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-affdv4ul3.mit-edu.top/post/9248716530

  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-affdv4ul3.mit-edu.top",cType: 'managed',cRay: '911042f82d2587a9',cH: '75nIRVzRKQ99hqiXfoqt2w2S2pvFkw0hp6n9g5IBs_M-1739401926-1.2.1.1-lMXZNi6.IrH4G4hvvs9XXd4Ogd97uwpmfg0L4nVaxS53RukAJuXyzsgTjrlcAGxn',cUPMDTk: "\/post\/9248716530?__cf_chl_tk=bX2C.BUjQks9_vBZFS3ssFytv8jcPfJRNP4vJ8ZN2PI-1739401926-1.0.1.1-MW2b7ppB8Z7nPAicR4uf5gqijjVPABRsU_qmlgBN_1k",cFPWv: 'b',cITimeS: '1739401926',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/9248716530?__cf_chl_f_tk=bX2C.BUjQks9_vBZFS3ssFytv8jcPfJRNP4vJ8ZN2PI-1739401926-1.0.1.1-MW2b7ppB8Z7nPAicR4uf5gqijjVPABRsU_qmlgBN_1k",md: "hl77oMV6quv4yqrAoYOoEqwDuhgt.6EXDYz1bKTAZVw-1739401926-1.2.1.1-8pa5N7FJhv0G_tK0F47Y3jGtxSa2P7lHqcBtE0oxsVTaLH8zHB4rELYscEkhm4CvEM2Hfxby4xPYeMJGRWQcpUQli7la_3eqfajYoDOF2bgj6aDU3jYc.YTUZmaFcrVsrD._rUllLBMQnS1b.DnqfayhYMpFkee8voOZp6EO0kJaajsmvg3Cr_fCx16VFhkZlCpQHmb_f7nWtIo0UbLDIGmIksXVdDqzWHez1w4sOKxrsu68CggU9_VhET2wuM8Tf__xXAr6diugMXwSheK2DLIYcuzuQMteXnUq2loW08OskuNZXX7L.MD4BmGKMiBokCVDD6RdFxIFePHLfKUx5NoYaZ72m1WI_5y1kVOrd7TYIWbrl61DO3IpyO8vuOATbWB4Qy4JZf5D8d4iupKKTv4C0kjq5LVcx.eIAX5Ls_eWLFcAoWNVgmAMf54BjKuvWZL2u1vKzAvkJotqvxoDE2kRB3B5LXw2iueeiWN8Qh5G7QRHmIqj9qfyYjNVDtwziTecuSUlY5GNOgdRv6CsKfOfU30jPfnpJH595w._ugu_fW74dbs.1RuSzamkzNg1r6m1YlE561WtnooZZUxnqPvA91IR3J3sCXWqVKs5h7X7qmcmHfBsXiCR6vB4ztyScQz7d61maC7qoYfTQv3VE5mCnReKoFaHhsryAinGlYK6nNV1R8wNgnSnelbcYqku6xsppZtqeO0N1qiF3BJjXjI6q7YLwsCeW6LIUPhIqbe9dn8QT1kL56cHnK3_O8_bTk6RAbhJVTYHCTSpdpUckWPjXmKiBwc8_MGyMbcGBVzu1MBKNtmV2XrA1VBpNVXyFw43vSC3HUzjhJH3F2c5bBVAP2Td0grsX3SvK4XT9xXwcWQpv_hidu4KLyIhj9NZZ9pcjFwhcgyNAn_YT8YU_ysq_BHccW4m1cFWVRoRU61HSJZ2FR36rf7jaG3PbbqyQn1t0Z2bOpLn8AGQ2PCtICoBUu4zg0yuiQF2qhV54KV4VY5NJYbAIwmMF2rTE7g3GkHQWxY6QliCSyt8keX3S_D65fulwZpc8Y3eG.NPGikOlxF1d.xmeynR2Zblqh7Gcj9H3XHVXmA.0GTqUrrTk0z_uc6kQ5vGMkq5dYfSN.oR.tgpX2TAhFFS2px6cIDV2ng0aX9F7pUt4gnodvdTdjTP.nos20YtYpniERweiio9yj7wHzBqSMC_d4KIPclZHabqn5VA.bPay5_kG52TBXswk.1vMTRTOOM5tNyyNXATu.niK1OrgokZFoIAOVeZT92z27oSSSOMAzMl8GKLxqGvyE2V6KukRkkHHJR8_YlMY6OlTAyOj42goLMRi9kcOzT1Td9WVVt4mIrvRqW7183gCmdFeZC.HZAraizHLfY5FANhGMHbVLbsozZKraaSvDrVq3yG9AbXIieMasPA4irMNAvD_dXytD7PJApIs3UctDbR7jNQQcNx.I4jESCI_KzQ3kP2T3MLb9OIs5rBxfzCHPmYSj.sgm2qCeAc8KNP9EAAA4untZDS9_1OUCMcIDV_LKeXblFS0OsFvdezNF5rW5r4p9K2..07A0ntZ7cacDvcSr.Pi3iuYuB9Ou8Vl1IHl2m6zaXJj3M.jWe7rELlbCrkXgxFmQq2G9dw8onKDQu99z3RJ.b7KaiaKJvX6RNwmkr8sxwJkXpIppV_MoIsL2n.j9H2RCNALcBLbKPgx2SsQdrdLjXSLWu7lsHZc3yTQltZPidCU9ty3Pq169utqG7ZWfvJfEWiZTvnRRf233bpVn.ZIU_l4ZQIKTBOgXDp8OFUeiu8HjDAvdAM8JsxbIahDOqZoEb4f3B.ucQucugy9dGdr__c6T7IDVMhSCP.XeWxha1VbRu2VBDtx5iMWmkYHjxe.nuJDBT2JE7kF5kpibRIMMGn6vA2nRzruNn7MnpaQRUQkK.phRtlteihkGfjK4Xgn5lsYdxmen_hvG4H2bqkFbs.p0GVrMnAhpNQ4Nyy4fuX9TXGG0j2iQME0erBsWull0RTYkUyE303x0WuDg2Y4UqkMByykW.v9bYg1w3we6fH4VtM7GkB1MwDwa3hrZlQCPOxWT8ucrURBoKD_wGYlsanCjsAcjhc67cNSKet._687xddYjArppQldwzzLB739SYmYIs3CFAWE1q1HbYyi1lwxgnJ9KJh8eySZ6CP2jvDsqnsN7zZX21FcWaI8oQ1A7nBeQ44UYxFmaUTnsN7p6yvsldHBmUE",mdrd: "u7FGvOlFr6CewOZ1HMQzz6NZ7bg314LLT1sCn_riW.I-1739401926-1.2.1.1-zem4touN3mnO2sJpEOFpKPiJeBSuciUGMEaGrqo1SFFlB4i1KmN6eNCoN7R4q7ptc4.vPcAFsqcMCUiwDoTb6RFuUCfKeGlc88KcjoafJ7Tldh0qECOp5mRz3flw2ryGS_shTsivTH4fa3Q5t9xBfharfeweSX9GzSR7i2yPB3Xe9UzoPTGihXocwqnSjlqg_.djTOP5LuMBoScK6arFH8zZBK.v_cwbyd17PMQLoMm95Rdl8uKvAQ.n0p80dtzHOJGvU6q0zxURWeDEIdrSOWdFNqLQEa7QxWkRsWKk4muOieL_7lzObAJ5Wu3BcOlIUryTAnz1aErzSX3jqGWvgJ0riVPXdapRnp38rtiJepR8lJZWghhwZq4m7jyXEtmKsIJSKrsrFUl49fmzNqkcNOgfzc__NMGPlzo5MUNf_K4PYY777OhIIcIPZnHEdGPkoM91_KORbxvzMY96upPtmbQBqxZsKUCcGhKrTLYIkjdXWzZlDJo1o0xzDPl7ccg15m1NdSgjAIOhDcfeJewlBr4a_381wQ6DK9vGQXcAX7ts2PTT.ovrZuhFJF_pJ8ja0bdrDleXqJ_N6z8GEngHShZoiPVgkLOYSu8TXSk.Wt3Uaph8GAuEb6diQd0N2t.0QbSki5O.1_eLStYZR2QGhkm1aRBAQnBTET8_4.mSE5Wk1tCcbwrIABaEYsFbFNL4qvb7.eQat1KtTVbyCxmrkE3hKln62Bkp7t7xBu0J.rYoY1vQrn7GHYdNGQzynxOL60HewHXEaTseYFvuXg_t2oIy7YOHbHM5R6TwQ3Y5odowutQBd0WMHU_kXlZaeFn70Ev3cyjYmuICFfyTTJxGjM6xQBSbCziOvoQ12_iu08gp_bFajrgi9YTUXIfwFv43E6h2ejAZQ5xrtMl4yHgrJt9Dhsh.AG8Z1X4QhPYR47ip8IOxCm46456gOsJNoX2nrmLjcP7YJ5mOCu0xZxJwSZ1bWrjbzu4X02LLY12lxrG1v_9LBCvIkGApB3y5ImcMOqLD_ShkXpZJBMhcrluvEGEKwYS.0kRl0LA3PeJuo_gJsOIIjoTkoghXKOGH6HGS5dGmgFWuwCMi_d4d_0GNrIbExpQIpl8A2HyagqmT.W24DijwVqxRrCIe6DbohpPsifXB8bnO_Zyb4CBOzzEGLKMWosmOZv7DEOEbN0YKcazR_S0wfBzz3GtBpL0cNyLYwERI6lhLC6ksVRedfeHjNMJMZ0potDLmXNw9sUw_oK6wZ2MEaWFDuaxlisvOhVarvJQTNVQaiShok4h3a2Q7Zw6bg4dSOhq8OR.HSsGLcxX1DJPTZD1Si.5VT698qoua5bvTFdQgfaWMPV75QFPvIa4H1dbnrwhSUqjW1thG9FqalvZyNYwK_E.YLs2BT9MJXwMKfp_62SayBRDVv1L32m_d7fvcwFY.u3AA9vH6FWYxOK51GtqKp_zvx8bMk7AB1kCKMSOmZ8ECnsrIPEf270GQbvphA5F8t6WLmyiZKhtr49mxOxKoApU9VuEsTMhb7bIbkADF.L_5v.6Lc.ceuWyO2VMFNxN6gP1JAVnY5j92kMkj2wcAdU1xK0c.8FviWtwaUhZwMO80cGB4swGJqXIrRvl9JkCI7zMv9xmxMb_zEBg_w5EdEaAsspZC.z16zpI9im82q1Uwf4WcP4r5sWlpBo_anAlTqVz74_dh8K0n4RQAQxN4LhgG5Mh_245NQ0FagnCDnuwKulayCzWedEol0mcted3WiqA0wk9n0YbUOJH8pQuhTFkv1b19U3LfC_Wb88tHBmmLdqvLKOP52w"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=911042f82d2587a9';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\/9248716530?__cf_chl_rt_tk=bX2C.BUjQks9_vBZFS3ssFytv8jcPfJRNP4vJ8ZN2PI-1739401926-1.0.1.1-MW2b7ppB8Z7nPAicR4uf5gqijjVPABRsU_qmlgBN_1k" + 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