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://681681.mit-edu.top/post/8452931607

  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: "681681.mit-edu.top",cType: 'managed',cRay: '90fad8117e640830',cH: 'oaXs4j6SLBP7Bd00MX68icfG6jQu5MFj0ROF_Q7hJAk-1739177346-1.2.1.1-po_c23uYesvwEGGGJ87kohHBBUufkZeeQ3oBLUG2kuwmn7XdYMGnGju9Im4eXqUr',cUPMDTk: "\/post\/8452931607?__cf_chl_tk=sayLsWayhc23vpvS6fMg4UfRuehnx0BDeaQQyWUZUTI-1739177346-1.0.1.1-0wIOiNQWLVwixSZ0x4dYNeJc4vzOxV0PeksFMgOys5Q",cFPWv: 'g',cITimeS: '1739177346',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/8452931607?__cf_chl_f_tk=sayLsWayhc23vpvS6fMg4UfRuehnx0BDeaQQyWUZUTI-1739177346-1.0.1.1-0wIOiNQWLVwixSZ0x4dYNeJc4vzOxV0PeksFMgOys5Q",md: "o9PWYWd_ml.d6XZaUfj5bHb1T0bk_BSWf89EMoBfnQY-1739177346-1.2.1.1-2Bs7x56U7Xd63mDuiYpV8LWgCq_uiCmK3xfrLfQFF2lw3JRMgg.k8gMcyhJgrXHX.DHqelAlLuzH2eCKMPX2TXLLDXfOHAc1QTvjhHIF0yNNT.ZQ0s9V9hYQ5t5VnLNXbhFZkX1vWLuzP5_8NYPScRnHYnQ5488hOWK1TdIs.bsoN0aRsmlAXs_jVxjaBz9cyab_DhrjmhlkmioWczCOMGnI7IPjNLCdaMhqlzoa0lPv2YKgH97nLsMNKjo_ybNksZOcgDjcSPma24gYbbcbprAROZSBDSQVFWVH8UNprtAaQqQxG7us9qmfegU.oaiEdJOajgbLmY6hUEf_4.D6CDyzrn8SSQ4HI5n7yXW2OFklb4Dl5QYoZXbM3CzQ9TPk15MIxUKjtWSxjmJyLilkHSyNT8ayiwYvoGFoBudPi9jY8abCnnZa.U9H5SEIWRr_..lI_SRcU7PxlohZQP5oPAUQPcV2vZOinZCjLtyDqZt61O2_KbwAAG77IGCVvveosQ9nV7eO2ePBKkRjpI83BtFVHFGsqG2W7ZY8jtRIOeYvIFwiFtX643_lpzHgdp_c1vyfIXh13gAWW8jqk0Z4jhYU38zjkODc4PedHs7ioMoizpbOkrSgIyJGDUMTWKjA8I09ir0PZMuXagf8vDhW19o6vIs6doEJiwm77hU7y6sjh4ULVq0kccawHXrnc7c5ZqVOEOU8Frmo18f1zg8fGW7PjOQmJ7gS.zymEaHu4ua8LnYrjd5F5MeWQM.bh7rPeo9J8UuwxHez4U3kXFnB81QpNQkg2taBDCCRBqYcpKwu5YiSU6JsOBucARTFwP32atoGbgGtVrSw1R5fG5RdU0G_oKVKRPOWnSk7r4TMqVV0_m6Zy8NaZx75sQghSE5y7b.1jwiyyb43DAMN9gPHOxfa1WnPD7uYk7hAq4XBIf4xMW4n2B8geqXb40xMu0P2pfyPOPkl1pyQrdO9zew3HriWOEXUMg.heahbdkMNZrFPdCpRODW8Rzczwoj3pThNRx.CE0PbBTeF1vmXRPPC9mcpo18j6ZFs41bIdqnbYoGaI4WbT4O_LQbHs6vKm_jesPsONBzZz7T1dKBLfn3bIRx.5bsQ_9gyQlPhhUrOtJcAtbkYUah.n7O5MDuJb8Fjt3QwTGO8Wzxnz7GJaewhbfzt3xAhON2zzeWeobLrZol78eyw4AuzHAommhejBSoX55gb216_iosXIUC_kWVhItMGNLhySV1L48m8UipVZbHlR4sgSke44iTcr6486OPXoDj7LOQwykbvPHNI4XcgafSLWzk6F_CJo9sE.R8pgm6UrB6iJTmtl4cQ3iNAtGeyAsCPBFqakbkkyNTWyTo9hb3lrVf0xEoMQLTg7uoW5fjyEuMbWgP39IOMymNuaJ.P92xmrptw5NgAzIYpyS_RP0p_rxgPiVD8rekrvP2xSaMniGhI58ZME1A4CaDsJTvMdupUPUPGjwoMU6iCOce1wZKlci6L1tT1o8FA92gz2b1RoZ25Od2DOXdqmWv8W_cH7VE5f3W6YFmN.WdwmykUEnDd5GUSeZdnVIx0JQB4AHH0Ku5xynyT1lKQRx7ReHdfcRKVrIZaR4oIwtjmjcnu1MnsNfiDgsQ1fvFkLBsiOU_k6OC844gQZ7DFretvDXvERdG.SL8tsgHKg_aI0EoV9XpDcqQcZ0ASSa889h3lrS4kaP6vYDC2C9c9nrDkAO33x.SVrvKasJZWHGkoUwznML8xKqJXT3xfw94BrUPvYXJHJ7Owrt7GcbVAn27ZtPI38j8FHocP6VuHJ8Vb8NsNtO2I_KuuQ9sczQsPHWYgQ8WQGed02Li7qwNwKB95Hwo4ysladTKV5ww1TRAa8Tr5FA_OQAh83LDpbJ4V6l_yps1ieXvUqacy7jS6v9gawM29CSo0qAshX6doQoTS9KkFIQkIgoFMh_31BWEz_P3.6XaXJj1tGm.nk.dR2Ta8RBGaOyIlO.gEJFGZYg2TBhQeKeMfwcIpQD4V.8x1Wd.Qyrg.z_wnkUGCOdoF8yAX5JtK3pVi42SFT6L4hFTob10MzctK2GBAL1G3L5GXAHQnO1mG2_Li0kR_IS.e0t0NpdgbL468loyGUEt.vrlTUiNdwuhWyf47mJUHzBildx0_RpxckFJbh0FfaA3T6j.zBvdJs0vgFl2hPUBDblFQtbRSnf8xPyGPz5l.FiE0hNVzAJY",mdrd: "YIR4aCHNh.OhynJmOyaro8C6Ob_6nFVLJ5iLsMCDOjw-1739177346-1.2.1.1-GyUw12gWk6M3sRwjEYK4de3aruyJS53ld1IJAGVx4B3EQBtXagBtOrelg_Qj351dyzW1YO7Iv6JkdaBubBXFCaJo5hsv5rxVZGg4c6QZTRO9jaKtRbOxCsfdYA_KJQln6FV0FMb360bxIODWFJLFdWWetz4zRwVEfXYs.Zip6yRZHR.BwJNwcm5ntjpYdp5Gmocng7QJVD8KuBZ1pAsSTsZzccbk9GA0YUS2tsarX3fWT7XM.yjoX57fw0e1Cyoxee7mmChw4GQLWptSEZeinIfQBN7N45QbB82Nk0A14S7hkK0GLg.LHN_0oahqwC27ERaIlU9sBgQn5TFKQ5ptPY4RHJuj1uWzOrwSTp5w3GP1F_rIKQunO9qw4M97dSM3.Y2dq_6qGHdkw2hBzh1dSYtVOxcZAJwTcrXllEx6a84fSsaL024q6ZcZCLAXqSV7x8.GyXSobu.signX1vDCsBsDH_VP7DTzSfrLP2vaAC32XGap4SD.Juj5koDQt16ScomiOi2T7Xt.9bdE1QO1MpGI4dLBrC.JuxQynCkq0gV8n_s17_.HJc8it2UvorJTbJZ62k874jKJeWGN9vnijzlNSpbDKOtBGAen8.k9Fvd5tis4yfBfA.umDT.1.9sigZVMdLDFQ7gu63Yrp1I7c1PFlr82GMViZEcRdPZt30daJtao9B.HyzcBj3nHz3uMR4ihTSJQ1rRlM_b1jEoMteydSLTfSV0QodQpLICbPyTgCnv8IB9QsW.UYSow4fjIznK0XOfzPajRr_hv3M7pJu.ToCuA_K4HJA68Zmk4hqhnmerMue_hEziqP9TLoJS3clc1xAz41BH0s5kSIkEpC9Wn7etLnu1YwSxq2DiGgo7saFkLaaTahURJSa5.9KEYSEfDwR2Cit9kEPIFQk5drNUjwSy_ubP8LLgiYRY6JTRnicJWtXaTNDJhyP9uZNqw4i3wGIxOSelXvblynmZVZw4zEqDyhDBBRA3zsoWNmDDmzB4OWq1YeluHSHQeSHE0VNvER5pdilGBHOqCT0L2Hl5SYCBr9ntrtPOtvCm79stpwCjBWkJqS9rNa6xScXgDh1vcvtxVBtBc59P81XCndPV2LEpI7mvPoN4BauP2beiO70Dp.tXh0EiBrI7Hc.PdfBVXOO9G4ovCk4CclFXEqF.wAWK_cKIbT67iqLIfbMvJV6WAl4uIbesUdoxbQsyYuIGpvOS.OZ6Z26qjQ_dYi.cRp2MB1fKbJGdk_NYofD9Jki0tpFd3mYsU1Ub_hNXsOxZgByMFVp7pf5Z4jWqV4zvcIb19Q2KApSjVDTCYg7Hcf6BVtIhv3cEffFtZjcIPKD5ij0RwY6ai2T.l_FRG5sbu_eXBWA_lauuS8pj.0zpDUFn5B_uZj8ZYgnPfE.V_3AzV396CpawaM.TwDe.yBiAEDgTtMnwqs84kcfwk4vao9xU.TFmU4o85zm9ZDB2kIgQWpS2dv9GvUpbdxL.ndcrpdU7zBn8reirzawUsHAn1K6PedRTLJJY1bntxHu3StpOJz0N8ea6n_TUCjco3ChTPeM9oaJVj6SRW8Nhc3kB_QNI9ahlRgtZsJeQOi6bVJL1ZmeuSYpJeRnCTnfK5OwBTEFWdZO8ORq7n8x_E0P0DKG9ntX2FgzEkz74HNOk1_GV7j0SHnH_vXszRJKmIrGJNyEs_CjrRrCFlpgm51WEW8tgnYUZoiek3BjxSbTlA2.bYQEatwkL1fsNTGanStX4ixExcl1J_kxd8UiNrE0xDSOrq8EV3cayd9ymtTHsM5G0ytgM7LoilEBmyVSFZKA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fad8117e640830';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\/8452931607?__cf_chl_rt_tk=sayLsWayhc23vpvS6fMg4UfRuehnx0BDeaQQyWUZUTI-1739177346-1.0.1.1-0wIOiNQWLVwixSZ0x4dYNeJc4vzOxV0PeksFMgOys5Q" + 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