for Atom and RSS and KML
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.
<!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-829571453301.mit-edu.top",cType: 'managed',cRay: '90f7efbb1a9739af',cH: 'lpbXPg_TFGXrvWSX66QQQyV9f4EU9GWtwUIW2nvyfuw-1739146858-1.2.1.1-3UkJwPXNap_s2dcG1YzvjPEe5pjimnhIkzE3KGOG1D0Md0515COQv8t8nK2GPKZ4',cUPMDTk: "\/post\/3546108927?__cf_chl_tk=o3S9F3eILZ7ldtXJg.HJpUPKcVYb7yd1xZ862aX3WCo-1739146858-1.0.1.1-D4897khqYCex7adNuKABedX9c7KV6K5a88CiQP.5N6Q",cFPWv: 'g',cITimeS: '1739146858',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/3546108927?__cf_chl_f_tk=o3S9F3eILZ7ldtXJg.HJpUPKcVYb7yd1xZ862aX3WCo-1739146858-1.0.1.1-D4897khqYCex7adNuKABedX9c7KV6K5a88CiQP.5N6Q",md: "srxRjfiYoHTinp9JzAo_G3Vfkd6N8hAsU16u.A3Vjeg-1739146858-1.2.1.1-EqVg5lkVdvAG9YhXQitAPX1oz.fe5sgW8rKE2Zb8h8XoS0rJj0isSsgILBx.5mfy7MFtbaDhvcwGw_9vIMIfpvB7adqG1B75IFx9CDx7I8SE5Rnna.ryC9Txx50GdJrKKq17jea4qHCGT7BWVJFk_tr0QpV_fQOz4V2LW16Nh.ntbErGxbE7ltcUNqTpGGOMGj878fnxjeLi7sqRIZHBElG7RutBPjld6Qmqhnb2GH3Z7MDdA8Evc57iYb0e_U3Mql7PL00rS_InIaORK9iFVgKNVGe5WBO6j64W4GIFnVGaTtorkNs5r1OZwkCJKjX3n.9EJZs0HklOkY2XD3Hyr5GlPnGx5eKVRGqxK7bu7_LKfofOVwrFheIeQwGI_YnqhGESuLdqQqpDcC.6w6uYmR_Kg4J32a9U.l5GcieIWYiFvyt3cOlWMl1BGU3t.MqtA6.8XJbqKUWJuVsaq8uTrYWN.nirLxNkau9OtIce38sxHEMpmrakw12SmDprxK3nng9OyVH.jMVt7PSGOkL7CbcF7I9KGN_qgVPJdGZj1olSgi1rDX6zKAenae8johY7iZB3fbvCP9psHeTnEeiztP.66nR5pAjrJYHtYpOW4yXkrkR1rl9FYyZDJLxM84_x8Kb8_WNuuHsgJiKDqUAjvX5FKYeSKS7uiDxNb0NUbkQN0utBXaFhEXdaiwTzcs80L08VNZ.49pCPlOWyxUII5q4UYL3zihBUpXiZtvndSFT7l._q8694A_Sa6eFvoJ.BctUSKsVurqBT4NO4JaS4Clk08jxqmZ2R_4rKTyOPPe82tR1i82hX_y0AgM0e0ZRUF41v2A53Z3xOA34nBrkTLDH62vSracaMAx15WTvgEPYSK8tZERst4qHVm_oZuoHydf1xlqHSAwTqPtoridnAM51Dw8ruFB.FM5Y1gKaU31BZNvtfPlO80csdih2Vy0rBNReDIdHNAygqLaF9R8e_g4wvQCf0HS_mv.UB9UUPK3hAnk0x76RW9D7pEhANtfaniVMCLmE8xZOUwHB0iCmfEGbs.T2lEKyYKp6V4gszJBmkbJ3aD8HQGYKCl.aEL7lKd5upOPmtsJDv3aFQzBmmpiZQ1Uo5QoAQO3Q0JH9vyqTQA2oX6pE_IDWSd2.ku3KgzHpmiYNYCMsr9aY.nxfHCes1wPjR_1VqQtn.ZDCr5XT75ro9_1SDakQdUh_vtdLl9QEbKpla7szp0zS4bbbD2.Zp0.RvvQie24lJpSN0bj.J92dGEUd.YBhr2IQBMPLwy0bMlv5V3a7mVyNzVyCeBxOxufXg5Dx7Jht7QK9rVrkJxJRW1ARIBC67i4UGyb.3FehFtz.8OYb72GPFXBDP7LroF.XOYtVQ_0ybKLkcz9hDxrsqPo5inhUoJxNUhzvmZGRcW1MAn7apl2p7ZH5ZSA9_50USR7sr8WZMUa01cu4DED2VMgQK4.OhyTOEHedHTHN8RU8fESGS5VfdBLHMblAOcVpHALmU0XGKUJ_ERvCRbmzaafoWXjmMzo4g5zFtqPnWRViRZ96Wvn5vtg_3djUDyOzoBcfDuvldEZcI9nZpVvU2VXgJ4Tnln0hIGoKItDZNxc5tmgBE3ONbFYlPMOYudkWXkGAihY3D8t7IKlwXQTQO5wOyNMqzV758mHTm8nd5JR8SGkj2ZOGP8xqKo_Hj.36K2Cv_fX4bWy42Cuz_9G5m4KPLcOSbjV9mfMB.rrfYBrRktEGjXIcVOylafZkoCa8qQr32plrts.0dgqYfgvrfYAtNo7VCYtVMe0xjqJ6c_yJ4yVDcwRBBCSdKxnP7tz0vrhYWX0NNCNnGMC.xxNC7UrZpSaPHOci4NvxhzmbIVhHVgpk6nbEIafT3AWc7_WonG7Bjpg5A0g3PjIAFvyeRfE31I1uflHqu1KS9BYjBTdgUiwdY35npPPpUdUHMaehmyi5kKZ6xRjG9Mchto_bkk88L8ney.RWZdi5MVpuhC_BNqMiF3ghUnncW0Pl8tYJ4RFqiNP2x3OKJ3S90Q8l.hiJ97yee_TE7IV0P7IpnPqi8LaR.w9PdnetUo4mIvk3qH8NfqTx4WFee3.OgNmYK.e8yIE6v2wY1sBmQpL1rBGD2zjBL33Z3dZ7MuofiWltoGDl1t0Qbpfyf5d5.z..DNDpcygnjh3HxH8SSfV_TfYZ5NXx6rkTF_rhgQ5QQJ1FvCPYyUh5nNJwjSLwmmqSIqYP_Phl6Cr9LZMXu",mdrd: "xkamzOcyrDYtjqODUYzKXpd23WDiFxMCM1J6F44Z9l4-1739146858-1.2.1.1-vOe.PQz3IjEoylxUh8w_bM7PrSZ5n202IFC2RIYmUy8XjD.S6QBstl1TFNKsmUZF0KSgvGoCOTW3l_5kP61i3ZRcWu8LQQbKxnAEojRwesQePQk4RIMPBh.3hj2PcEl313VzIOfx2AFMzvIFJ7o8TTZ1EfR8LMv4qOlZHqcusAXCbunplzoVARGo9UR5.da19oKvsq4XZSkKbnslnKCWTVn.HvAkC3X0JYDtcEE1aULUuVi718TWm3BjKSV4UKWnXyX_jjeBoDenwaNToA1WRLGB_8i0ntgN5supbkwVcwP4vtcKUc9XvieS05i2rN.Q.e_.UXlTxApckgHO7JI2Yq5GHP9elEp9.BzNtq07wiDtM8raZwlGWPprVaHSDzNuv.r4wx9Z5xhqitIEkyO.I1jFMfzgnxW7PkzwStN3AAuE5jmsVkf24t.LiaFKXhshk.K5ZXONKUAGUgF5vE1v9vmKz_wxIxAEUETeFLObvvTXGIguJjoXpXYcg7DEXlGB_HLHtQ9BNjDKIatwjUzeLpTUhsxaKqBhEg_jTcdDrGkBWw_7RoHr4IQHzm4W9bQIpYkQqa.aJLOPreSZ4i2I5kYgpLOUrZIRVUC458QCEDKrKEiv3g5Z4__XkiGf52bzzAAAQIgBwL_IioDSD6VPnkIIlxg4SxjHydexpSndq5cXVzg.5wjr0JCCTyZnLO0Kvs1qUfEUzMahBPWbr1JW1grVK4TFduovL3pRLEv_xzS147hgMe1h9l1nRJ.UUnN7BwJsNR7UWUyELIqqX7oUKCIiokZdovubTg3mQBIQvdIGIrEZiaRdppjJWWT8utMDWotC2_QzigOSJQMq7n6Hmpcpy.FOJfrdSBWJ4RomemrgbJHTBgv7RqGLlG7CfXalpsufBQ.cRHNs0uFS.ZQw1Qp8sfTUCxopONcE0vwrhOkjEj8ioAUptNcMLifbGzkADS_oIplgByqGAuc4rsPcbWDJcsXQ93U6A.Ehm2Xt5efGidh53i33SWTMaHCEc2udsS4hoTZp9fi0dlWnsQMyfLIzWcXqq.1Km.QYq5rkUfngAIvVUydkjHdELm9S2YZaEP2bl6pwePRg_NqAzGeTlDHm0t896PqfpBx.4HoVUuyvVIe0Nho6fwgs1CkNtIijtf50S7YyqqDtzM4AQSzyCSkxN00ZI2YTuLGJ2H2.UFjjv94qGzlpSMSNii7r.nfkjBzPLZCml4FEENt2RlhNC_TcMs3Scq2m1CqxXinMo1pgW2XWNum1rOas0nHxxkxHxl9WJErtdg.GxEaAzTbQvOpx9I56lAvfGdf2dIOOnHqmMEg4Z3KYdeWkNSbvFlwF.ADPRdXUFg8mvgpZGGeGGLhRbTYXwcRS3eu9UjcL0D4c4kMiZS49kHe1Lxm0g8ZLDHA1Ra_OlswNljKR9m5eML3s_tw112V3IgCe7rSbnmJZH0VZtpRrTKkLdPqKwjrBFrG9BXQWEB7ugZSSlvvCLDisZtfqjgULhzykiPrErjJi0sBIH.oVz2lGDvEGluWPeEV9kpr9yAlZhzb_RwKhnTao8I3Nv3Ga2D7.lyHvhlEVwCNvThBlrIz7Alua4YwxWGxPubjuH2qZ8sbQqRhhFEwT.iV2cN.BDtZTPyXB0XA42UDoG8tvMUEyZUl73WCEEOeVbAe8oltIqWlXGS7MUNdu.8ov2XI6k2X.McbzpjDANY_kk39yPwX.hFDcA81.ckUN7RF3lgt3Ws7kp7h49lGJ2cojVwnvcZlm2I296oEC5JUnYU_2ROjCyYOdmx1SzeKn15o525h0DB5FG2fc1JaQhNyYhwVJDJ2kz4cneUaLJgzFylbIAdo3VLdow4_s"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f7efbb1a9739af';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\/3546108927?__cf_chl_rt_tk=o3S9F3eILZ7ldtXJg.HJpUPKcVYb7yd1xZ862aX3WCo-1739146858-1.0.1.1-D4897khqYCex7adNuKABedX9c7KV6K5a88CiQP.5N6Q" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>
Home · About · News · Docs · Terms