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-afff8req4.mit-edu.top/post/2805631974

  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-afff8req4.mit-edu.top",cType: 'managed',cRay: '90f70f4e78bfd63c',cH: '1p05icUpcFsab141xdyMhTuMrZJ_dyQzMkkxg8IALGA-1739137666-1.2.1.1-zHTLxUIhu3xf9wyBG1lqvbxwDGSPwBlL4EwppUv5EdakeoPR.AVMgBQ3vfyJzJPa',cUPMDTk: "\/post\/2805631974?__cf_chl_tk=UjRFY9EEXBlN1QVirnWeLcH3xoTelENXY5_C9Jvm0Us-1739137666-1.0.1.1-J3eOqjCiulIIICok_0b.fcfYwDW0beg0gPr4wuFfppg",cFPWv: 'g',cITimeS: '1739137666',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/2805631974?__cf_chl_f_tk=UjRFY9EEXBlN1QVirnWeLcH3xoTelENXY5_C9Jvm0Us-1739137666-1.0.1.1-J3eOqjCiulIIICok_0b.fcfYwDW0beg0gPr4wuFfppg",md: "cO4Nc8j83IuYwiBuW2imbsse8wBqtK_HkG8FtqgVNWk-1739137666-1.2.1.1-9hNEyxfWbWl1IEjbscnfevMeVHA77E6vKKnq2VkdVNgbpaA3dQVNl7XCNmwBSoy2NqTMEHDQnGK7iItntyfFx4r0FsxaTCAPhD7J7UVAXVgVjyl0F2buT8xS6C9.eWWITlQ5Rf4PuJrVOxptC0NMwCD7XD1cWsjmpm01AAMcotxR4RKdoIrmlZ4gmCa1sog5nAeejSsRHkwKwGCsSQiInFkDCAEGVUhw.dHUf8daEmaYCWXzA9J26lKkI_ZgEf7wnfhelP6gYgNnW9bnmpckTc9Pa.Vcf8uUo59Hboxf99L9kZJMoAH8zDtaadg6D1TaUJc3o0aJ5wjoY4U7JZQugYs389Vpb79w7MjhJOVjbNx1GFgOd0bZIO2Z2bMSWpVnKoGoIPTwvdeLc85WOIgCNfJCgvpX6m3CECHLNIv4F8.C4e92Hf7xMsK87GFGMcsbnd_gsmglpFlKPasdcF5YMWP.ObtvJExjxyZZIX0J0mshvyZ1rQ9_R5waVtxS9ePST1NHJAOJ8hfatEF2REG8IlH4OnoS9O34loQDFMGH2d8PWpV_MNi0ZcOY4IdmlPRZv1f4f7OZXPp2Kvok2kU9CBcXBMJcyD9udgzj19NGpk7DMHpNg_WWAHTHCh62fvhN0n5WSQzlZIwdLgZnjqil4HzXNFzia4FVzw525DxjuiTSzPqo4nbTe_a81k649KofSSsl6ByB5O9v9fwu3bALnfqLoRyLeLFYhppksDksFegRcIqNu4HrZfYd8a1ugCLUEsWCr1NtpUomOzf8RkhalGGfY49AaXNMLB7lHAY0.DCCA16wsBZxQEpRroRKE6RKTskxLgOUhevLuBCVk4Tk045YWEXywquJVXuefoTPl1m8gHM1h3vLrjQJVEt6PVhVmWSRBhH_YUltcsgA8GhV4qL_D9ER4C1JuBIaVBgoQZQjRdH.sILIey1JVNO.dGaO5yGn3sl_EoRAkEKcNXk.bNmwxclHlOJsliU4vi.JvWbc3fqnm.LKjOI_teKeaQ71.GP_0_68spy.eAy8yP3bjYrQKQ3gBaRCTjAILPx7yYCA9D2DH9LqdyEgwehjD_oY.mp87lbPH4b5nQODneWkdax9yMnM51ND_ihVyh2n2TTxotzuYs0JLc73Xwx2zJauXvhh87njgH4N4E3FNnvomApXZcxR9GuSUoKYrAEgludOuZDj9GD.CATBtp2eRclaDC_iC5R7bkVKAlCgF7zf0DVnZfUmvv2KTOoIIJunCqw_uf6OfphuqWGPUPpF3zQWqWfYXXqYnQFGKifBhXTLlSTqquVdJ7epgTg4xeQcwnM1hpj6b5dJwzqRlHs.yy00NPhny3qzffUxb9QxQ8c2DLhPBlh_4vV0G_WmIs2TFzjg6MPn1C6SlB8ziU_Ff3Vn7oufZbOiyGfqKTrlIm8VlrW8cWMykTL5cDwEJN.kKp.miABTdhLt6.92OcrVKx8TebY5iW5Yfipg9K6Ulwl4qQeRtrr7wA229ouU5oDDB9ABFH0Y.rLiUwxwoH.7erYuXuboyUUVWwjqhzj38bVyKieOOcFS91qAa2dOOg6082Se3425P5AlLbCUxQQAUbKga4pEO1pGj3syjVrESbl42D7OUj3_syRx62zmNHWW_oDpNnXgj_sj.IKLAyhNbQaj7O0fLuuO6a18kt7e8_WzRZWIzG7rSp9.Tf5n2srbpcXpK4eo4vcRvxMGNMZjpB7A3IOpqp..q4JA9W1CVwdAvrOY5KPen8i2Izu_t_NDmIf2WibRv0yTvH4p0W49CJ0lDcuhZ1vH2Mak3YYqJ82umVYpNtGoyQlZX0yk65wbt._toF4qkIq3B_hwLwfj2D_QOApzalJngd3Yb6cJIpdTfXMXFzA_a2FOMehnRLnzoUDmtzhrwK6D9l_lECFz0G4AL1H7Qd2oVTwXTUxkE83zzIf_UnQqAgvtSJ8dPdJFXRrT4DLP0s.8lv.STgDF3806TkfjRGQ5I1f3LrLT_P_dqBNIYRZ3hzd8IZxpZWr0sK7S5KKdr1nrh6XdKzjul_cClrlOoW_mESbm4S12h8po2EOoLYtIMuX6Jr30Ol_rrSa6311HU7.KCJG0GoO9No0Jk.Oj4sxCi69W0I0jdPowNA1YXYsKHk9uhCfdzct_TBqyMWAmZpJlvnm5vr7cSCjIBFwQN99JHSaiIhGNoIwqNw7XKOkRwVxgiFHMPICHj9QO2N9t34kQqTxYEFof4zpb",mdrd: "dHFmtDOOXxWXl_GKW9v9Y_Nv7Zpn1FVkKNguhvOglxU-1739137666-1.2.1.1-yxYGsurFnMErwTDFgx9fVLz65.W1GgZSj1vEZ7KvF3658dxdQaQVsAKYtt3epz1v3ZE4yyWfTLa5sppTRcx.wNM0yQKBEbLiLEFDIxK5C7H516Ux_DShBd_wRd1fOAtV.RJ5q7Wcy4gZ2O8so31wRE8Qro3tDLr38cjyJLZSnApyv9xZRTwDmkezg4fjSTksPFKjtEqRIkGmnNTInM2AFtMDYQIlm.XBei1I5HwDirkP8pa696Pb0Qy_dPFp52xN15JuljaR9.xgzRVJtYzxsm.w5ShHY0ze24rOsGGe2g2y5Z.BizNhmbsCuiDiocPotGRIn2wygpB69G.Prncfo_61LTHU.urkSMdZV3BD9rb7f32va07MLEYt1mBfeTXn2GKgNKTPck.Q6m.V36dDfJta.WQtrroVwmmajtwsF.CikHIfopgwLWlUX8Z87IkXcw4CLA.ns167RkAKHr7ueArYc4ggODaRNEgRKRuyOb_W6FsjitrbaudzjboiEQe.nOwFEXH2Ow5ecXEhMd095TmfLkWDLuQZ6JHWa1PaStvDpXT.NhFj4F9kDeRuZ3a8eabUxxZMnIgzW3Z1.X1cXI5gNkSE3GZjR6MD8ZYkiXR80X7tF79.pgQaQKHdfYqwVq98W9t0o_denMXxHdnqma0JNngZJV_uoDw3QoLTbheNIAidZD98nM5STeUsGNoJI9GHbjocIKmYmZnIqFeZZlBWxkXzqZzLNYR6EV.xHxvID0_9RUiQsHJ.FkU_ZH1Q.I.654pFO6N_cEYgBi2TPGpOSX18vAj3obTM5RBXNW25QyNa9JSoAtCybGeQiHbq6ch.rWPS4fyXw1ROWrn0IBNMKoBuyfcIW_Sc5SCFf1oW3.RRcEmC8tV7qd7J9ZTQ1Af0Z4VDLYMQ8hJlutlJKLRpWYYEBzaLB3YTQWZNcwDWKxEhhQ_M1ad201N7l9FUrkE5q44o5pCAWAzrWw7cMVWrWMWrd4AFKIHRiPuM6hDMX.GWiuhWZodzCoAcLrvBztsAoOyOLL.S9BMbC0pNsuCVrzzAYsj5HyzN6G_0i48fE0M9qWgnMtkj6zNzfF_yJJfVlW256fFGN3cS1wz05xs.it6wTm642DCVVJNH8rPqsaw9lXCUWla70EqxBIn25gRaaRZlzOFHE0vqvBS0uxTOnWVvxpvd9SwIJccuidYU9dop7UZFWsfS1XEhK5B4PedRDUj2R9proJcZ7z3.NVZPYYnJ2ixJ1LJb0wlxV4rg2gMbANH.N1X_mYoRi0lSZH8B7mwTvFRc3h7nrPLJYzLNwbQ29ct36y1Loo2PuEsFYCntWLOk_BYDJO5CbWTFsUlXIxvEuqdbzq9z3k944ul9vWGYh5e1qD1N6zeiKxAt1Jkvj16_YA1RBgxGuBoyNJAfoEPK94Jp1yXXC0sNxMKJMdnVG4l.AsC3vkXaMwUXkigHrP19m3gBJkKaZ0LdXF.TMRhoUMk4MLaralWEvbIb3pG8CYCYkkcvX_AUHZQjl6WVQNo6CaOykX3vYoZY1cRJJCAWWQQ5o8nn4OIWWZub950I2wiJJsjHEsCRjLFScxxxF.rwqmsCtCcg0_8GAB3rMskIeNTUCPdtEhghFk8GSAHJ.SR1SsQDWHvTwGJzyE9Miczv2ZMhWZziU8Sw51b.3Bkq86v0ifVjQM7SAMLMjTYCTR_keQIH13akPBcJC64.RTzSVouc86SVGkZEHfBLjoRM8VETXV5Gf.zZiwUYcwvjvecBus9QXTJti_IaTX.pWkeQa6DJqbVTWSbRqfeUeW4IcqQS_FHkmNKW3A"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f70f4e78bfd63c';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\/2805631974?__cf_chl_rt_tk=UjRFY9EEXBlN1QVirnWeLcH3xoTelENXY5_C9Jvm0Us-1739137666-1.0.1.1-J3eOqjCiulIIICok_0b.fcfYwDW0beg0gPr4wuFfppg" + 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