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://587521.mit-edu.top/post/9135786204

  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: "587521.mit-edu.top",cType: 'managed',cRay: '90f7d03a2c07d703',cH: 'NPr8dgsDT0EQ_duww5Q5zr1QfQpgkQBBVNZMn.gr9WQ-1739145568-1.2.1.1-FLm9m4qhxSafKCc2Co3q8k5c6N82KF3xQOIlbrPZEIpuaqF5iQaEE1VNplAefO83',cUPMDTk: "\/post\/9135786204?__cf_chl_tk=y_cokdqfKYlHvlslqGV0bxZjscEJKfcxCDc4bwnxck4-1739145568-1.0.1.1-sZSh.2KlxrV_7BkM1obKrf6ae3EwS3wBFlWgtj7eGcw",cFPWv: 'g',cITimeS: '1739145568',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/9135786204?__cf_chl_f_tk=y_cokdqfKYlHvlslqGV0bxZjscEJKfcxCDc4bwnxck4-1739145568-1.0.1.1-sZSh.2KlxrV_7BkM1obKrf6ae3EwS3wBFlWgtj7eGcw",md: "CHVGIqYW_giH2KaHovQ87QE9gS.DtYeQAptON8uCZ_k-1739145568-1.2.1.1-tht6cD6lB44dpTVNP_EycQ3Wsvypl.u.DK32NNrZiIyx4EORj2S1Ld4dxRhlshjtEGpLA66eDhMCJl5TvrzJfhwFOG4UCheFohgXOGh9sLa_V7nmKqKE5x5jvfEIKH5rRK8CudAW6pqiu2EC0F1hzVjT6GfOvfTr9r8I9bYEHd0vFyUSRPNAlpTdl1g3bEZSHTYPkt5rHVZrgeDE0gN9EtiQbCAOCe0sBwQnt81Y45Xi7R21MRLxd5nuXhT6..PsgV5Tysv0vHqgdt3KjAFPLmWg_B8R7wKBcsEs8Sp8Eg60EKdMCqpoIFlnCvm7QrMzOb2YMmbvS7SisD4suM1WIDIDIBYEDlKCB8LvsX2i7_aV7fFsdlhSGh.xS5h5YHgY3eEOzvjbgkSHPnFHC9NtnnCc7bOsPd05dLOuNrYaojPoNoRwSSVu0HdpGW1bVczNcXp_FBw5SGZRWvTF3x6kzOtUkWmbtTBXS2OmT8ZWV_0jc.ZlXRdrVkazcoaJvmePCDh7e2ylmr6LFYynTOucjbQKH42z__bHx0jvjQ7q5fYCDwUjFxd_sDqeY5NCkIURGKQbucX1_XVlxc2lYhPDUGjIt6j5PPx5Lx6UF29fVxEuaf.67Zc4YLfHXupS_J900qfNxmGXLH2ZzLPTjqYSClxaFGNtw93ub6vEb.VEgeCk6Gt008.VmcJ1a0Sjy4gK5vXOceQ1qgLcMHF3A.GW4ZfeRokXF5eQ_6mjdYUmxL9hHiQ5eAayD0q2vfO46e_sOGD8sK0j.czMIKhNb_P.tjR826U0D8gzuH1daHs3uFwO0Q6imsKIXebTEHmBxNXspIcQP0pZu0EBJdJFIbyuMI3mNTeV0idUXHprHAYsYWJ5GLvFAbTWMlqd_JcuA357iodT4BstGlOQ8_L1LB5zbomRhaNzn5vbLXm3WMeuzjIPl_8m7ChEoKU14q._3Avmu30heFmUujAcEdxEA2bVM_C795211Psa_IeH1f5tzomJcpPtgomsFYRdb61n7Wuo651vSGAMcA5EhuQ5HQatxoY_Rk1OdKllRAhwFUMtFpHAzpN2uPsLMDF1kjwmcIRGLwtNvQLvmQP53.uT7af9rylA0ClC88KqqLrYEYxN5iJn0M.IioblQcKOCroOP8fpriuOX5bUqZtGnzCvHx8GcvWboH42u6ouI91n.ozKg_Ci32td4fphKy56.7I50r1fuG33rrSgRcsqPxPjFV9fI1wbDMDDpSaz3cz.qPcPOyUhOyRmGhEXHU8.EK9URR6wUZar.GoU_0JMR35C0YuCTxMQuJj5J7gB7wiRdYSwuXe_DKebqqOW.3byvwfsee_1cGpiEkUARhNidcM11.yRmnD5ePD9SzFxH6YMAet0EdHDXDZli4JpSDWPbJAtyeMy2jhjWNi16e3u5ITYOcHsjM7JIZRs0Kuiow7sMO6iCFKavr5RwaJKIzl6303kNHbQzlNXJNuKNoeluGhzcou9GH8DN8rMeGivq_UIO_nYOg5WrzQzhG7Nw6hMOr_rSS4roLwtPNQ6KfJGNni3YUXNh9Al9NTchjNxQo5JWxfKi3_H3ZhzN9CYWvmoRzY7eFMcuFuSvrgeMLnEiENFAe7tWxtCqlp6OUONkyXgn.rqZw4QvO9.BhN0CoJFbNW1urm5MwHFeE71EK5L1mLHBj9YkKbVkbp43giSgre4n8GcbrbWwL3p8hJ3BiSc5lowJJSo5jeb0hdu_gMj19Ldklhw_uW1VNGyWSnKyz5Dg_gy_yLBg4pVw7H2j1btI5aybbr9eSGT60W4ViBtBovPxKCsiS_7wnlwlOqCBb.SYt1tVyDQGcW6M6k5DIdpGT_QgZvd1IrsHSIQ0Abr.v9R_97.FmRLwTh7Tz_64_Ay3Ky0TLCLHWugck.u.0Wa51VPraTeaMc3T5DEbN7d2sFpKIRsVw3x4V0P7wri109B8zCLMVXoEGCybuyTg7ZKTNjbNa9hzFrZKmskZLza6pbMXgmMJWRxA0.JzEKGrtGIzA4l4iLAFxvDZlIiJIXH6cdZNarYePMqCXzrZdLUYPRUuCybxrvZENGAVkZgE.1KgP1CXn3SEQAUXOgqYis.WPnqjQBrPcxk86tcLjooahVw35F3JWsxRVVHkuRAi5n55DxJklyTRuujbHBQj2cpSwNwTLoziHv5cUlXnuElVDW9DBeczGnKkquK1vl2n19WXOqOEnY",mdrd: "ljZw.I2FylZ2LyYfT1SPmb_o.gqkJcKYGM2JVYUOtIE-1739145568-1.2.1.1-dRrXJIX5xsGSOkyMnROVaGHE2rVdiU_T2xvfOBTpT5rnB68YSHsIJFW7kADzDVOPJ7f5AXoxh87qVSzvDDfuvT.4xMKs7ZMdtaKMSF13bWRJk2a0byvkUaR2MREtQXTcSN.g.epx43QAtXvKmv9J_HgSqpSiDw1xqot25WeBjctDTAnwy5EFnU4VoL27WpXbRNEVytU7YwnK1gh2XhRl82fx7RyAlavV59xcr8tfHedF_Etc3RREW1G9zafClDv9snMGhaclZlpuR6imkMO4a2NrarioKFLF9cLzy8J7v52RB9ZaonFcFjzytZ8p4NG8SPCqPrMSLEE8DB6uG36HCnou4A2mUMOumcHf8vueToncO.oCjoFQV76xbCpK4vsJrGmUdVtV8nJn6an1rj21ik.nibdUDcIc0dm9DIDME6aw.zRacM1EqESbXAb_Jpa8UDW5WRfW2U93ergLokjGm_fcZZ.96tsEA3oW6IGEHHaZ1n8Vek5wVlor_GBRRkVteUNtT9yUBKk8qDwAp3eDwGrCN1KDhA2VZ7XAJ_AspCL0Pe7rsdbz92EO0ODHeYWkIZgBY6WNRFXwiNbq8DlYn8cywwh0lJiwL7fNOjOVxJ6bW16zopOafucCmf6EaWo_5ZiF99vITNgTZPX46TDp7SpdQq6VU9wwe0WWcZcsks7K7tNmhq9yiOABWnPbUH87Tq2toALPcRuqacmRS1Tr1SnIW61En49C7ijgqXjPPcHetL7jNXFD7wg13uq_alLD.n7iQYYESUnA8pwd2XtSBq6c3cvbUZCgUKFNrVPfFD1NdE0lgj18uE9igipKMVaKn7vXpKzdxbyezT1OxlNTbanl1AYm4tjyDzSFsVA2g6wSwlun_b3D4wRX.6sjb4SIVAg4nPhQ2NKVL4WxKzs9POOItrjtCvOpGnecC01fz4GZWS8fHlVTGRV2w1q835lV7aJ.rRbJ1Lg4AUTnLAzf6Zi6.z3LVRz7FIyRaE.x6kDYs_.Iefxs7ImzRzmIbVS5VNcsOKl0rLFX2QVW1.HHLNlgysqh9eEIxi0CeXERzVt8s2jewZmXZ4P3ip_nUQz.oQvJicV4bzYBxUm9uzo167bBNsjMk3hb1vkQurpxjbNnBO8wTNw62.x9hAN7Exnmh83UWrRSjsEKTIzAb.etmfzbpA9L5nlBOGcgnVBN7zoaSUFTbs062IidM3Uko8epGdo4LEPoMOi33prZbMNPusikVJnGp2zLrVAZa1Oq7H.LisnmjAqS5V2fuYQ6PCBlK78M5UyeXXidM3npn33pFQMhHQZ.HcfaugT2SSO8WznNw1P3lvZb0RXJnNoIIyk4uO3K_qgrHX6RIY7fCqAfKAw06J1WVjTqygikx.4XNjGjQk7x1vxyHrLK3EW4HnQHMhPAFiQr41dp5l2xj0xtaWiTKZ2HGpL46vPTWBOnV1.47wXeTvVP5toRlvEagf6fgyci_ErWVbnFPlBlva1Q0P5KUXEHZj1nWzfSnBw.3aG6Fmi07jCEZG9I3aFNB6uTCJBxc8qzEKdmm2cd7Vjlz.SSsyHdJXPAkOkgTh1lUPw968l2HpR_x0bexx11a0HrNimTy6rtRHv4FZb1bUAa8B3uShaM.oTzEfMbEEuBrertQycvLYmr3tt2nNgFQx5a9VjIgPSkCcjgsw420jxcED882KFT6YNCfIsYItbRQmvrnbWHX66igtO9PtGKzXdC0JO5BXhcsrQlwEACEFkybFLMetM0wEnhUA1XfQUtTJUvqYHB0J31478K2IV6Uh_r"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f7d03a2c07d703';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\/9135786204?__cf_chl_rt_tk=y_cokdqfKYlHvlslqGV0bxZjscEJKfcxCDc4bwnxck4-1739145568-1.0.1.1-sZSh.2KlxrV_7BkM1obKrf6ae3EwS3wBFlWgtj7eGcw" + 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