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-171421505697.mit-edu.top/post/0621389745

  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-171421505697.mit-edu.top",cType: 'managed',cRay: '90f233f9ab03d670',cH: '195OoPblIT6qpG9bA3U4rzcgutKOcBC2jFpGUUnm0Yg-1739086739-1.2.1.1-W4XbttLR4L6Q_uhpoo.0DePK_d8XEEDAQjWYbkQGhRMaPNX.mSAzCxPzKZCGrWIg',cUPMDTk: "\/post\/0621389745?__cf_chl_tk=HcgdjGSCnPbooRukKrK6rXWER2G7tjZAsWoYqtlCDs0-1739086739-1.0.1.1-x61Ex.p9SikBt7COFG.sdOOzzccU9DDX4PrjWKsWVR8",cFPWv: 'g',cITimeS: '1739086739',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0621389745?__cf_chl_f_tk=HcgdjGSCnPbooRukKrK6rXWER2G7tjZAsWoYqtlCDs0-1739086739-1.0.1.1-x61Ex.p9SikBt7COFG.sdOOzzccU9DDX4PrjWKsWVR8",md: "1p8cFlftlOWNH7Uh1D0xgMCv9xOIezY2z.GQZFnVqQI-1739086739-1.2.1.1-ii6kDQhyRFxcJk2oY4YHLfwpcKnk4m.g1YZ3jFeX_kZ.OF95xGxl41LErRnJgGvj5wLAQRLG.bbm5Ie8URuo.D_4WNTbAjQXv_AkCaeUjTlM0IhJ1WuV3kaLFrtEOo.ZqherIPhPh7Q4oWnVY7FcrlQCY11MarJr4b6YsxAgaaRgZ76LyQEFnatgxwh92ULwQPYbl9Gyt3WnXWNqHWnYz4nQi8Gb5rGIS6jHw.LNjhW2L4aaW1aY6Wh9YL9.VTWD7PujPjFCSGeDfmQdQrRgtZ8q4mPBtb8S8LWPnNr7GB4HzTxlGW.rQck14KKF6s4S1UJfQ.BeKXzhLtiFY62lmVQmcVp2W9lhZry20jEbo9cOySkz5TPzbPSfNOvnddEkWDZuyRZTHnp2P5_L6UA5xEMNir0fb6fSEGUBeQPwo..QD5MXuUktydvrGa2KgJNwNnxOYAPRZquucj9DluKFpzw_w.8K9LR6Y8QqbT9pDWmTxXSML9erpH6GCClpVP42r5NRiZJz3KAXDUEgzDyKg9Rwb9DZYJUW5UjF8lZCif35fV4maDbDdZppAuiwslB2A5_.0mP3s6fMC_GIs9UZH99wFMtA5eX1WavA9CoEPPeMoCARfxvTcmgVABbYowU3KVqhQST_Oq47L0tecs2pqsVkkOlUFWHyocAW0P0gFGEYRZGqkM_2IQdDS2rBhP_XL20bUqwqa8IAhVjKdk8vr4uNCp.k13EYbU9XMhrIceAMbNtYs_VcD2jlisCAqSMLrM3BgeBYNOeH3LaV95yUQovPof3yQgSfa2bJZW3qptCfqMnNFx85arm0.GuFDzy3RbKjc2S_JFQBG9QdDecO0gpCn0agLJ8VLjIs9tY2aPFKkd19IZY5lRGINwUBgyHqL095mkqCmo5Dv1Qy0dGO8.mOKHn5f6o5.uFemvffS.zBW48wKhiX5mPA_O.CZVEL0MJASF4BEiovm1x8VCIQeg9HSBrkZ.qfb6t9V8CoFiGIIjx5afqNqyBmpkiP2NmQSsVPsZqPU6_ZbMuqWL7VtWLAzllveh7WJ0JvvFT3xpnNB.m._f8feVkiYJTjK4zInU4d.CC_7jdT_k01qBOa_aE5pXePO1qqkfdKlS6_N712ehtjRo.QvrQggzsB2ghh0kzkQ8RRZUvW1SAAPc9ru.o0bPIH07WKImzrh2zJCmKvxdq6fHdB18hnn94C9eZcxDeL1r08bRk4.kv9OFcuyJKIU9bcUfqNwPGhn1ZTDdGQvQFLQDdo13C8iQrORqdLaxZSa22Lase_Jz7P6PRAyscXfyZ6YKKgMnJHjli1twxDMDKbX4u8alZRcXsVgAxiqng8Gh8k5J8Gh.647.EDxKu5fZhUhTWYxDgN3CaIYMBUkgdn_5uKyu.mqmScWOyWFgEM2aBIK5MnMdVqORlQIPLf4tXm6L2I.Tua5feSaItTflOk_H4tEuGoFcwuRB.r0rNnN1mtCJYZZ5bWagYy0PJLrMFt7Oj0hd6z6tBNyvTC_mGx7n.d.GLQbyYaUvf9Pj5dAmlYY8e2pf21B6teI_s9YCjWj_Ty.pIj2ZzzDXPtyn1AS_iwVrxIZVWDOiFOyJfginfEFzPH55VYWitYNhfchCgofYgo7AyRAyfPLFaSCgLJjA6j_JsUDclfyq4haWg3woyrJ8wrSCV1SY_c0iU8.X.XtopkD16R59P4C9Fx2QrBBEw1930l_TlWVJOL7AXt53FZDBVMShuhOrrbtVrDMgXqnP6cssQ3.124lQcg0OLpokxzwaGn9GPgnsUCH2xQMc4UGW5b3Gxc2SHe08ILNU_MzdOB.1oPuA6LikAp7BhgSbrncSjxh5CD6.KPr6e2cbqLBnS0puebLz6Y7kMpHXnq8xftzi9uUa8S2XHZ3Wq9r3COAS1Nn3eG8XMQqG8dwxr04szj54nGXdpnB.Gaf3_BKQbb8aPASr6Os.O2huVCnwmuuT5f477.2TRWtkxUD07HPxC5EzdQgAv7_2axTNK3ZBenS9aQLY3d_BI10nc3_z2NfVaYtRjNrk8QbPpbDRHFgKwNJu7Errp4W24kJYHFIjXS1cYFdUEDqLK83Gonqal6510xzqZiuLcNFo7.o.Lzt3qjd2W4ZGVfFKhzzxo0yIJbhDwGbUYUBOUcFxZi.3fYD1D4r5lDghyaqzJp.fIPgV4EY1mGffwQGUPmlNzo3H4dFaypIqyHVHrcZ3VYfzUSm777RuM2Cya_",mdrd: "84E9d413SQu9K7fb8zo42WRJC7dhl0ojTMcyQZLB4TA-1739086739-1.2.1.1-WAzzB6zucrtwV1.Hvcfb6AAPf1R5NHIDBqb6MR14ih.bAy9jdL7lH8soky4MhKj6oDMBTbrQwegq6p2RXfFUdKhu5j_8hEoZG9Ak1YXG8O4vKAdRByi5GpTYKZkBJLKGh9n7SfwlLBBPiGarw.h5yXm3dOgp8cquUE5MWCD9UFcH1gnFwce4uXd2jor_hBZL1cIQmEHlE2_KTcKScFo8CDYG.2zfm01_c93WAwCBYAm0m0L2qZiG5AzlZbkAxGV8ABalsSwXSCFoEzU_WS.wkhcWABn1iOeanRLwH3_ydsA7JTyk6_9j7iwJdASvZj9r9gE4q6zLweirpNdvubSdMiHjJWMXqsdz0qzhnyW8qGxtqymdu_xX7vaxITZPxHV6SJMG.wXznna_1.k_gs1BcBmwUw.HRAPfksOp7rlv5iSJAV4KvJqsg6hxPq8GEwj7_C1rtF2irY_BwDnzRC6uXTihL3dWfTc.yVyYtdecB68T1qukVLvTYHPpNWj9mbG_rHEbBOpEW2kx2YUdDrQf5z81J4LvgVsZA2Zkqqdb6NjHDyimJPHjxyxiuPZuWRLKvEQ0coZ_coIuoLutSf.h0eL9vM.fW8blZaNJ1hgwX30mHgx70D2CneR_O8ct4w0bPBXqK9vI4vcj75bQiDpa0FNSthebYPDT_t6lPjBYxQKJ6U1M4Osr3.h34iY.YyuL6MkfrBSHuJxvTYhPnXMH3hzvgMLJn8q_SiNtO13C_wNY3VByWkTOqMQkxSFXluvCiUJCC7AsFsfh1_SCVyGXEPWXrVFq1Vf2gnhpEo2p.3czwGZIOTJl.CsP1oAm.gLCQUMISZRQ7Ur6L8P1lXhRHyqRoj9mvPDNh8Jl9YHgK7XFuIe3uPIljL7Qg4CwJm_psEoXj5vSa3dyBj5L9dJTlLGDDPoTg4kVXx9xIxAUMfSELY26hi.0V9sx1dsD.C9bsIOXD3tjrVAcAkojc6ofAyPJk6zIY2rly0byEs3ZmiVf4XpYubyj.pAZ6_phL2MJy05RLAHWxXw3tDv4QjTwY8K6FEmztM4uLfFCygt3ot5BWg1u2LsMVkhMP5zuaLjYmPdTE5V2t8wqrz_o_nE7HM2y3Ev3jr.m.tuSLwxInIX4p_mnr9JwunZRe9_byUZBFSsi__eEOcbkMQ4dWeSagJogkb02FNEglGShOtJPrCEKaOWf5ZywpoOeAqM9GRN_o.5z6P9l6i5mixCGg1ds3YZiX2JCQpzibqf3BXPwXgUz_r.xa2N9SrZOQQwy7KHhI8z9V35PHcdWnI8pMK8bNBdMrq2xPpbb41newTErYGXMrDvrMiazR.LqlJzzIfU2utzD9LcEc6.9utmLOocylmMwpNkgymgvYp4PsEZn8BLvff_GJ1_hRz2zKPQmt7f8kwrCOItDfOAZM_GIcY9v9Q1i3EPPaY.hSARnkY4ufEVDDfs42xd7nbLtZITZcctVAjPyymwz1iaS4uFANrhgYopqaDosDKSzyyMPbaT__hwKx95Ec1RLY_z3wDN5iXuY3LMTL2SNr0twffczPQzN.Swbyjf.NQSKggcNoygFao1l5PbWIpVB9rvnVFib4hfVcftQIQzCuzP6rNlsz7inmOhgOPvSRBmjaG9KeH0aIXFRer3qGWAZzeIuVPqRwdfXvN0dSCTgx_1q_SPh10S9o2U29lk0AsMUlif_VliuF_KAIHoAPef3gUJrr_49_ve4pOtcFvD59clw256k3HbR3kzt_qvPpN.JzN403.FRGgNT.TiB5DIfIcU3q_XkxBthvRdrGFDZnpeGpfaxrooMfA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f233f9ab03d670';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\/0621389745?__cf_chl_rt_tk=HcgdjGSCnPbooRukKrK6rXWER2G7tjZAsWoYqtlCDs0-1739086739-1.0.1.1-x61Ex.p9SikBt7COFG.sdOOzzccU9DDX4PrjWKsWVR8" + 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