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://mit-edu-7415093826-gov.caltech-edu.pp.ua/post/7415093826

  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: "mit-edu-7415093826-gov.caltech-edu.pp.ua",cType: 'managed',cRay: '9100c7d8a911c981',cH: 'qGXggYXCxWkw1ThtWDvRLN9bn2OxwT8Qu.jzXltPF7g-1739239596-1.2.1.1-usbBVvxQQv52sYwd9xS__bsXS9rwZjdN6qpEtJWjHjF8TssP5SzRy7mMV8FDDwoj',cUPMDTk: "\/post\/7415093826?__cf_chl_tk=2r.VPlZ13Ny.esPU5NJs7h5H0qQuW1Pboz_20f5jLY4-1739239596-1.0.1.1-OWzqootXsl.ilvsUuPt9o22YNpMJaDJ6h2FTEIyJ6Fc",cFPWv: 'g',cITimeS: '1739239596',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7415093826?__cf_chl_f_tk=2r.VPlZ13Ny.esPU5NJs7h5H0qQuW1Pboz_20f5jLY4-1739239596-1.0.1.1-OWzqootXsl.ilvsUuPt9o22YNpMJaDJ6h2FTEIyJ6Fc",md: "u1FDH60uK4JM_mBa9JYaktdxz03NNVLrC5ZKCCGmpyU-1739239596-1.2.1.1-2MYUNgBVziz9jYdeaubsHewEWWgdncVdsuPQxhRxbzk9Eq4RE1DPmugVYnnwerk2pxXDCGSKIHXslB8X.O519.LmJqIHrI18zqSvRT1r62YSw9NsW5IjLBNDKZvWN5kmaiwRRkmbEsrmdpYB8_niuvjsWfLkMS6CUFIxBNHow8i5PcMYstE_ypvV61QVZ65R8tMIi3YJ797nDw93ymAsdHGbWsb4bttxKmuB0jDh.KPbFsEjrp8_G4_p2wUg07.HhS52zWOg0L.ZcDRr__XantEXjh9aLiGE3fkEq1769blquKiTwmEn9_QQsM.MBuNiksnzO9oao7pviiZyLsH.ppGrgqacXVEvfhtcU7K7SEpRe_Se4_EXBhB3IEzXVFwE5fYxCdLFUqsr3m8GPL3viwGrnC2zT7Wm30HwBqVP7SoFSXwgvkgHU6kH97Ii5Gk4rvackbBXB4zxsJGTnlTyij.je9Cy.Ye8LgpvUwOsI69lWyhZhopc.6rZkwK2YSLTDkpCSbmSTt6wLxqAO3m1leGo35N4LwU6hIwwYL65d5.RCFwjHBiDBneUX3wY0TbMIIIvvJeIETti6X2w9f6C851Ija86K1ldU.EEueTVmgXPtXYWir3PE8UAXVpWxTsAUSWDGqpT7HAlE7_gBjkQpI.C9SKFPh_Dx_7ugUj0cbGcsmDQVF.XbEojZxKrtckSAvh8OQTPRJyFFTxLzaMzNTGrmZ0JGMoYEco.QP6LNpSO1XK0SPlLIb.y26sz5l59HfwAxojjKm6j8Ie0uplaZiojdWM2UhA.OEEUEUa2AJRMk3By9NwDoHz2_DNfTjazLgUAOafRBot2V5MP9aVque4IBxsdzaZal6KPI5UHM3GClU_oTcD_8ntDMXJRz220Ct6CVnT7XsAIWK1yyO1ua7jyBhEfh4Ocx6NaP1Jc1Mk6mJ_U6P_4VaiQawqeXJhFFqYKjR1etvY5D6eEoTNcWWwPzSduXToKswaSHWCYUOAv3hiLdbX1i4wKN_9se24Vi7QGW4210w7N4VhFSizjpcbA.KXf_SVxyibNorCYiXCx5PCgZum.h5G19DW220tIJA4nXRCkCuZmYA9Lr28yzm.8BGBMBIhdHjFNxQ0Y1zoB7EvX2ifX.I6OatR070Mq.TzMCJvPTAz165Ahqn4STLmbpySj8xDMk1OFA_UWQcab9RTVgM1oL4G8uOHLMhq5RPfxHgL_X_92eY5nqxcKZVCcH8E3Q6dgJWqf2TMlR5UfTVFxnrq_eK4X0.trj.pbTvOHk.s9s3mvNkgzh5cGHQ.hYyvEWNZaRi9nGhbw28_RIeUg_YuajdyF8jv6WHN3ziOH.LbnjWZ61SCW5Z._3zKLo8OXxe0xXZaUpO4KwbTbeQvXvatbFViMxUei._Eyvj9kcJmEsnZs7TE6.StZuZfnwo3b7DAQEjK8Bv2aPUCmYHp7O8cvKjUJdZ9dagf7pnVYl_AUTvNKyj0_MIKpN999ZEkFIZuUc8RDq.HTCEAN.pqb7St.Z5cM3TOunwUTjdwsOrBOHXHEu30P9LoKHHeJ4P7jdnCnXHRFT8JSW5mQr.e4CahFJS3hAO70dmA1udsAi8oA0_x.kgu67RYNHyeQRmUNAwUPHMDQRFlFrhqw6It57aJI2UFQJJ.CJ.BV4tcC2vlsgq.dYM0U2lhQO3EBdO4ZHtQyKnLf05AGiX9.Tvoquhp.mGrE9DoZSYyjbppsnh2RVS.0krvCai1NviOJGZdstKL17kNFrybwbIGDHgxx.Tqru9fQtIUuswxwA.l.3QLqq19Siq5DAw4w1G8rb9eVGWIVXdioo7n5V.AcgQCqSec5J8eBw95572M7VljPp2BygRYh7FsmMsIrAdZFdVyoiHLFfBGi3WZFrPkQb1BvyNqKCWmQCu6HVcM6.2uRxUbXizFet5vb2AE4.BBvRGdGHtOioGLOSi2q1TG5kxcdIb.ULgdeW0a3prGMijMNtkcLX2lsVO5GEFXWk2EFD7ODoetluCYDE_b96vZmOVRF3lP4MKtbMvwp67p4.4iWpdpdMk3BsW8EM56kh0qSPgTV.ii9LX5aga0Cu3w_J4TPXRWAFUtcjup0sIWnLox2ZmWZNzKqbONj01AoXKAn4IWGn4wGL3stBZ1cqyd9sM2x6PRo0M2tPf68j6oqcHvGdUwZx7OCgAL2AGdz__hDVMHabscOiSbqrKTihuMN28I1ydcvBnEEg.DpPx5Jy.wLKTVZ5ACzdMmK.fwNhw",mdrd: "8fpp4vvmFwulvuxnfqeONwcAJbgwSrJovIW12nL9AGY-1739239596-1.2.1.1-OI7V9FMJcjxNYo60_9M4Y6wF0hEdTJPK_zeDxKZPsXVWjyqhcY.vMXbu0CpxbpmCKPNc7mpgJk_KKizHsh1f0FItkKn8UziS0zdoYK14XXX3GFbBBTEnmE3OSuaylgsIluB8zXsJrYt00pwspjuuCNXkiZJPH.ipdU3l70uCY1hE1LBT_XuPo61nVrY3beZOFZpPHjFdzeIHEOwcQTkFQMyBjT1zSzDOEtpMCFSwb58kEN0GllShuf.t11QhJ1t1.1TLDAd_1xjlfVdeEbZys67x9aR7nsNX44OKXZJMdEIEqMNiiV9rhZ_NMEJJt.CHXD7.cEDM68..07Rede6dUYU8UMSi.p.wzFacsjaQNFy03h4Ra52MeX6FuX9gJfqypmwGZPGf7BxAO3SkEW1kSQ6CAZh2YjDWuoAP1_3A9Hjky9CC3mklm3Mnan4mZYILyvGrtMGejj_MUuIa3k8.u9He9X9w7RdCY95q64NsmuAIIHVk802lPOmCFMoFU_WUnBRDYwc_GxAIpx5zabq0alI5luS2CJfhDG0Fmi8xvS6A5Iwja3qXM6Xqg1A6tq7PKU.DZpzmkWjScnNScYMkFN8hEbIo1i6alQLCVlzDT4YeJgrXrrAY9PwYxEbZBZMMXKTQ3HnsO0aZ_.IAB4BGBb5S9BA9byen44gtLuYbv_7vXLwn7EWEsXhXT9wWrO0f.9t3Pn7xaEEov67vzDD4zewnlsPqcx7tRhCKbwzCrbwNg17xB9jiWtcb9EAUqHxhP1Ga_V52Pp8FOtw3YQLUutX5.78i5feVySLiA7r7Wj50YEVuf62TfLbfcGn4PpJTfaWhV3nesGKI4wyEIl8rtychZP3LcCKz1DOK4GC1bt_r0jOK2KH2rSAWvv2kqhNG4B3ilC.Uz4eyXf7sEOz6NhzuwHerS_VT4Q8KSf.AgPXAJaS8FeUYyNHa8ipRfxpLaHhPq98ubUvenf_LiEaSXmHk7pyNjibtygw16Tiwmg1IZWWv0112rs2WY_3K2yh7cdt1pzbQoavWR1s7X9jPx3utcSDbOJmKGGNKyE_BzbSbYyD4cDLcATJYOfW4m7fccO2QotUd4ZWGCnJAz1FDJ82Gf0sctphNXqjkmJG.LGOAciCeX1K4V.bvvyVI5M.yjIvk120VLusoIh8GCsFu2PP14jYs5vJ0OI_B8qOBaBdbvWlGavfZvv4aYbXXQGSY5o9tcCMth09mOc7vh3aUuicsBqDzwhWV7dDm0fnmkWCr68yGd5mnJWwOF_ObpqlnlX0mN7TXGvrLLiZYXCXUyRbPaxRem9Sxup92tcUkGwR5UTrYWyJtiK17HHM5jZ47OMzysCa2ASCJAxJI5PSX2bw8zbvsLJ9KPEePMikHTCBIg3JCG0735PgTc2ZAN6T1Nbc.u7MUaQVUXcm8q2lynkv0paiCaqhQAUgg0CuFnNAcucxgE0mzyXP5zkErWrtIoVhyfTQitUsHvphbgsxq_mraw3VlACHypcmw9eYuyCXKGAKS7hmQQtIMEMEHj_Qbmpqi7INoFiNAhF79xaHLyvl4cvXjZCCp1bTtTqQm7dsJ3rSOCkI.E3jPTJwt0VORuYjhgBfgL.mzS4QhSzF_yNF40YLT6F._jCFuGVgxu7ZV7NshIPV2uNTLilELNV5GycLQ.4x9xEcHZ8q2GkCXJ7gmlkbv8D8z4Rn_yFByKlEuTkbtKtT23f_SQatcFDPEh2h5aQHnN_2NAKciARGVgMHA2qCCtSK5ZIpoamlMGa5z3kS0WDb7OYvYGl7fNnB1Xb2BgLpi7uk78TO8edNWWw6Gb9lXJcJw0xSK3SIX8o25R0I6pey9KWB5_ko9ebi9"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=9100c7d8a911c981';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\/7415093826?__cf_chl_rt_tk=2r.VPlZ13Ny.esPU5NJs7h5H0qQuW1Pboz_20f5jLY4-1739239596-1.0.1.1-OWzqootXsl.ilvsUuPt9o22YNpMJaDJ6h2FTEIyJ6Fc" + 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