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-aff1lfcxh.mit-edu.top/post/7421536980

  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-aff1lfcxh.mit-edu.top",cType: 'managed',cRay: '910f7225fba7241b',cH: '0KePdkGAH0i1kuJAmzXShSrlqqoBdAxMODdWa0bATeI-1739393373-1.2.1.1-J_PIn5yDCrQ0WcbV.rzvqd4ap2VZhuasWLRXejDlSXvKzn2pPDvcNasounPHnVhE',cUPMDTk: "\/post\/7421536980?__cf_chl_tk=9JLDa06lEM8d1Y1_bM1.vI1bHqK3SpRYPyrAAmH7eTg-1739393373-1.0.1.1-osY2luJBc_5bdJ7OOZioofDVrEHI4g5CICcXzmRxGq0",cFPWv: 'b',cITimeS: '1739393373',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7421536980?__cf_chl_f_tk=9JLDa06lEM8d1Y1_bM1.vI1bHqK3SpRYPyrAAmH7eTg-1739393373-1.0.1.1-osY2luJBc_5bdJ7OOZioofDVrEHI4g5CICcXzmRxGq0",md: "zIuha1GciarY_6Z5ui6nFjIwdfTUt1iAsgWVvkZAckA-1739393373-1.2.1.1-bc8_9MbNgYO.X0COU13fks.pllLVYDJeMvMdpb8XKIWLuPX0SsdFKmnasmTHogi7ssUIg8WX2V08EQB.tkXK5rV_Idc4opUorOBktzxMVo84lZ2jjHL7RC70YlV6p7Zc465hGJe07_2hbUlkWGovZaElp1kiK89JGoZQL9bN1AQ0lLS7CImMvqT5o.Rl8kZqbV.KDQtH5BS8did5GE.KCyuz2VR2vsxMOHp4rYZzKDtg3P9z47UKbPfW6Nsw5ckX.h7jYryUr8pOQkz0aje.UiWvdC5kkCY1YNse1M_KDFpCWo_EZHyHg7p1TP.Aqk0vuvG.y07sHn_Vz.idHZ0vRzMhpg_Qd7FmA9RRcum3DiXfkgexUgU7GyHGDGCt4LldeT_EuxISuDjUERGPV.go1OOVNn357W6HUAPdvHNeTMrxzcsD.SsIzNpEuNua8suoBCGpw6huG8JJywHR3HjLeGBQpBQe1gaB.AcjWYcTuaMLOIr3A6M1NkloK3VZuDIGvfuvcCcVxm55r6ZEttRiP3oVHws6Mbte62b65e_EIsVbVBl1_xZI9DH_0BG4PZdYIp5hp.LfNwOVgT5apqELb7._eGsXAjkmTiEM8hH5fK0YRR0RRW1WXpaJW.P_JLBhprAwCZPP4b5KEPXIBxqnRelKu9Dx7nUqujRkOS_St.o.yDo.Urg2LgdH0VOXZ52Q66RJ503XgUCO9FE4JLfmYI.YsAUNMKjFT1xpZ1BdB5gqAlPJ93tchiiGqcuZi8h1NWSdl4oFWc5FB1bIGiaPRAc0ftgLPeyWaNUcUP6J7ZNeul5Xv57cth1.0CKeebktgq2z4rT0OJ_qARoZSpO4jpTzRuJM4zLuVbGOF67y7fSpuZbf4tgJsCldOaFzbRHQkf9O4xJSeJHfH51llvgqgcNtH7NCanIEvj2t3a3J5M5wgY0rqgh2QRMQaUfjwtjgyoJ5RtCGsvJVlJaI1dlcROFTRrE9VgQ2lHRPfWgnNq6ajbOfTBWY9EldgGAZ4pOdAe_U22mzaK_gtBxwnXy0TmqhVNKzm19YhpoJi6Pe2GPLDxracDrn1TQ7GD8CAKwdfYBCjzLNuUVTlw0Lb14tAvy4FddDORxGdgp3Qbtnid_RiCJueqZwG6cyCIIq8RgMUn_5VcBRWUjzEPEQPbEqMFDwNC_ILJ8aHMW.Z9Js0sBkH3OdHMg.OM.ycURMP9_PTC1OfK9lA6KpVqVZKJjM8uxYGi0KfBuo0qK5_vo0tstnd.PTT0UQQf8eI9EvuGVr1lNSVOv4ntrYpKvNkBzeBAnepqiJ66L2FR8e8qHSihi8LHERsXsQNVT7N_JnzTjeT4EoME53hQcq1iQZqm2ruYIr87d9IL7LlR9L9XeLYwzNYiOtibJJlwUydV3cdsC9oChB2.mrQ0ulaUNx.Kx378mbJOVGyjkBe2rodXfq1fOoWhToUfn3UY7S8cCdKdsqJErORuPPR18ZXgCO0k76mA8kiUL5U_w1a3LkI6_X37BfvS8VwASFCJTNEpM38H1uCIOQ9hWjTFCtmATva7g_hMNGosW7XxWNcqw1L2sMB4ZeXKZyHE_Kk.UAGutQGNw9YQGSHBO7w0TO4BvJBfwxMIfgbJ4YEqO4qdXr0q_7cGc2n_.lRZoAbmEBSLo_EDg7zqjmycp_7xZL1xg_yJ2Q7EemE6IGx2a.umTlZ0D1xaQWUk5X_.8n5s7ZS9eVSgWBZiLc77KthEt5gHQBjYm8azoznZiTVrLSzqvgdrSnxU4MMPh5RiCfhPrdMzt77Gd3A4ukiTEp14K3QXW5Eo2k9RcYtjVsOKYksIzRPR6uNp_7elt0QTWCgiAIR3deonB89MCf1BZPoYvO36peMh1IZ9mrKTgPEpnDnJyvnnBsRiY3zIOqdnyKNaHpguIX_D_neg2xiS3RcYgiIL31Pfy_nWeUuUi0iXmym6fd7J4hFFmdfLaOkNqlNpIOoG_duOgXeGdHLMfWdCBV4O3vcrJQUKHFmsqq93kXTCgUGDZ9DJSJ0udu6PgtnHjmW2J4WFmoqv8nf8T.rcYqwernnXpUvVBBHQEkfO3DGo.YBshYFc_4Y3682B3bti7nzGmYj.1zsKhi6LnG0Fec.3wAJURaHrXFfaph9n_x.kYYDxOfVmLvDcxnhT0Nadu4txsBxwO4i3aryAfSaBOoKF_j.9_BDduri5loeHo.jfM971PPn4iMNf_qwRnvtxz9f6wClEac",mdrd: ".bjBeSROTVBLp0sXXz9coM2WRA4oMMvabIhz2R5upek-1739393373-1.2.1.1-pKoPcY8syF9yav_yPHn._caPcr7DKndgS_LO1Lfcg1dYuTCS2sk40OotNgzrBhksJUruP875bkKjohxuBfliTkAqfltO6u_IyyU_pWcF5ya7m8ISqxq7Uxl25NbUzi4FQqcoYta1zOephVQjJ_lxrOjV0D4S5JmS.6G5UYcoaBy2HKE48t1ch5RujPpuJUFIigPNg91yEdxZdB8dRd4D8iY10YsgteXhrtvgJYXlqBAq5c8zKMW9jKnNRkeyokueWVks74Rz2kf__MP9SzbXyUYckBvw0HbrfmyzHJ33_DY8oSnpuUAkS3K0sekKDumI4P_exYs1OQj8mzUWtMcUjpW9CyGb3kAor.Q8KBg_iK4xbNn4LHdSJ2S0vVrL8zDtUp.DY0Nqlk_Of9XTBEKtm18zvRWSjijSUOgLWZaLb6ajqVnOr3lWoJKwBuQXhSNwNPjcGUi1LRoDdIXKh4pC3zIjkRjRIIrTkJaJleGSXTNR2vSPg5auW6aM6Zz6k6y2yJoco1i1yHuIqaECGJmkU9Yigm8uUg12UkhwlpFqZ1CtbTlqo8JuJfkILEeA28zKmSa7JWor5MQxjbTkMJnUgjIzBFUvYOy7hLQcw8FSJFJYXpeXg8nEEI9Tw7NTrRSc4L4Rbh0Nt.Bb1lc1wjlOeOYJmGjT4L1GwWUC6qKoV47nwVmIBnJbURrawWYvE8xmnB_.ZVKG2GffHvPESF_j_g8R6LNEUoXO7JKVkcWUx2raTK43Q0edAkQUrDrt5kYPQN3cvIryWzt9hQgHjVnoyfWataHVvYmGK72Nq7rJcyb7lciUeqYDqD7ZtW.usvNJwB4o0O7WF5z8SOz3ymAtiC7gBfA6VQzusMpzpCGPbB2fRG_hun3DqZ5HhiWUXi76cjJE8uXOLqI1_NI7v4TFB.81cULzf2S9vFIkJc7X8vdGR_.DigSC7RM.zBZow_Lbf1jxavyBQWxqDo2Icqqtz6ke0KAE2qI4wg_iu2cG.6oFzdfGvilvYyl7lgkNxV1iqQM6qGOKOxE8e7kLNR2CTihOo_kyx12MnQxVfswIoBlkE_Wf.9HkezyaOi6WiqF55cwmw1lPWvb0E52e.LmCkxa4o_r38SKnw3d0QVM930pCL55qzp3F1SvPmUdmVmf3opjm83QRbQ.hw5PaI8cQWeDsQ6L0YNH7aMerqxakhH7B3yuDjv2Rurqq77iVQ4n4WcWMBpoYjoPd4SM5dTEwV_i_eNaL.d1pEzl.MUQ043wTqd9QnS7Pmo8zyjwtM63I2hArucgdmeRBEAxo_9RqtP0rA0m004KDvU6yyXVPZLq1Y7.e.OSg74QsS9iqc4HmSWmDuEYZaczYJiInWI1jLeNDlY2yVy93JfUwwmq8bvkDWKyOAJsn.IkhCh_hw09wE3e0aFP77gEptfc4ThDYqlRAsNiB5EMAktFcHOQOz1cFtcFn1Yt6_ED5xB54XxG6Qz.P7ve0Qu75k27iBy8cb0KcpOW0ICwSoL7swS45ECQSg5HcpjiI4M5_ZPW1r0jKt.ZOgWqZDP_QfHyj_KcBYrr7gZ3j4AIRk7wdqdcmr9t7274U7pZqBchr1tcmRaG6vijicF2h1lyoUv85v8gkdqenjnoDk6PZtpsAdFD0j4S.kYNqloqoF6JkJF1iS9BD9SJABlA7SxI.GGo59yWHdyxJVmbKFwZS0Yf6mOHl85gvgiH8Lf_KaX3K_uQmjl05ksjUTjao0prS4ZGY9rJXNpgu0Hvls8GO3ya1NWvtb9Q9ubI39g35WFTkj3So79O2h4d1fu0NalLPOVsDTyZdKba4bDPofzekwVfWcodj02UQpdATdUTGigktym3UzA3b"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=910f7225fba7241b';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\/7421536980?__cf_chl_rt_tk=9JLDa06lEM8d1Y1_bM1.vI1bHqK3SpRYPyrAAmH7eTg-1739393373-1.0.1.1-osY2luJBc_5bdJ7OOZioofDVrEHI4g5CICcXzmRxGq0" + 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