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-863800220853.mit-edu.top/post/1650978342

  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-863800220853.mit-edu.top",cType: 'managed',cRay: '90fad6aa59c7073e',cH: 'nrFellrn.N3n8YGFhiD5Iow9nc1zJ1ijO_Egl0iAELk-1739177289-1.2.1.1-D55Q7zuiNTBWQseEZF8GWdGMs1sKmsyKwO.5UPc4OV_KxFGPRRoXG4eowNp3dwar',cUPMDTk: "\/post\/1650978342?__cf_chl_tk=.Xw9xVbl.f80hQ.8SrWKy_lxDsiQ6Oage5zMYpAgLZI-1739177289-1.0.1.1-FjLW5x1NVUI5Lq9tsRilD0LUDEJMNch0emU6qF4FKWM",cFPWv: 'g',cITimeS: '1739177289',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1650978342?__cf_chl_f_tk=.Xw9xVbl.f80hQ.8SrWKy_lxDsiQ6Oage5zMYpAgLZI-1739177289-1.0.1.1-FjLW5x1NVUI5Lq9tsRilD0LUDEJMNch0emU6qF4FKWM",md: "y3QMBfrMrRM6xDZSfauE76mn7Z7oIjC.28rP_wLXuvU-1739177289-1.2.1.1-3UpIom24Qu4oOen.61h34qKbvMqBnTuQG2IEwAOAeS5DWHEjgQg1xcIjOqMhoVqiATXgYkyw6KXEkZIl_8geTwYjgt74KQVA1eeiCIhT6vsRSad5jQU1rgaB0bEKMhQatvJSePCI7whXe0MEqJfM4Z8CSIuto3cxstdbJ7W3wYQ9GmEpqQkU2L2goOvvGMGPxeusWJiPugQUh2cvxX4_DGAzmP.1j79mHxdsMdc6Dq7IqWnYeENYjlNvTmCRH44GF9ijjVpYwaJ7vkmGOM4GfnNYtxkoqHi6p0ZRnA.4rLfOA7b_CbmPSs48WfKVdsN6LQgmuWJ4vBbljhqqlrdw1R6su3shjTRIYbykon5idpFdNMK_yE9EEmq4N_jzOSlYY0jeytpyk9KIEW5H3YCdS1XqlpkyqZjZSyKGzXyJ5SNttvFuitVyYwOhJRIj7vjbHVl3J3lP9ZHdSQEUqscm3c4Q1XuOu0s3_Elr1p7Oz3k00JlSIigrjm6vcxzQBEjRfq8i0dGY9lf01SgpIoARdDaYlKsZLhJmAC3Kvxss3aswLmSb9Q67co3KGDNkT7oisAV6nfk2BRHv0PXSzxxBeiwYeE_GH9INd_U9vwEn6EXyj9QUJW5McN7_Pea0TQviOmtlLgA3hgTM7KjNv5EGTb5n3ocBu1yjUs0Aog3r6DJgMheQqnKKp33oqyA84whcrIPkykOJv1Sp5SwMP7bsKvwnfSGDc5pjpXYC0Hv8Tz4OWp8sd_bny0z_vFItOtxLkrFhmFQAd.JZEfCrCO0Y1G_DqUDnuMLzIHr_dma.DXd8wR7QJy19dp_B.yBYdwP9hqo78VUS_qqJB5B49_kqUElIlx7Q_BYwACNiflFFKGS3q5qlkZT8439M.VUX.4KV1dgBj4USHZko32ML6qTi6_xTO99zxvmD4_oCIxJJVd5KPoihEvn65K.AcNMgFQbvGsj2eMLXcWRq1zeHxae.2HR_nTfP.Dax0hqxeYwDtVBNzS05_AV13rqrcMVEfkNnhqvbxQA32nVOxtvaR8VJuV.xb_HiV6ilLMhLR8xg6qZuymhdJdzF.bacBBft4MpczGOxT3D.l2gpLxql_194d40WAn6VBwiTgNApIZBXoGpAGdgo1MbzeRHnefT1w1h6gqJvdYofmpi6tUy..4Ia6XyPCv6pdkNSLlRANhKJ3p2iZmLqT14RgH0QodFQGsmoQvi.my9tfnpRJfHSb3J925cESULweW7W21RaxNGX5FBFPh0QPnSJew8StMCHwU7ZdCC36SYIQ.Ls1Ta60rlK.tBJGBqzF1xsecUzaVc7tAnRUYYcBpBks4nEKkxz8HrKlV1v1RlfUNvKFtEAZiXdrYweNak.dGnbRv9dArxaWnJTHuIcBBeMWAOhrpSvzs8WfGiGwY9Fj8u_XD8aFMOZF7QmPZ.kbGGCkRdLxI1dqIfdynLCwpU42OpaBxeH6yVchTGs8XOp5zVV4MgMpLtCpmWB541rmsyd_vJVpi3uJzJTQwBwlKai.5SOjlR8jtWSTX9YRzc3PL4SdlIWJfdYROpohDl0iGooXQ7nqlY3qxvsdRTgmlsn4pomBIaBTs4zi4bK_9WzFufCbt8DVu9jX2TkJ7ewynlbbdyBg53Pc8dIY4x7D7s6tL87lREc4kWr1MXNyBdCzDL84O7DkMScTqRm.1qfgnn9EL1iV13myKiTw6b8.4L.nJZ8_xJ0XZIpbDhfYrufiSbKs42LaObPlg6jm1.vhxL8cImSzrAAHnpaGFFsQLAE26RjO9G1TJkTh8aMJiwYK43bJG0ZyC.XeldvgmUpNtdKiQU4.2QxQ1bbZHbH0hyPamkac3cGaW3WqYjI0O_d0iMvwESKzcthQ_mUl.MWG5uQDxklKWPl2JsEvxhh3J4uPhATK.sWLP8BH5NrmOQxiFlAkdzn8.2mPL.kLjUusasm3DkLr9LLYfzwOP47OzaoZXM2H1cuYCy86WIacfXDvzt9kMlixGEzcG7x_XUb5NpfbMaB.w9Ogm2K3vYldR7niad3XFW95eVKClhsUqmX9alzOQrsTRFD_achcWkh7SCILpqN0AwW_PIWfhYjLNjuEDFY3CbZIPybkf6zfD_olUoUEWxtg.5C9NpVy5C_htzV7K23jjnHZ0We4fjgrZPzlBcK.RpX_9GqmS3Pv3deQ_FcqW8.GLklCL4VfSFWCtX.OkbpcN1znZBuAQ9GFkU736w2RXX08qpo",mdrd: "9l5ty7kbmvr.vAUkBUxC3.lgcCcQ3_pfFlAyVNRXm_Q-1739177289-1.2.1.1-rxUdu_QetGoKNKlGHouqA1m_Hq4Yow6QKrdHJCyid_HobrOasK.Cp2esqPXPF0sSoGo28eJYnOoRGCt87zY9fzr.A4K1cJBneMgddPjFNT1_t2jvRc7YwR8sC1e.0mEPlFfa0wpmFcWlzUerJYADp1FJhsPg.swYOe9ONiPmCZQMf06D0j7eacypl8UwwYr0hQvn4ySIFMsDcaovUA5v80xj3t4jGWP_omDdDJkHeXmwB36Kk6C31w0dEuFve24p__TyBVYegdonEyca4LNsFCWBqXyP5oBWPM8zsHRpkbOfdoteH4.9N_BVJfNtsYyH.BqmtnIVSPbtJm6GNp1loklU8a0JrC49DrpUoHacwW52uoeN0bN9a3.IJY9DcGG01RoTPpfe2Nqg1pKnPmC9vEO3ZAPLx235vRzcG5TnPD14xiooHVDD4uNbGwlVggCk0U2KADwuToAMvKdgOCNo89Vf8IgUT6hFQnWNSNFFkPOe7i4ZV3fQRsrlrJL9nbwe5.DVQYrZ5ok0IHK3zh4YS8lRdBHVoYRZNfgAbTCNanU0XjVyad3K271Vxa6xA.VIlRs.ecEW96Gv2IwxwVmI0ERp2eKYFDNMR3r93aLm_jYKeQ42HGOVmswWsvml0oNgZIFIjXwSB6z9WbE0sy6TeCrLoscDHLgZ66HIBXLhHivasgByvRUNycP.1D7Cy8ku3GOUK6t3RgKYOWpuceeZ9gRbkESSxYfTKvo8.VOJrAqVk5NKT8hDpGlf63esNu92tIIudKFpuTlGKg37KW9TlO1e5jDxThxdh5hmzVdSSKIQrSVy1c2lOLTX.h4N.4xZ1lFKa0QOaqio_Vh_W1gzQk7uXhUC9f4ki.qEWAA5KXmpP8EJaJbWs20gNYt7NsXQvBjadISxCXzL5I0v8b_h_CfxNCclFz4_2rV99YTIthLwlorzpc.qGJBzUM6FoEOaluZPq934BWoj74jULF52qF.xmC36xMT8urb4xtAKtum0_U2v1AaQstHDP5kHfmTqt2IuB.eoCrjIj_19pA6EoDhFlalvtfuQefw4BJqQ3RRXiXFbwaUSfrkMTS97swjKQ62USc1WF7LosE65A6uQpWlTZkmpEpjoU.KCR.n9yHzRdo0sSASAxQ8vDPG2Jens.rK7JJtOlZ10DdYSY77h8mLNjKc_VTMR3lNyrxk2rQMeVKjMorqTDQ2sFOBgl4tM7ylotjM1dKY1TJDZqJKh6KJDp5JnG9L2CjgvByGFdavbMKgNCp6_t0mEm4eYo_D.LDQeEfcvuez_lDghROgecG3RPqYq_c2n5uNy6B194nGsXb5rRo0bxay1tfemlb5C_aURgzCwTHvxIy0AXzTi5PY3uPy3Pl7GUgF93gKgxzFM34EsjTzdti8Zseo4U4T0UGnwk_5aW00S6eLucz4gu8jZ7ff76AQZhqBznmZo0nB7IuvP7YyH3H8BLjq6G44CrC4pPCbGwiDTEDMwlUNUeqDC.V3_F5ELi_xntBGCaOvXCPM_xLDjvdy6dmSUNLI5i0ZelFkW8eVakOPOC8NjHgRXwPX8E0PgQYNl2xp.ho_7fPDidGcspIsOpIqjDDFrzG4uZig1xQ90D8QHtljnC.rBfhiakRnfE1b5pVXq8GJo9eWVYjNrvjr7UDdZ33_ST9RXoIjGE8UYqPkxlohR5F524l0t8YlJbTEn8FUOF9ecB6gB.LOITTwZQtyW1MXznYY0r8o7_tsIKDyrjz0x3RNzD81ES.EiFWOB261iXKeaDqCU72ce8HCA0i9SclV1wCsC5YHhl8B_d_4ESMc5SVw5eIwHQyBo0wSozOhlNsU"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fad6aa59c7073e';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\/1650978342?__cf_chl_rt_tk=.Xw9xVbl.f80hQ.8SrWKy_lxDsiQ6Oage5zMYpAgLZI-1739177289-1.0.1.1-FjLW5x1NVUI5Lq9tsRilD0LUDEJMNch0emU6qF4FKWM" + 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