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://www.keyanalyzer.com/

  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;padding-left:1.5rem;max-width:60rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{line-height:2.25rem;font-size:1.5rem;font-weight:500}@media (width <= 720px){.h2{line-height:1.5rem;font-size:1.25rem}}#challenge-error-text{background-image:url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMiIgaGVpZ2h0PSIzMiIgZmlsbD0ibm9uZSI+PHBhdGggZmlsbD0iI0IyMEYwMyIgZD0iTTE2IDNhMTMgMTMgMCAxIDAgMTMgMTNBMTMuMDE1IDEzLjAxNSAwIDAgMCAxNiAzbTAgMjRhMTEgMTEgMCAxIDEgMTEtMTEgMTEuMDEgMTEuMDEgMCAwIDEtMTEgMTEiLz48cGF0aCBmaWxsPSIjQjIwRjAzIiBkPSJNMTcuMDM4IDE4LjYxNUgxNC44N0wxNC41NjMgOS41aDIuNzgzem0tMS4wODQgMS40MjdxLjY2IDAgMS4wNTcuMzg4LjQwNy4zODkuNDA3Ljk5NCAwIC41OTYtLjQwNy45ODQtLjM5Ny4zOS0xLjA1Ny4zODktLjY1IDAtMS4wNTYtLjM4OS0uMzk4LS4zODktLjM5OC0uOTg0IDAtLjU5Ny4zOTgtLjk4NS40MDYtLjM5NyAxLjA1Ni0uMzk3Ii8+PC9zdmc+");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="360"></head><body><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: 'www.keyanalyzer.com',cType: 'managed',cRay: '97f049f5dc0c5956',cH: 'cgJEd1wTQZfu1RqKsUNG7ae_4cywSnPn0QRLJv2uZeg-1757857150-1.2.1.1-Z3RPYPahCxiZabuWw9arZ0bJiD4g3yaqJYeP3.YEAwW2k0tArLubx3BHfgkxY1SN',cUPMDTk:"\/?__cf_chl_tk=p5hDqmVxoUZaiyqP2hmHIaveOfyP0CcsKCXj71MdHr8-1757857150-1.0.1.1-QSyRUax7aGo7HP5u2529SckurTiZZHIXTaaI3ZmsxUI",cFPWv: 'g',cITimeS: '1757857150',cTplC:0,cTplV:5,cTplB: 'cf',fa:"\/?__cf_chl_f_tk=p5hDqmVxoUZaiyqP2hmHIaveOfyP0CcsKCXj71MdHr8-1757857150-1.0.1.1-QSyRUax7aGo7HP5u2529SckurTiZZHIXTaaI3ZmsxUI",md: 'vL5ztQbnIrO4rasR9o621Mi7r10I7Ly63Vc_lx_9atg-1757857150-1.2.1.1-RoBNXIt61Wy1fUOhWWLTAKxCpPH4F.C3x_uT.Plpphe7XRfAOywAeUFUhaUVZIp814QRjE53p7K9cCgmhe953g2p6fPnY8_u3T1XGZ4rtPkApIwrXA_EeNp8ALzgGvpFrqmIOyYGkBgzG18cGISs4p95GwpB75pKbBpZByuFHfHi0Psej5KjnWcAPkAdwahMfTo_CW03a1eBh2puc876ZDJCJQo.WEDi5eDgLUeNkJcPIhrZfBpAe.vBWL3kTfXuX76FmZ4yW0.HO3UiFUQ3FCFeCsDR3p11YwUHmNeLl5.sBBnxa9.hxFiwMhWexNg3j6eyKcwMJ8tcxHCN7_0XYV2YmBo7pCfqeQ97EsPLgoyFhLqm8paaMzZousdMHFnSzYAca_UnwKhxsqZ.xlczRTObQaWClpS891bN.LZo426yOOpfrNUaCpv.uUGgwKTz8GuHDJ2gFk_U_Sg0B9a91PuSghgdlR.Tk6xdXQ1jtA_PmHkWJVzY4.RwBzYHusEImn_Ea78cDzVzXdJdO2mhXMK1_2R6w81N64e4gT0N6njBCITSBsnrBIHQ3sKHhWAz8USIVaMriQcZ.jKfcE81AOg4MSU6aMydjRsyPMRV7C4._MGTmi.I_ieEfH_TZuOBcX_wOm0k2h5GSvQqiBZtTo7XmVRVg3tXXHkZmErz7r_l0LDiUV631IRbU5u4EAuXSymsYjNFw1YRzsmnY.i6a2HieEI8GaX2cTsHtSAAPZvj76oKCEjpXCEvflxAOUQNaYGkYtn62IPJ_hYqbJNN3yzAYgaE4ORZJTBOR0e6nO4rHSRVQYAETqWnY6oTn9nG',mdrd: 'nytniql8gGTaH3NDbmGN5uwPnTpv1IMh2Lf3ysafwoA-1757857150-1.2.1.1-NJ_ogQqbZpSlAR5sppD9.XebgTl1TJw16Gz3uu5cfyq3D2mZx3iT2DTMiU2Q8Yd6u8MhOgut.3G_5PvVLlyADfFXXlXfgR843PKKHvsPCyOTNYmlxgAimOfnRuwbQ5O4GTMc7HcTmpoMco7U3cqhmSn3KmVOGLAv15sEnT_7EtzIIYHE.1exgIZtFwOW1YBJCqUYd7YQkMBRuW198PWj88oXyeEqGiyzRNIPmAr4SiaUr9EcZ0cfbli6.PjtkYL8zImYA5G68JRYrbCBJm.vBMLqCkHt9xBP81eWqLf2sdIbgJdGUfqnkECqWJKYyy.k3EVRPHxuH7hK75E0F3xwaXCRLqmm9NCd7DTeNBy6A.O0tNn5kgb5e01cwwZ7kSp7wqoaqc_Ts6oyReTcwIRdzkaA4KLyY6Tbd1nmnIMsDRQqAmD6aVhSaV_mYni6yPI752h6geb2W9ccO.QwSBURsy0tb_fkFBdNXnpzYPEB9rydAbRQJiSdsOZpa6AyugnBScCBWeZJE.3F_cnIKP9EYn1ErwH0YedFt66cLJb8cwP70AABK6U..FY2RJcwOXLi2ybAAxHouUosocC8AO1lN9YfFLlI8fJbuwuFEEd6t_jeY3sBjOeEWfT4E_vgzUDKYNCcMJKZdlb.1W76Ff0kxsu2FIN3buvXJWLxrrJq_e.O2yDpQAl27fA55qw48yblhbE4xTcPs95Zn.4ulX1evGuAu7bjOy0y4Q5oyxQAigZ8LxD1JYGrikE4KJhWfoOelmh.8iv0n_6qAm3erFm09B92aI9UDsUBvSBUEZOObnGIhwR08K0iWbc6ThPwjkurnrlAYvszDQF5yS9CRxGMxFXTpD4CQMo.xv2PW_UmmBTWQVzwrSHKL5Ez_xv2sdscOHWhdpJiMbJz7MPCx3pTImYncpWsBc11uB1.4REkdZ7Ei7yWfhN1wUtIwwekj2GJg3JLxMD7xYz7S36DkxKtgwbev0JZoaU4fC.yQIDVn5dzl8FHmBQSyKv1Axa_cGKcNlBA8DIPDEjWg3ctIV9eWLXFYKUrYTLK28segYfpoBpW6DEABTDiupZy_buXoII83vuJRACoG0Cu0S0yjWOz3FkouweionqyUEoik8YTtuGZyJPESdjy27SgMJv_ehY.6Nj8QlLNu0SAwsoZyEoeX777.p55TRn6wXVonLznJ8Wvpkj6Wo1zjoMOEIjM400ymC.D6SQzgMJLZy9rqPg7Dz1MUhzfbLuPSsl5Uzmy2oLCjaybqNoKgipXj6bekF9mbWJQ5PRYsuMdW9rCnp4fjnqI2tjFyrJ54gKt9_rRjk.axWJZMOPDcl1XVjZ56H3S7ElA036uTyTBoebw.JavfZRKaSk7UL.cVZGd8zELc0ovVXrnj91IXJkBqqQjI.VPfGog4c_a4YgeVWsffTYYGMfURg7L72MEpU7i_f3o9qK9pLQL6yQCuUJjkZUkISQd3joXAR2QPz_cLgsvdXYGDVEZOQ6dpHf0Si_oYWsGZit4_dJkoYppNJcjqUfDbSWTb78OruNVcv2cOS51jvSmYYBnRjaXLy3nGT13O7kh5qb_DgcDg9uzs2cavtt28rc9Hg4BYXmxVc.Lh3O8uCkFJIl6AmPnHsymjrw.fO0hJfq4nKOjonNjVBASLm3w4oAEbZSIUl29QqSo4uYo0mo.Gx5NyinSrmhhnq1E3pGaf4qWAJ87Hg9_b3zKS8BEMXWrKMMJvgSUswawbqZkPb3qXpr7t47.gPMrUiy0yLHruzvaL0yB3iliC4uVTmPZVGEywfTIduXiEP_xicdkUIh_NcJEwuPPCh3Oz_XRrEI8j0JVi9zbNcZBznhJFn2aGdxE_geuDGYhz9f0TpgQGrFURKqeXEEoAgbRjMakgs968hw',};var a = document.createElement('script');a.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=97f049f5dc0c5956';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,"\/?__cf_chl_rt_tk=p5hDqmVxoUZaiyqP2hmHIaveOfyP0CcsKCXj71MdHr8-1757857150-1.0.1.1-QSyRUax7aGo7HP5u2529SckurTiZZHIXTaaI3ZmsxUI"+ window._cf_chl_opt.cOgUHash);a.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(a);}());</script></body></html>
Copyright © 2002-9 Sam Ruby, Mark Pilgrim, Joseph Walton, and Phil Ringnalda