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-237406967109.mit-edu.top/post/1573406892

  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-237406967109.mit-edu.top",cType: 'managed',cRay: '90f23b16ee133b1d',cH: 'jF5TE8GrNZ8805mZ72j3gnzVXzAxL.6c5rpav9SDZXM-1739087030-1.2.1.1-sBUNGdPUvcJ_40GWzQwslUvyiHnvbsBY55E.lc9KL4ChMKawYG7BJFBu4GkQxv4q',cUPMDTk: "\/post\/1573406892?__cf_chl_tk=y7HebC_dnqREOHaLGeOTuJcALO2hegn4k.liOiycaOw-1739087030-1.0.1.1-FZ.IqAMI1SUR6.W1na3QMSryAOXnOAZwYpEm7GTbF2A",cFPWv: 'g',cITimeS: '1739087030',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1573406892?__cf_chl_f_tk=y7HebC_dnqREOHaLGeOTuJcALO2hegn4k.liOiycaOw-1739087030-1.0.1.1-FZ.IqAMI1SUR6.W1na3QMSryAOXnOAZwYpEm7GTbF2A",md: "mK1sZEKNZjSsCoHMHvjftxG8dlkvMXzg0BUJILHmrpU-1739087030-1.2.1.1-kSMzEqizNm3eUk.vwbEQDD4W1H4.Tp5mCj7JNF2qXJ.bV9nRLYf1F8x9x93vTCYYSM7AquZMj5JhVqASiqiapUq7zjJroSpr3qJ4Uq99cpQbxRL2TjMh7PMmxgn_SGMYwUKahSxdOm6Qqv5O_JEB0jvS9IaE03IcfyijSeaqSOIzPTHcBHIssUXXeogXeCX_EEm5JXeSf.4BTo0uxiGgpwNuR7ndu0oFZtFZFopIyBQYW2wo6UeY07Ly9dMFyUrH45FyfA_sYFTU5I9f4OR4366CXQYDet_qfSkkFJnjJGb5CQoVvVLtkfWs8KebfG_sZ8xeSCf7vraZqAmATHwz.TLJqPBa3DRIghEhlaCUVcRlVSO.SDnqIjp6j_N59aXpskN7zPTqnrNJ9XZE7E6kQT0FMKWNRDlKs25wAx5.Chjh2rpZolqlMHD8om326xz5sC7fGkKN7hhLnyo2snM5LhYhlM.Mdg9QC5ae7eACO7vkP9uKPf2njzBy2cgjPso7A1uEswduA6um07bfSK0bQ3TSechucv_5ZsO3.R15Gh_vLTnsnJe35W7JVJyzTBLh5tngpqL2gLARaHAIA3gxk_VUI9HLyjoYDxB_fxumiINSobe5xfvACg8VLU89.mYwU3_V7jX8N05dx0f2ghbi4XsGXbZ2tPZVAXMqH9hjzMGWKdi4Tj4qS4JJih9iPL02X9r7iWls_U_ppEDvpovkt0askRJZ9349bjMvGbSE8NbgcdyFl_AjFSpe0Xm_2_g7CLPY.Smn2evyYMrNVPm6nnJNeHH7UREULq.aFmPQz2eCExg0Puvk0WMASz..Yx8pXMFiJQbR7iuCySobjRmZyN8GXseNLaStgyMkKGVRBEUVUb8V252bRcYb_knGtRkSB5pzma8Q9oBozXVNMHkFmAtMb_sBW8SCmOA.SjxF47Ewl6UcslmkaOP9AhXqnYycEaByleXTMGh3Dh38Dlqzj137.D1z2Onp.XCi97xrNHbVBVjyv.rz6OeNuvVTtgOhJVpE5G7l5FIi1lTBFqyaOQct36pNqemwNQPv83iSrryBermInsfEs7ny0.8wI7ffH3bi9umIcefi9mU_6AiM_wY917Auow1E0IRka5qVcxPQCtadO9xrMi4aO9oZw6a1U0lMe99RYq2psTfMtNU90Xe.SEz09oxfodrqjrh.v3NvK.tNXe6kaVhJ7GYgHPZcAlg0_aWXhDyS0HfdDP4MmPnYJks8wmUB713Fyi1gu0Zyi0dgxIg.EU6Zjs2tFk.ExgUQ1jbbLfax52Kk.6P4kVdDi...x2ujg5HJQGUqylY26_aFkZO1CwsGsTdentrMIZcpofHRzUgDP.vmVRZmbzHw4YQeoLhl82dyeeA7ub4LM9D8B.S47dP23plCoRt4_3oXniT86TM7Xk_qd1JtYoFffG_V_.rKhumQG6b_VwtUMbaSqZoHddf1B8nyytFP2cwhQt_8KxzDcF4JVHxDUFLmLGb0bwrjNhXLrTg6syt7ahepnUlfvWvlVsopKDrYcw9MFJxB7ix3UEqmSFXiKuS3pzCFLqqtYmMGtDpbwX25m.msMO5Ua7DzMjacZjz1g.M5nGnZqlJQb6t2ENJGdIVhtICGp2aFC5BR_GOm2Jwqy59vIzD.5NsUgD2ChysemTzJriSuNmBdu8VpxeCsrgoQ9n.LTLmy5Zw8sivjngjHF41SoPo1vNG52tvV3iYiY_lpeaGRzqD5JmXNmE9XomhKTBPpBM7aci7hq6fxZcDVremHup2JLs1miNwbCcfi3mOSzLMpaMSTuvU4n.hCEPHk0Jnr_i3Je7R3PI_M50YjIvmrs4lThnSkFyAaAQt3WyHRO4ekGdiUDfIEpzuAjT6jw7WybD6OjIcvBGg0nEzFuJaY93iY5th6Sog0Amwi03QEupJlXEyPDRdyjQV6m3ga5Y6rUqUfgHGUw3GUMDHSIUgJEbZUKrWQBCb77265aglwRLfpaZqMPXVJRtahsVnc3NuoQQ9Kqr59m4GQxbOd8P95QEsPsGSpY1gXILZM6RTJyb71vCeINv_qqr6qMN9TkdS3h34BYBKfqOLFZQPfnajoaTyAamTr0o_ooNUSiKienileSow9fVrrtOJCBaWnT88wxU72jXa1.27QgQxDp3kEjuXEFQHO2vyp..yZHBQvnS0Hcnlgr6jA8TOdZhnumjDEhuq9tbUYSVXkasnoWtpkmLnz_1f05Z9FXtH7",mdrd: "SDSteTxw6rMli.OdC7Zu2jreOQfV17rXr9wNPRFFUmI-1739087030-1.2.1.1-9W47IFA8gvcxnxIj53cXkGsJRZTGQmj8wovQSXsTglrr7UI4oOJA6P_Q0iKEm3DctBD1943UOD9W8nVqVewyzhLDybBWq.zq9f_9ak9loLfDfvk6ujKSby2d8TUi7kAIcDnqc7_GSKaWGXGGBuKHyI2UEG0We2uJ2Sjf068_Opz36fC5N9juevVc6KP0U_b5ootax2LTlw0thc2H4L3_K7WvDA14uTZJ2FfVgoF.e3mfrEnq_BYyVfgZhRrwmgQ_QUYKsVf4C5YmILIo8e9SNkx_hJ_drd1Hd8LO7d6VWIe7063sSf9zgkZQk6D302uNAnIv2sY1IEsJd.IFqQX6IidpKN3wwNqEoZT75FLCw6FWmgqcC5t7k4CJaDFG6xZLdK55uNF.iM72Qx2wjGUZNr7Qo5hTszHS7woRL80l3nelr12z0ePvtysRYmw3bJTWDi96XJlce9GWKBhwhDQEKXlfGI1c4a_GVsT4DIBS9CSMm68jJ3t09A69SwJsh8meWcirtPueNijqQZSN6xwqSzU1QwYIZqJDCms5sP0KeChZntCtoUk6FhzKRKWA4q.eyXGh.IuES8niIq35Aj9e9xQyC1xAvOTI_uo4DswwTCvKxJzTUC3lgyeJvvNnY0CYp9CyWsz6rK_TINF4IPnPxlUEyznEImBU9J9NPD9y_HqMZ.P6iiadh9YeR4VSalWIPTpChUicrhsr3SuD2YlkBKlDSPgynpUNjQMB9h81LPoFS_XBBGZLQaBQTxdNn6h6xUG96C65Gqgy3wRn5Iwzk4K5uslm0prQPOOifQZg1wDmgN6HB5cDapLRO3coY2rl4XbibGrgylLgRQZB4PgebKjsdsDSzaYqlTaqLCDKko4d7S0dfYSwwKEX59_CWEz.IzuKTQgsY7QlqydAzLfpZd1g9tL.mL8z8dvLFCaP4zXQrrbcK88eDgezOj_TogoSYCcz0AUL4frj4SAzivH5TVsuvgGVVsIAh4EC.56tKW86XJ2ODrucnva946Byb9T2y34YocHWnrSF0n1tlwwT4d.Ubfs1rjjyXwOzEzlfTODHRcbskIQaNKwOsg0uv9qzANamHg01uGK8YXI0L4m63meojE0Lq2a.4wRBct.myd3y.LwGS8GTo3ro5rP9oJEB0fQZHYPcLeL3jrQhtqLkUiQmZINBvwIgW6pImX.GdgtK0V6CwRYH7fyFaVCZ_fiMoEYErpxUQFTUAhOE9A1owf9ZaAcYIGIIhemAAjm5UN7NC6eqEij46rpTCsWKkm0f2H44eUSUsHLlldyBxRnvVZFt.roDNEIzSVBqPiA_VXhB65afkZMYtinHgpXSK8QCQj5x2Yb5OUZ8uxHpDsst9U8P7uEyTFH3KZAfo.edDfezO8124So38mH3kd_pFb49jW10UG5jjgL7hRRh_bv3YZx5i.YRzGZpYoIZtV19ursGbkwrnLbYtFmP3DqsSXkgSnqrsE_5z7pYqXw.kxUPkKh_3JK6trKE4KoL0M5w2c_UE2aaPaDF8XhTCStd2LKGH0j0OfAhT8mdgkfoBJg8quEF7BDxFul6TypmEwBsWQmrabJy3nKeiYVvH7tr8GHGTT9t_kmuBtXGjxK5SRhwqMAhXfyelUm1huo0FbpBcfkWD_A0Hjgo9pVNAP8uTytYqFFdbhpTORxlE2vRtmMtiHN.f8wcZkcA4VGBW9Xp1UIyYqyh3ldWMiFPqm52m.lKBATrmP3GszYr5BdCBNWyf.kvv645nU_hdsZQJaRHKIdSJK5mFMwXSYAmueAns5a8GrTNXlqug0baj_vaaC470Mu5WdUGNgCNLQtlMKhD2uA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f23b16ee133b1d';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\/1573406892?__cf_chl_rt_tk=y7HebC_dnqREOHaLGeOTuJcALO2hegn4k.liOiycaOw-1739087030-1.0.1.1-FZ.IqAMI1SUR6.W1na3QMSryAOXnOAZwYpEm7GTbF2A" + 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