMCwrDabVfp8.ppXpTWfSKNJ3fn_uYndLsNXNNrHA1U4oiA0_sLouUpyL6a9tnkChkl4P498ZiHyTFP3ykLm4ScNatEj.oDrVfb4m1KbuqaW4tlfvm8jwVwIrDfzgEhlSHpBrL3kfVBZyTD6UDc4ijFWI74M1YgG.jQx6QS_3fqmZYxnXzSowDIejtMDMZyEI9hC7.ewB_hZHFNqWRyisqPJ50XH70M3.dtHkM7gfGO14xVPPXXGQ2xCvGR.l1m2Ot3sniVnK5b4WuJGynHIF1yKYrf2_smh1023X6rT85cGWtvqIYi0vFceoMBqZMR8nhKRTZ2L2T_FLQaE4noK2XwA5xEnWxtZk.qEWFmWlCeLw7tkKx627KWkd0hiXKn5EG3JWYiBBTU6R1Tr6patiUGQBYteaN87P54AAsMHq9exAcw1i49VkASXrWwRDdF03a72QSE9w5E5PZgZBax0NiYZkhtoslKrWyoKdUvht5FzeFSCdm1vG0mdOXTBQBsRvA0wKjJLVEHcXzc.XuCGuGgu.bNTqOpoWDVCv1BjXrwWAcb5Q.PCmS.n69e_PFOqiV5sCcapMC3oZv3OQEqelpSWZMXyVrJ8ngrkWTx6ElGkKrfgjBMInDRLCvAu26BWIm3gSux4Eko8Qa6EQiynjhoMfiqH2n1rFTr0N88Y_W54RodMOo6SoGBSma.5Pcy_ygZupXVTgs3QvRHN3O.QEVi6pviHfL8soWAzR3_HVt9qGe47D4ZxSDoFHwVEnObgB2DZq4dJVwgA0vw1kAfsPMAuTK09ump9wS4SFK1Hn8.WSlsijBnsbhe8G33UAqrZVLx34GDbBvhY73GB4_0NOR0RPAmGLl3rzaP9d7qnZAlWqMexeyymKbnPKiYrJ7KZOCroe3gzLoL9c3KZP_9._dhzLHhDhHsmGb88_EEnEJySRaFHcWWjFOmHrEpkqdedMlBtlEOBxu25muVMOg_tmLhsdQshAnTLxc.K9FZFPi3Hi2wPuj00GC_LNP0WI8pJyzXEvDhd_93abBrvLqMaLFhUno1BcTNq8MOYLEXKQNZ1paG2e2PRHzlocF8wPN.tRrjq4r0lO48V2Tbix_oqk.ecFx61Q_mSuvxpvxyhuRDMd57MMhzSOSkUAJHM2rFaPIplrpJ2Uv7574aGp00_Tl",mdrd: "70qlqpzUHqercjrjzYQbqFucPLpICOm04xYQ1eRb4Qw-1739198012-1.2.1.1-cTyK.OKCDQ.tdfkBmYUUXH8Ha2ifehtAYljWSrS4Cb5qxqhaY2jS._kbTGP8JUMPaU0nfQNjdkUMRnbz.emSyI9gmNmcpL_UJ0dXDCCAqtnmWO_gn09TtBd4Kt9LlYMOjhO6IMbWsjA.dm7k6TH5eXYiSXQ3XWkaICMb5pPXHXCzwMND9mU73YyElr5GNnkqcjHZTFZDdYm.Qg.EYjO4h_HhNBN08n_CoJ.svroooROk82Li4D6n7ciVfuyOvVkV_yjsMGvZvXzfhbkQSiwvbJ6Q9u8d_yXm6LrvyTm8Yk.9Iihce2.AujYIjQJfv7ju3Mij8MRhKCfap0fqKT8StgwCyiv7NGsob3gwDYEFMjqR6qFHjEjdJgzvdYBMo6zAxg5EdRVRfu67riffUGMhtEScgvl7CVCatJn7Av.ZcD_MzyWDZMGe6ciTL_RJxwcqsXIAqbR9fYYsdyAdRWlGfQY1lznepvSXu4ET7rlQ7K7vVpwiVJ2o_mj69AT0kk.lbUxcmztGszAa2azSoBipl6HaKaCJaP9OKsmrSOqErTCkarSaZqMeOL6UcOf8h2DMYRQFP_04YqZZt2BnjHsmL31NDBZpAO2O_q2fi9S9O.ho8Ge9fujZLitaOMrIVjno.hyKjPhmH84VMnAr2qEx61mDPe95IxB0xR29nH50bx.eFb.vFzMEADT0n9X0R0Nbf0vMwbFXJsktuzeNyr7TBygHDM7NSI6LcDIFCIPovJyqntY5fg3SGtSZ3yUvelm.sa3KT62cfPPv4B9pVml4NSr8SEoJGU1agGxpuTNFnLwQI0W6_LOJNsYWefKSF6_0_kg5W0m2m_UCqQk6MIjtAEhDFSZQ6J86SUoXTk6Oq29FWXLcYOtDbX21A3kBc2dFm1sncWGfXllHULUkxn2xMkokfyi8Q_kSXwkE4naZC4sK2GqsSQOc0i3WKDnEukWU9nksmvNzCpQ0SLdERINZNybhHhj62U.KH7hZM3rZEonsetrkWt617fFdfRwM6cqvTXp50ETDe3hya3wLZZZNiNz9wZkbiIeB2wEbBEyB4IjHMm5opXg_k9QqZoG8xZ.i6CiGgEONlN2FtvDiS3V51AGIUHpqy0Pknkybf1OGmUxGuejjB15YuovjqHOO7Oqsj1PpH4tFYMDrtOGZ5Z.Qu3k9DEZcISGjus4EXfLA00KIn8tpJTBRjQ5jCDiPjgBNhhj.gTn0tnvXxmDOT52v18kE5qt8dzqH5C7cSXkBqbo8.poqqJx_s1nP_lNo1j5wOr2cBWtZCmiEv3aBoPGZ.AISzVreBHtt5t19VGhRNewbNAPkCOO6O99J_RAWd0F4RwM19JKBZt9UaLLWtsCf_8hSaoXR4M6rF1C1XliF7ibyavD.x9hy1q3Lb69kwelrJK.j_mW7nPIEb7DqouL6Nvy6CET9pDvO83nUkmx1s9jkQaeo.wspcoxCCCwNy0Bd7c9DxHoTgTn0dG5VB.XjtPgeXuGujG5p2Qht.9aWd0yl.wOx88GJqU2_XCVWRHzYzMFDnPu1d_uNuJoLJEl1.15mneZ7OmhZRQv3YwFN6beh0lRRIRSMSJUUKnxFyeMzPTSeuEMJjEmn4tSqGO9vlkHPfDMLKyMSPwtI7vTra.E4Orqxw7.UA2WFeJ7OQVCWSntKZKnwn0Iy2Pbp0.atOsjW4bE29qRrb1dV_EKGOSlZdTnkPLOvPkSgrvOmcqBQfIO7xT_rGd0QH7XYUm62ewrNu523IzrTyrLyFZiKybt75XTfDStfzJGviVDhf_gNzCWRfnoPmbhB0cH9s04XKwBvQkQ_yK05YJU8EdDHH7E"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fcd09abdf5d677';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\/1520738469?__cf_chl_rt_tk=mjGG0nmBsZe2jTJANZQYpQp7NfTPSIFiOecqOAKfExA-1739198012-1.0.1.1-.blyKIbw3qbR1VO7prCoawUg8qAfVuYzwMc0Bo682L8" + 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