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-affc7snn2.mit-edu.top/post/0698274531

  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-affc7snn2.mit-edu.top",cType: 'managed',cRay: '90f351d0fe853897',cH: 'dLh88ehRMpzmgNiELYvpQ6i19.im28mn52MCt5gmIOY-1739098447-1.2.1.1-pUZJNoYQNxSmtf6QmKmbg0gBEIF841GcUrSKdMgfvJY7UmOunOIpusZJ4pIM9K3G',cUPMDTk: "\/post\/0698274531?__cf_chl_tk=CFp6537kGmZdJs7mJjc336HIjvcetBdYMQZHJ8sF.5c-1739098447-1.0.1.1-wBWig0emxALG8hYunl0ZQDgsWVk_ESJFULt6AsxZ6aQ",cFPWv: 'g',cITimeS: '1739098447',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0698274531?__cf_chl_f_tk=CFp6537kGmZdJs7mJjc336HIjvcetBdYMQZHJ8sF.5c-1739098447-1.0.1.1-wBWig0emxALG8hYunl0ZQDgsWVk_ESJFULt6AsxZ6aQ",md: "o4eaqrPA49WxYeKCfU4q6KxwxF3EIalAls8E_7ohP_I-1739098447-1.2.1.1-CFctP7laWt1XB73s.ymNcTNiIpgFqg3eycMd4srC91cRF7UyDVxM3tQHDJ9LbwpyIO.vwHGWZBUxR3ycbbUIMxzDqCbeNA0btJHm2VDg4KmqzpmgDBQTvXo2JhBKjwtBpQQpX6k55FY.j_XZY0EfmJ.qv1O3NWOIm92QJec7j2qWnke3UntcpI3ady2xTYZLn9doWUmJBg4vnJV6xzIqmydmlav2j_k8VJbuHbpTsVJXaVR0l2sRP8dKsW9HvqjBVVUshrO94rkFqKdCto6QW9_eiZLXITPCMFsCxE3tvutXS7ccglChbLIvkrW9U.3Zb6wzTqboekKcHCdqeqepAM6UXhRJMEozNENc70r68xAQlmdJSefdwThDutP8Nz7peFTLpwt1grCevitSTyHWAaniLnC16KjCPlcQDLpzQHP3vvrztZPsqs1VHAjG9ekeuE4GxqjA_AMuurJ.j6teqVZMo86Mse0SOd4M9V_9bqio8Wtt1Ctj5tlnbRZPelBn9O.YWZJmPvYoKuQ7KE_lAbXiJ6bpfwdjp6KDUDHcHwGNXt.iJaBulDahelfyTD_xzZLR0Zl5zaHwWSbCNqX1oIAaigRjZlhwvNilqcUJeiqD2whm4sTw1a9GVQo2JqGmMbylgOC4EaiA38tX5Z8SOMdL2ePfrEOx2yPpDRSKakqhRy4k0AF5BENbAPkYGz_Nay3liYXJheebB9qhh6ASdM9akeG5_AiDlv8_yAyX_pmhLTETHJT2mWjNwya241GhTNgQ4n0jNWfZGHd06ppTyR_mTOGo66rpTe1Xp_j92YL5vIFQS_wfQsIdcLrl.3.tOWh3LrXccLS5nOiClmVSCFb2a8GEP8K7AKyL.JO1VYTCOugFgiKVRTcF1vv9Ho1_ynugWrObWfF3VIXscJw_BuE0264XC8hQrrcS_zm_O5KKqe0uu.WNx6x93pMwug1EtFze5AxfVHUVJ4uDnCTTdae8eULwvTU1eus.ZLQZpeEgCGEZhyj0Qnn_hP1F.rW13Yg_zjZyMU8kykbwoLK6GbENxLeJfX60TfdIjS1B7_DHXyH3TpMPUAc8XY0SY0I5Vyz6yuMTZrEcq23M1G7ZDuL_qIPGer_.9Z2ygwDsj6FeFqT.YeGZ84ElyAqKXbI62QZAKDo.aUZ7eaboxAgQdQhgHxnRR91WW3gOPv.A_hNduTiY9meTxzs346MfoovE5z_O6R8IZTsmRFourqPiF.fhxjUd65O81SeDF_.OIBcPHH.k_XaCgXnevdge4OJLnOwNtav9JGyz.Jn7DQnMERm7cOVlc3IUu6XyB7X0Vjzu5MGIqZgYnYblxzo43NBfZS.L3UfF.R0uI3tEVq8OPYHG0AcAwpYGgLu3XwwZu2PDnNnY.DMMvjLrjo_UbwjEuHzi97vPDkzo6MTXe7w1wPbaTFWCvi1tWuYARbZlEm4nQEm5VacQZ2Tijc.trhjEtwbFriuQuCcBKmwWDEe8gWreruALiwsNO6uSYIGrfDXlRBWLypK5JHDGHIRvocyXUZhX5t84gbqjNaIqv4xHmnaZjyaDsZ6dpzc3fbQroE043pv_JjbuwD8JHiIqxRzIKGhyJGTC1l4bNQrzXtfJhtKitprXMNVKh1OnDpiiO5MrvFPGPK46MNRJi9TGg71Ir9xqUW7EfZiSF5Fp4Qk.SJ9vXHP2PH7HDJ0YNeCYAwk5LS5Rdt8160w7dqjyCt_XC5gpZkuIjfxP85TIKV.8zws0WHwjzbbgdNIAjxHxDgnVzBjISzKor8kfFeLtDxX63nUud1QCeQRyerwPyRwndPdFJ1_JcFz0LJp_IqNsTLB8Cu2JNWvU2stBAmmL6QLNC6PT2TxqANp4g0EsvN9D1TA0GG2dVd28bcpiiAN8YmugAuZP._GerKtG_fkT91e8QpgdO0V_52Dy532wGuTqAmbT_wZbJAqJ8Y.P1dQYhmvVHgk.7r4tNz56cj2k3qc3AyiNqoEBHjbBQ_Slri8bAoIQFd_zJQ5RQQAra_BykAr4vWbueoZDbWV2dOV7XSdRaF92O3l9vnYFYW.8kgLSVsk0af4KTl5hkqQwLgiQxdn0fUvjc1iR80y09kmMpExhLAdVo6mTeyUIZpQG7YF8Z1DJTX.XmrxEmfpvWKauKCE0Lqs92nB6EtAmQlVyK3qBFUFkUCFtf2BK3sirAitRi5ALNrhBeIT2qGt8qvrI0V0rGHRUM33wGqvtB72AzW6R",mdrd: "CeEsg0MbHO6D07jQ_ZKWX6gEDQ8Kb7W0y5.mQESpqhA-1739098447-1.2.1.1-Pkh0FHDRyOGIkqs97xD6a8Br_ltAOpZZVYS3SBei86A09kxsdEBK9LlnCL.x7OSbiG9H51cGbfH.YxZn.RPyZLMW7YBBRSO6wCLMaB84Swue7Vy0FcHmi3faORjQvl9DgZpKnuT39ZvNVQHpmK3_wyeJthPJQFkrThWyDRp7Dl7Nxr1YOyqtTce66ZXulEc6kaxOGtt3nO1kX0t1tOCcD8.AYgCwnJgWfGLQJdgla1TJfToSFPg5ua55k.uo69YLrDdq1puqg6TGgas_u2_Mj3iXIhkFvUDlYzMLm6uTwdI9iMiRD7fis_MjqOleJkNRhmBHmc.WH79gYGdh347oyuqgpTE_LYd92vVQLKT7IChLc.4AvmSBrpOPZWHboAURnDMVgOCBow02pOaUde46YOZm7Dv.LQFQl4mX2TypzZCgol5bFxYwGDC5OUtpGWEu3_Kn5H51Ej0dJAL6__WKax5fqsXBrh08j_TvaIwZu2XVyvsNIQedaMsVOaQ5WnCB_gO8BFfBt26qHQwq8XrJEd2zEDNRyFGaAgfAPhln6EZBM3StBr9XGjzbTrspx2JEb5sLXte8a9V01Kwxm13xeWYmOhk0VLnmKY472b5wGAzlmvfhC8SN4NCMz_auJH6EAkC3fBJPRETsOcrubNXNqTr2La8WhpkqNHm2iPRI2HQ1dM_IhUnkHnC_FcpOfP4e2h_x9BfQY70z_6F1XU8HFVpv5du8m1gl6ju8J71aZ0UIHUMwZDvKAxcY1alhC2xCPxn_nxEP1OQIHag.DsDwnWLWlT.V3NOwiUJWDbnRaAhKvl.VxNFdsUXx2D_rVFaA_WkAVhliwInGWBE9L_46RnE1DcumQREVLERQGZF.H9tStE8VM.eR5MqfX9mDzA1FZ5dYbJXxX_EOea9YS7kxva17wEoI.0CwT_.80sIEX7iMVMFwSSd9OqGUF.b7edrsJn_hXIPtCUSd58j4K_Bbt2UvBCPzFSJhBbOR.D0hv7TiWtBA5c0xc0KLHtB7.KJF29X0CayVNux_0gPND6T2zr0qdJG_W2Uv102VFL9sxgrdUcpFKNIcYehVrlkrlWCbEpJZXm244RHRoPzchxJMQK1Phc3QWy1pIJCvhlNQuHVYUrlMpri5K58BbQKw0f.HS4BjeMS.LTNpSGRKEUtMs2CTlIcqa87vtEtW2tuOk_.Tdjkb4symT.hRnxUb2CbeoVjkB4I6MKy_ePzU4XOvwSDKajeKwpe.HG4vzACs7hEf7RNf_um7dzaU_OeDdDVmPbNwHifinTx._bLVhcmyPsQSdsXGmDESE7qQApuROnpfCnJHWb_5JgtNJGVDF1hzvTrRBc9tin7cqnXxtXcbCOxrw3ar9wHYjgYZp.K_GT7LIml2o._smqs7gFDBUGQoFYjiHtQJmRfnnv5vaWq1UIZzCZWXegrveYj92prK2RbRzF2tdbcoItnIi1tgYN_fjF1xRvcD3N8jZPGE6M7K34Za0JeYH2._MXFkkC_K09fnv8QFworfB3.VAyQNTfrSYNlXbNtG.K5CSjd3YnqHRSbNEfG1yXD2sH5zEj92RZCe3Raf9MepqZwHwln1fUCd9h6AL2Im.lu35juYZykLIP_1jpWjQurFGttWCeGpAORIxdSw1vfbVDg7Xwhr_X.mpwYoynw15Y5lVG36RpkGc2KSPm2Vv3aogZW0RCaUPvURleKZlSLgd47uuU0BJWFcwhzpczS9jp8OWKqOrz7MJ2m7JxpTFwe5QzRJNbBRPT7vhcrFYjJAo_nn_.6D7qebEAQPdmQ84SVyXeE8GYqrlBFcRIeVYhrlddS_z4NQOLM"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f351d0fe853897';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\/0698274531?__cf_chl_rt_tk=CFp6537kGmZdJs7mJjc336HIjvcetBdYMQZHJ8sF.5c-1739098447-1.0.1.1-wBWig0emxALG8hYunl0ZQDgsWVk_ESJFULt6AsxZ6aQ" + 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