1. General Results, most used to calculate the result A name "zoom.us" is domain, public suffix is ".us", top-level-domain is ".us", top-level-domain-type is "country-code", Country is United States of America (the), tld-manager is "NeuStar, Inc.", num .us-domains preloaded: 611 (complete: 221801) A Good: All ip addresses are public addresses A Good: Minimal 2 ip addresses per domain name found: www.zoom.us has 2 different ip addresses (authoritative). A Good: Minimal 2 ip addresses per domain name found: zoom.us has 2 different ip addresses (authoritative). A Good: Ipv4 and Ipv6 addresses per domain name found: www.zoom.us has 1 ipv4, 1 ipv6 addresses A Good: Ipv4 and Ipv6 addresses per domain name found: zoom.us has 1 ipv4, 1 ipv6 addresses A Good: No asked Authoritative Name Server had a timeout A Good: destination is https A Good: every cookie sent via https is marked as secure HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List. A Good: Some urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset):6 complete Content-Type - header (8 urls) https://170.114.52.2/ 170.114.52.2 Url with incomplete Content-Type - header - missing charset https://[2407:30c0:0182:0000:0000:0000:aa72:3402]/ 2407:30c0:182::aa72:3402 Url with incomplete Content-Type - header - missing charset B https://zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de Missing HSTS-Header B https://www.zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de Missing HSTS-Header http://zoom.us/ 170.114.52.2 __cf_bm=wu0Bo1tIzGqH6OIdpNQ8Z6rxu1EekeTZ8_RuZiH.Bvg-1685794623-0-AcCTkJWuuxFS7T/rHH1/h18W8qujBtLzcIq1QVHWzakeBH27FFFIKg5uhLIpMyru+Lmf6P1FT9nbyBUeBnpbp2A=; path=/; expires=Sat, 03-Jun-23 12:47:03 GMT; domain=.zoom.us; HttpOnly; SameSite=None Fatal: Cookie sent via http. Never send Cookies / Session-Cookies via http. If a user uses an insecure WLan and if the same cookie is used to managed the authenticated session, it's possible to hack that user. Same with HttpOnly - without https that's only decorative. http://zoom.us/ 2407:30c0:182::aa72:3402 __cf_bm=udn1HlNv09AxfyzgeohauTw4.3yCz2ejiu0rY7eonVs-1685794623-0-AXuBIPuJcRHUFNL29eXQxTkaxuKV4shLColEQJxhb48Snmo+L6J0j8hwTnPLYVpQm9T6Yf9qMKF2jmnUJNJ7dXQ=; path=/; expires=Sat, 03-Jun-23 12:47:03 GMT; domain=.zoom.us; HttpOnly; SameSite=None Fatal: Cookie sent via http. Never send Cookies / Session-Cookies via http. If a user uses an insecure WLan and if the same cookie is used to managed the authenticated session, it's possible to hack that user. Same with HttpOnly - without https that's only decorative. http://www.zoom.us/ 170.114.52.2 __cf_bm=xVamNSvhgfPr9797ShKLP_WF.0QEXDH6mhmiQFoLljs-1685794622-0-ARYpbDoRfTkDvNVvg3FJlAuQfyKllBB+Br4XLpID3LDu/F1pW534qT60BC5DK5RvPCelAmEa/nZSo1AVl8dfjdE=; path=/; expires=Sat, 03-Jun-23 12:47:02 GMT; domain=.zoom.us; HttpOnly; SameSite=None Fatal: Cookie sent via http. Never send Cookies / Session-Cookies via http. If a user uses an insecure WLan and if the same cookie is used to managed the authenticated session, it's possible to hack that user. Same with HttpOnly - without https that's only decorative. http://www.zoom.us/ 2407:30c0:182::aa72:3402 __cf_bm=tyPksebcNJSlh6T3PO7Cfp1HbNDnoOE9meOuuFAuhP4-1685794622-0-ATeCq3JkB4lqyqZZcFSVwmg1vnjUi05wfdS9TI0TRvyYZIFpQeRsUP3ptUMat++ClYTfdqVbI8HoY0FAqhe+cbQ=; path=/; expires=Sat, 03-Jun-23 12:47:02 GMT; domain=.zoom.us; HttpOnly; SameSite=None Fatal: Cookie sent via http. Never send Cookies / Session-Cookies via http. If a user uses an insecure WLan and if the same cookie is used to managed the authenticated session, it's possible to hack that user. Same with HttpOnly - without https that's only decorative. http://zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 170.114.52.2 __cf_bm=7bi2EbCmURm40ZnYkjPhekJ.6bjO3vUOfFoPtHFxqAs-1685794640-0-AV7fpsWIxw2ThGjZQSTupO8wFqvOF92FoVSmSpXe51YMjJBKxa3DDTcWu+InD+Nhb36YNtoxf4hEwMymTHbr8O8=; path=/; expires=Sat, 03-Jun-23 12:47:20 GMT; domain=.zoom.us; HttpOnly; SameSite=None Fatal: Cookie sent via http. Never send Cookies / Session-Cookies via http. If a user uses an insecure WLan and if the same cookie is used to managed the authenticated session, it's possible to hack that user. Same with HttpOnly - without https that's only decorative. http://zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2407:30c0:182::aa72:3402 __cf_bm=qkGn8jSFRcznL4uMrd6ye0mqYWXU7uCE07uq3tuSdbM-1685794640-0-AWdzKZaguI3vMvEenpJTvcsFxfBM0bRadNKXsbvX2holv2Y3TQ4LFg5k8ZHs2ba99Ri6Clj7Oy/kkrnsgR+yqe4=; path=/; expires=Sat, 03-Jun-23 12:47:20 GMT; domain=.zoom.us; HttpOnly; SameSite=None Fatal: Cookie sent via http. Never send Cookies / Session-Cookies via http. If a user uses an insecure WLan and if the same cookie is used to managed the authenticated session, it's possible to hack that user. Same with HttpOnly - without https that's only decorative. http://www.zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 170.114.52.2 __cf_bm=q7e3eR3vHlRpa27PJMZNAH3OFDXGu8_DjSf63Z02tLY-1685794639-0-AbiAiAaUd7z3Q7FTLHSyTPXT+NIPLxViDECkRSwUZT2aA/WPoIRqquXozfmke1Ev2NJoGG7Fd/h0v12WNbwl6DI=; path=/; expires=Sat, 03-Jun-23 12:47:19 GMT; domain=.zoom.us; HttpOnly; SameSite=None Fatal: Cookie sent via http. Never send Cookies / Session-Cookies via http. If a user uses an insecure WLan and if the same cookie is used to managed the authenticated session, it's possible to hack that user. Same with HttpOnly - without https that's only decorative. http://www.zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2407:30c0:182::aa72:3402 __cf_bm=YsjmOoR712g1uB2f_AFdPqKXMIPORMn2H4RIe5AxPS0-1685794640-0-AfRgPSYk4DOXDAv2pFkE1UG3cgNnEksMx4KcEI0iMVDpr95/JlIJhyBj0Ew4NbdZmmUSoP9+BRDnnVGDLifzk0I=; path=/; expires=Sat, 03-Jun-23 12:47:20 GMT; domain=.zoom.us; HttpOnly; SameSite=None Fatal: Cookie sent via http. Never send Cookies / Session-Cookies via http. If a user uses an insecure WLan and if the same cookie is used to managed the authenticated session, it's possible to hack that user. Same with HttpOnly - without https that's only decorative. B https://zoom.us/ 170.114.52.2 zm_aid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/ 170.114.52.2 zm_haid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/ 170.114.52.2 zm_tmaid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/ 170.114.52.2 zm_htmaid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/ 170.114.52.2 _zm_ssid=aw1_c_IcxxIhd7QKOiP2EhxT-kvw; Domain=.zoom.us; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/ 170.114.52.2 cred=B82B16B4D535324CF3DDDD6E25A1862D; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/ 170.114.52.2 _zm_mtk_guid=acdbab83491d43c08cab249752e196aa; Domain=.zoom.us; Expires=Mon, 02-Jun-2025 12:17:12 GMT; Path=/; Secure Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/ 170.114.52.2 _zm_csp_script_nonce=RJickjwuRx6AVNiFZunxLw; Domain=.zoom.us; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/ 170.114.52.2 _zm_currency=EUR; Domain=.zoom.us; Expires=Sun, 04-Jun-2023 12:17:12 GMT; Path=/; Secure Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/ 170.114.52.2 _zm_visitor_guid=acdbab83491d43c08cab249752e196aa; Domain=.zoom.us; Expires=Sun, 02-Jun-2024 12:17:12 GMT; Path=/; Secure Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/ 2407:30c0:182::aa72:3402 zm_aid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/ 2407:30c0:182::aa72:3402 zm_haid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/ 2407:30c0:182::aa72:3402 zm_tmaid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/ 2407:30c0:182::aa72:3402 zm_htmaid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/ 2407:30c0:182::aa72:3402 _zm_ssid=aw1_c_f1BxDdYYSMaFS9uxQKEaWw; Domain=.zoom.us; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/ 2407:30c0:182::aa72:3402 cred=E4A61BB0E6F93C9B90FC8A8F08AC56A6; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/ 2407:30c0:182::aa72:3402 _zm_mtk_guid=9f90e37c640146f58e102a72c6eadcf4; Domain=.zoom.us; Expires=Mon, 02-Jun-2025 12:17:16 GMT; Path=/; Secure Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/ 2407:30c0:182::aa72:3402 _zm_csp_script_nonce=0v2daHjGQTaSuKYCYmjGig; Domain=.zoom.us; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/ 2407:30c0:182::aa72:3402 _zm_currency=EUR; Domain=.zoom.us; Expires=Sun, 04-Jun-2023 12:17:16 GMT; Path=/; Secure Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/ 2407:30c0:182::aa72:3402 _zm_visitor_guid=9f90e37c640146f58e102a72c6eadcf4; Domain=.zoom.us; Expires=Sun, 02-Jun-2024 12:17:16 GMT; Path=/; Secure Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/ 170.114.52.2 zm_aid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/ 170.114.52.2 zm_haid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/ 170.114.52.2 zm_tmaid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/ 170.114.52.2 zm_htmaid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/ 170.114.52.2 _zm_ssid=aw1_c_ZAc45phrTueVmkPrZUwGiA; Domain=.zoom.us; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/ 170.114.52.2 cred=34645DFE708D782D7B6F93A7B6407CE8; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/ 170.114.52.2 _zm_mtk_guid=1ba36a7c1e2d4cdc926a57574eabf0bf; Domain=.zoom.us; Expires=Mon, 02-Jun-2025 12:17:03 GMT; Path=/; Secure Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/ 170.114.52.2 _zm_csp_script_nonce=C5iZ_M-RQT6uGdjjPUD7og; Domain=.zoom.us; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/ 170.114.52.2 _zm_currency=EUR; Domain=.zoom.us; Expires=Sun, 04-Jun-2023 12:17:03 GMT; Path=/; Secure Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/ 170.114.52.2 _zm_visitor_guid=1ba36a7c1e2d4cdc926a57574eabf0bf; Domain=.zoom.us; Expires=Sun, 02-Jun-2024 12:17:03 GMT; Path=/; Secure Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/ 2407:30c0:182::aa72:3402 zm_aid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/ 2407:30c0:182::aa72:3402 zm_haid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/ 2407:30c0:182::aa72:3402 zm_tmaid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/ 2407:30c0:182::aa72:3402 zm_htmaid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/ 2407:30c0:182::aa72:3402 _zm_ssid=aw1_c_X8b254SWT8-fxVAZfNsvyg; Domain=.zoom.us; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/ 2407:30c0:182::aa72:3402 cred=0F4C9D4FFC79072A94BFC93FE941FE76; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/ 2407:30c0:182::aa72:3402 _zm_mtk_guid=171239c3400c495f95a89879f7e7f264; Domain=.zoom.us; Expires=Mon, 02-Jun-2025 12:17:08 GMT; Path=/; Secure Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/ 2407:30c0:182::aa72:3402 _zm_csp_script_nonce=0akMcgMwQ4eEOMzUMopzqw; Domain=.zoom.us; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/ 2407:30c0:182::aa72:3402 _zm_currency=EUR; Domain=.zoom.us; Expires=Sun, 04-Jun-2023 12:17:08 GMT; Path=/; Secure Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/ 2407:30c0:182::aa72:3402 _zm_visitor_guid=171239c3400c495f95a89879f7e7f264; Domain=.zoom.us; Expires=Sun, 02-Jun-2024 12:17:08 GMT; Path=/; Secure Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de zm_aid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de zm_haid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de zm_tmaid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de zm_htmaid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de _zm_ssid=aw1_c_qilMI-9VS8-6j8572871Zw; Domain=.zoom.us; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de cred=2EF3997D2C70BCEA19E221295B4A0E47; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de _zm_ctaid=LwUf4D-hShiNkCnv1ogOlA.1685794651811.60c6e2e32d66cbd736f8336fd0edc2e6; Domain=.zoom.us; Expires=Sat, 03-Jun-2023 14:17:31 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de _zm_chtaid=292; Domain=.zoom.us; Expires=Sat, 03-Jun-2023 14:17:31 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de _zm_mtk_guid=e663d2c05abc40b3bbb3476d9086c441; Domain=.zoom.us; Expires=Mon, 02-Jun-2025 12:17:31 GMT; Path=/; Secure Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de _zm_ctaid=5DMbKGEYSfSpuo90o3BCig.1685794651816.14d44f17502d9d2941f718e1cab17fb3; Domain=.zoom.us; Expires=Sat, 03-Jun-2023 14:17:31 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de _zm_chtaid=952; Domain=.zoom.us; Expires=Sat, 03-Jun-2023 14:17:31 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de _zm_mtk_guid=0a5f1b7c59a94f698caa4d18e077c229; Domain=.zoom.us; Expires=Mon, 02-Jun-2025 12:17:31 GMT; Path=/; Secure Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de _zm_csp_script_nonce=4EhWnf1RSRS9SeVlUcwe7w; Domain=.zoom.us; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de _zm_currency=EUR; Domain=.zoom.us; Expires=Sun, 04-Jun-2023 12:17:31 GMT; Path=/; Secure Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de _zm_visitor_guid=0a5f1b7c59a94f698caa4d18e077c229; Domain=.zoom.us; Expires=Sun, 02-Jun-2024 12:17:31 GMT; Path=/; Secure Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de zm_aid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de zm_haid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de zm_tmaid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de zm_htmaid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de _zm_ssid=aw1_c_zYHdrKIURZ241wp7by3qow; Domain=.zoom.us; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de cred=896B0AC9C16A3966B7F8B0D2C02706FE; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de _zm_ctaid=gU7Lioe5TtKVbHUTw0FVYw.1685794648090.89d4e5e1bc4b70f8adb40ac764141778; Domain=.zoom.us; Expires=Sat, 03-Jun-2023 14:17:28 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de _zm_chtaid=992; Domain=.zoom.us; Expires=Sat, 03-Jun-2023 14:17:28 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de _zm_mtk_guid=c4ba016f9f8c478ab57b8710829630e6; Domain=.zoom.us; Expires=Mon, 02-Jun-2025 12:17:28 GMT; Path=/; Secure Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de _zm_ctaid=bfeb4JyNQwWFnhjoNf8PUg.1685794648093.ac101934103ac8d68db153ace478da89; Domain=.zoom.us; Expires=Sat, 03-Jun-2023 14:17:28 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de _zm_chtaid=434; Domain=.zoom.us; Expires=Sat, 03-Jun-2023 14:17:28 GMT; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de _zm_mtk_guid=db5cf03c620f426ba4bf7a7986cbfeec; Domain=.zoom.us; Expires=Mon, 02-Jun-2025 12:17:28 GMT; Path=/; Secure Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de _zm_csp_script_nonce=VwUXiDRIS8CcxQH1kNX0Zg; Domain=.zoom.us; Path=/; Secure; HttpOnly Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de _zm_currency=EUR; Domain=.zoom.us; Expires=Sun, 04-Jun-2023 12:17:28 GMT; Path=/; Secure Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. B https://www.zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de _zm_visitor_guid=db5cf03c620f426ba4bf7a7986cbfeec; Domain=.zoom.us; Expires=Sun, 02-Jun-2024 12:17:28 GMT; Path=/; Secure Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value. C Error - no preferred version www or non-www. Select one version as preferred version, then add a redirect https + not-preferred version to https + preferred version. Perhaps in your port 443 vHost something like "RewriteEngine on" + "RewriteCond %{SERVER_NAME} = example.com" + "ReWriteRule ^ https://www.example.com%{REQUEST_URI} [END,QSA,R=permanent]" (three rows, without the "). That should create a redirect https + example.com ⇒ https + www.example.com. Or switch both values to use the non-www version as your preferred version. C Error - more then one version with Http-Status 200. After all redirects, all users (and search engines) should see the same https url: Non-www or www, but not both with http status 200. M https://170.114.52.2/ 170.114.52.2 Misconfiguration - main pages should never send http status 400 - 499 M https://[2407:30c0:0182:0000:0000:0000:aa72:3402]/ 2407:30c0:182::aa72:3402 Misconfiguration - main pages should never send http status 400 - 499 N https://170.114.52.2/ 170.114.52.2 Error - Certificate isn't trusted, RemoteCertificateNameMismatch N https://[2407:30c0:0182:0000:0000:0000:aa72:3402]/ 2407:30c0:182::aa72:3402 Error - Certificate isn't trusted, RemoteCertificateNameMismatch A Good: More then one ip address per domain name found, checking all ip addresses the same http status and the same certificate found: Domain www.zoom.us, 2 ip addresses. A Good: More then one ip address per domain name found, checking all ip addresses the same http status and the same certificate found: Domain zoom.us, 2 ip addresses. Info: Checking all ip addresses of that domain without sending the hostname only one certificate found. Checking all ip addresses and sending the hostname only one certificate found. Both certificates are the same. So that domain doesn't require Server Name Indication (SNI), it's the primary certificate of that set of ip addresses.: Domain www.zoom.us, 2 ip addresses, 1 different http results. Info: Checking all ip addresses of that domain without sending the hostname only one certificate found. Checking all ip addresses and sending the hostname only one certificate found. Both certificates are the same. So that domain doesn't require Server Name Indication (SNI), it's the primary certificate of that set of ip addresses.: Domain zoom.us, 2 ip addresses, 1 different http results. B No _mta-sts TXT record found (mta-sts: Mail Transfer Agent Strict Transport Security - see RFC 8461). Read the result of server-daten.de (Url-Checks, Comments, Connections and DomainServiceRecords) to see a complete definition. Domainname: _mta-sts.zoom.us 2. Header-Checks (alpha, started 2022-10-23, may be buggy / incomplete) A zoom.us 170.114.52.2 Content-Security-Policy Ok: Header without syntax errors found: upgrade-insecure-requests; default-src https://*.zoom.us https://zoom.us blob: 'self'; img-src https: about: blob: data: 'self'; style-src https: safari-extension: chrome-extension: 'unsafe-inline' data: 'self'; font-src https: safari-extension: chrome-extension: blob: data: 'self'; connect-src * about: blob: data: 'self'; media-src * rtmp: blob: data: 'self'; frame-src https: ms-appx-web: zoommtg: zoomus: wvjbscheme: data: blob: 'self'; object-src 'none'; base-uri 'none';script-src 'self' 'strict-dynamic' 'nonce-RJickjwuRx6AVNiFZunxLw' 'unsafe-inline' blob: https:; F Bad: default-src with "*" or a scheme found. That allows too much, don't use such a definition. A Good: default-src without 'unsafe-inline' or 'unsave-eval'. E Bad: No form-action directive found. Use one to limit the form - action - destinations. form-action is a navigation-directive, so default-src isn't used. E Bad: No frame-ancestors directive found. Use one to limit the pages allowed to use this page in frame / iframe / object / embed / applet. frame-ancestors is a navigation-directive, so default-src isn't used. A Good: base-uri directive found. That limits the URLs which can be used in a document's <base> element. Because it's a document directive, default-src isn't used, so an own directive is required. A Good: object-src only with 'none' or 'self' found, no scheme, no other urls. That blocks object / embed / applet - elements. C Critical: script-src with 'unsafe-inline' or 'unsafe-eval' and with a nonce found. Ok, better with the nonce, but not really good. Don't use 'unsafe' - declarations. F Critical: script-src with * or a scheme found. Never allow wildcard - sources. A Good: script-src without data: schema found. Why is this important? The data: schema allows hidden code injection. Insert <script src='data:application/javascript;base64,YWxlcnQoJ1hTUycpOw=='></script> in your page and see what happens. F Dangerous: frame-src is defined and allows the data: schema. That allows hidden code injection. Insert <iframe src="data:text/html;charset=utf-8;base64,PCFET0NUWVBFIGh0bWw+PGh0bWw+PGJvZHk+PHA+YmVmb3JlPHNjcmlwdCB0eXBlPSJ0ZXh0L2phdmFzY3JpcHQiPmFsZXJ0KCdYU1MnKTwvc2NyaXB0PjxwPmFmdGVyPC9ib2R5PjwvaHRtbD4="></iframe> in your page and see what happens. A Ok: Nonce found. A report-to Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=7TFktTvgQwS1hhVSrENN%2FSiQ%2FZb%2FSwNrZdQR0do274NCFl5eG3SKD1lKddW9oZD3NtfZL%2FfxlpgtVmLUARJ9LxLXIwALxBJlXuMf0t3MpU20TJHP8tf%2BvTY%3D"}],"group":"cf-nel","max_age":604800} A Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=7TFktTvgQwS1hhVSrENN%2FSiQ%2FZb%2FSwNrZdQR0do274NCFl5eG3SKD1lKddW9oZD3NtfZL%2FfxlpgtVmLUARJ9LxLXIwALxBJlXuMf0t3MpU20TJHP8tf%2BvTY%3D"}],"group":"cf-nel","max_age":604800} A X-Content-Type-Options Ok: Header without syntax errors found: nosniff A Referrer-Policy Ok: Header without syntax errors found: strict-origin-when-cross-origin A X-Frame-Options Ok: Header without syntax errors found: SAMEORIGIN B Info: Header is deprecated. May not longer work in modern browsers. SAMEORIGIN. Better solution: Use a Content-Security-Policy Header with a frame-ancestors directive. DENY - use 'none', SAMEORIGIN - use 'self'. If you want to allow some domains to frame your page, add these urls. A X-Xss-Protection Ok: Header without syntax errors found: 1; mode=block B Info: Header is deprecated. May not longer work in modern browsers. 1; mode=block A zoom.us 2407:30c0:182::aa72:3402 Content-Security-Policy Ok: Header without syntax errors found: upgrade-insecure-requests; default-src https://*.zoom.us https://zoom.us blob: 'self'; img-src https: about: blob: data: 'self'; style-src https: safari-extension: chrome-extension: 'unsafe-inline' data: 'self'; font-src https: safari-extension: chrome-extension: blob: data: 'self'; connect-src * about: blob: data: 'self'; media-src * rtmp: blob: data: 'self'; frame-src https: ms-appx-web: zoommtg: zoomus: wvjbscheme: data: blob: 'self'; object-src 'none'; base-uri 'none';script-src 'self' 'strict-dynamic' 'nonce-0v2daHjGQTaSuKYCYmjGig' 'unsafe-inline' blob: https:; F Bad: default-src with "*" or a scheme found. That allows too much, don't use such a definition. A Good: default-src without 'unsafe-inline' or 'unsave-eval'. E Bad: No form-action directive found. Use one to limit the form - action - destinations. form-action is a navigation-directive, so default-src isn't used. E Bad: No frame-ancestors directive found. Use one to limit the pages allowed to use this page in frame / iframe / object / embed / applet. frame-ancestors is a navigation-directive, so default-src isn't used. A Good: base-uri directive found. That limits the URLs which can be used in a document's <base> element. Because it's a document directive, default-src isn't used, so an own directive is required. A Good: object-src only with 'none' or 'self' found, no scheme, no other urls. That blocks object / embed / applet - elements. C Critical: script-src with 'unsafe-inline' or 'unsafe-eval' and with a nonce found. Ok, better with the nonce, but not really good. Don't use 'unsafe' - declarations. F Critical: script-src with * or a scheme found. Never allow wildcard - sources. A Good: script-src without data: schema found. Why is this important? The data: schema allows hidden code injection. Insert <script src='data:application/javascript;base64,YWxlcnQoJ1hTUycpOw=='></script> in your page and see what happens. F Dangerous: frame-src is defined and allows the data: schema. That allows hidden code injection. Insert <iframe src="data:text/html;charset=utf-8;base64,PCFET0NUWVBFIGh0bWw+PGh0bWw+PGJvZHk+PHA+YmVmb3JlPHNjcmlwdCB0eXBlPSJ0ZXh0L2phdmFzY3JpcHQiPmFsZXJ0KCdYU1MnKTwvc2NyaXB0PjxwPmFmdGVyPC9ib2R5PjwvaHRtbD4="></iframe> in your page and see what happens. A Ok: Nonce found. A report-to Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=QX5ZRtjSzOIzVurfg%2FMqyfcWvPsYZ8IDl0xihkmpFTfU5pCAavL7YUqwVtTK7rkserG8BkM9hJD2DWFu0Dw1j4OVchEA7vWJ4OwDbIuoHijL87J6VuxeYsHPSzjDt9iHzeeZxJc%3D"}],"group":"cf-nel","max_age":604800} A Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=QX5ZRtjSzOIzVurfg%2FMqyfcWvPsYZ8IDl0xihkmpFTfU5pCAavL7YUqwVtTK7rkserG8BkM9hJD2DWFu0Dw1j4OVchEA7vWJ4OwDbIuoHijL87J6VuxeYsHPSzjDt9iHzeeZxJc%3D"}],"group":"cf-nel","max_age":604800} A X-Content-Type-Options Ok: Header without syntax errors found: nosniff A Referrer-Policy Ok: Header without syntax errors found: strict-origin-when-cross-origin A X-Frame-Options Ok: Header without syntax errors found: SAMEORIGIN B Info: Header is deprecated. May not longer work in modern browsers. SAMEORIGIN. Better solution: Use a Content-Security-Policy Header with a frame-ancestors directive. DENY - use 'none', SAMEORIGIN - use 'self'. If you want to allow some domains to frame your page, add these urls. A X-Xss-Protection Ok: Header without syntax errors found: 1; mode=block B Info: Header is deprecated. May not longer work in modern browsers. 1; mode=block A www.zoom.us 170.114.52.2 Content-Security-Policy Ok: Header without syntax errors found: upgrade-insecure-requests; default-src https://*.zoom.us https://zoom.us blob: 'self'; img-src https: about: blob: data: 'self'; style-src https: safari-extension: chrome-extension: 'unsafe-inline' data: 'self'; font-src https: safari-extension: chrome-extension: blob: data: 'self'; connect-src * about: blob: data: 'self'; media-src * rtmp: blob: data: 'self'; frame-src https: ms-appx-web: zoommtg: zoomus: wvjbscheme: data: blob: 'self'; object-src 'none'; base-uri 'none';script-src 'self' 'strict-dynamic' 'nonce-C5iZ_M-RQT6uGdjjPUD7og' 'unsafe-inline' blob: https:; F Bad: default-src with "*" or a scheme found. That allows too much, don't use such a definition. A Good: default-src without 'unsafe-inline' or 'unsave-eval'. E Bad: No form-action directive found. Use one to limit the form - action - destinations. form-action is a navigation-directive, so default-src isn't used. E Bad: No frame-ancestors directive found. Use one to limit the pages allowed to use this page in frame / iframe / object / embed / applet. frame-ancestors is a navigation-directive, so default-src isn't used. A Good: base-uri directive found. That limits the URLs which can be used in a document's <base> element. Because it's a document directive, default-src isn't used, so an own directive is required. A Good: object-src only with 'none' or 'self' found, no scheme, no other urls. That blocks object / embed / applet - elements. C Critical: script-src with 'unsafe-inline' or 'unsafe-eval' and with a nonce found. Ok, better with the nonce, but not really good. Don't use 'unsafe' - declarations. F Critical: script-src with * or a scheme found. Never allow wildcard - sources. A Good: script-src without data: schema found. Why is this important? The data: schema allows hidden code injection. Insert <script src='data:application/javascript;base64,YWxlcnQoJ1hTUycpOw=='></script> in your page and see what happens. F Dangerous: frame-src is defined and allows the data: schema. That allows hidden code injection. Insert <iframe src="data:text/html;charset=utf-8;base64,PCFET0NUWVBFIGh0bWw+PGh0bWw+PGJvZHk+PHA+YmVmb3JlPHNjcmlwdCB0eXBlPSJ0ZXh0L2phdmFzY3JpcHQiPmFsZXJ0KCdYU1MnKTwvc2NyaXB0PjxwPmFmdGVyPC9ib2R5PjwvaHRtbD4="></iframe> in your page and see what happens. A Ok: Nonce found. A report-to Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=BYgCJAqDbqn14T5VeHZXWooBYKD7FadBoAgbAsLjVmVKttYZGyA%2FgDtmdBzU6zkcJyBkglNsYgOH6toq719U7swqrn7JpMKTovKZX%2BGlPteJ0pAhI%2Bg3Arws5l9t"}],"group":"cf-nel","max_age":604800} A Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=BYgCJAqDbqn14T5VeHZXWooBYKD7FadBoAgbAsLjVmVKttYZGyA%2FgDtmdBzU6zkcJyBkglNsYgOH6toq719U7swqrn7JpMKTovKZX%2BGlPteJ0pAhI%2Bg3Arws5l9t"}],"group":"cf-nel","max_age":604800} A X-Content-Type-Options Ok: Header without syntax errors found: nosniff A Referrer-Policy Ok: Header without syntax errors found: strict-origin-when-cross-origin A X-Frame-Options Ok: Header without syntax errors found: SAMEORIGIN B Info: Header is deprecated. May not longer work in modern browsers. SAMEORIGIN. Better solution: Use a Content-Security-Policy Header with a frame-ancestors directive. DENY - use 'none', SAMEORIGIN - use 'self'. If you want to allow some domains to frame your page, add these urls. A X-Xss-Protection Ok: Header without syntax errors found: 1; mode=block B Info: Header is deprecated. May not longer work in modern browsers. 1; mode=block A www.zoom.us 2407:30c0:182::aa72:3402 Content-Security-Policy Ok: Header without syntax errors found: upgrade-insecure-requests; default-src https://*.zoom.us https://zoom.us blob: 'self'; img-src https: about: blob: data: 'self'; style-src https: safari-extension: chrome-extension: 'unsafe-inline' data: 'self'; font-src https: safari-extension: chrome-extension: blob: data: 'self'; connect-src * about: blob: data: 'self'; media-src * rtmp: blob: data: 'self'; frame-src https: ms-appx-web: zoommtg: zoomus: wvjbscheme: data: blob: 'self'; object-src 'none'; base-uri 'none';script-src 'self' 'strict-dynamic' 'nonce-0akMcgMwQ4eEOMzUMopzqw' 'unsafe-inline' blob: https:; F Bad: default-src with "*" or a scheme found. That allows too much, don't use such a definition. A Good: default-src without 'unsafe-inline' or 'unsave-eval'. E Bad: No form-action directive found. Use one to limit the form - action - destinations. form-action is a navigation-directive, so default-src isn't used. E Bad: No frame-ancestors directive found. Use one to limit the pages allowed to use this page in frame / iframe / object / embed / applet. frame-ancestors is a navigation-directive, so default-src isn't used. A Good: base-uri directive found. That limits the URLs which can be used in a document's <base> element. Because it's a document directive, default-src isn't used, so an own directive is required. A Good: object-src only with 'none' or 'self' found, no scheme, no other urls. That blocks object / embed / applet - elements. C Critical: script-src with 'unsafe-inline' or 'unsafe-eval' and with a nonce found. Ok, better with the nonce, but not really good. Don't use 'unsafe' - declarations. F Critical: script-src with * or a scheme found. Never allow wildcard - sources. A Good: script-src without data: schema found. Why is this important? The data: schema allows hidden code injection. Insert <script src='data:application/javascript;base64,YWxlcnQoJ1hTUycpOw=='></script> in your page and see what happens. F Dangerous: frame-src is defined and allows the data: schema. That allows hidden code injection. Insert <iframe src="data:text/html;charset=utf-8;base64,PCFET0NUWVBFIGh0bWw+PGh0bWw+PGJvZHk+PHA+YmVmb3JlPHNjcmlwdCB0eXBlPSJ0ZXh0L2phdmFzY3JpcHQiPmFsZXJ0KCdYU1MnKTwvc2NyaXB0PjxwPmFmdGVyPC9ib2R5PjwvaHRtbD4="></iframe> in your page and see what happens. A Ok: Nonce found. A report-to Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=ej02Pd%2BpglIy1SpdZL93FJK3ACNPxohR4V8y05tCtoxsXvc7BEB0q0VptZyrUyiEGa%2FNJNI0eBdgstTOz7CQiRmRUeSnk1Pgc2%2FErBjDXh5Of0PvAClDVFrHdsJXwYRPZfGFQkfA7lg5"}],"group":"cf-nel","max_age":604800} A Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=ej02Pd%2BpglIy1SpdZL93FJK3ACNPxohR4V8y05tCtoxsXvc7BEB0q0VptZyrUyiEGa%2FNJNI0eBdgstTOz7CQiRmRUeSnk1Pgc2%2FErBjDXh5Of0PvAClDVFrHdsJXwYRPZfGFQkfA7lg5"}],"group":"cf-nel","max_age":604800} A X-Content-Type-Options Ok: Header without syntax errors found: nosniff A Referrer-Policy Ok: Header without syntax errors found: strict-origin-when-cross-origin A X-Frame-Options Ok: Header without syntax errors found: SAMEORIGIN B Info: Header is deprecated. May not longer work in modern browsers. SAMEORIGIN. Better solution: Use a Content-Security-Policy Header with a frame-ancestors directive. DENY - use 'none', SAMEORIGIN - use 'self'. If you want to allow some domains to frame your page, add these urls. A X-Xss-Protection Ok: Header without syntax errors found: 1; mode=block B Info: Header is deprecated. May not longer work in modern browsers. 1; mode=block F zoom.us 170.114.52.2 Permissions-Policy Critical: Missing Header: F zoom.us 2407:30c0:182::aa72:3402 Permissions-Policy Critical: Missing Header: F www.zoom.us 170.114.52.2 Permissions-Policy Critical: Missing Header: F www.zoom.us 2407:30c0:182::aa72:3402 Permissions-Policy Critical: Missing Header: A Good: Different combinations of domain names and ip addresses checked, Content-Security-Policy - Header with a nonce declaration sent: Every combination domain + ip with an own, unique nonce. 3. DNS- and NameServer - Checks A Info:: 16 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 4 Name Servers. A Info:: 16 Queries complete, 16 with IPv6, 0 with IPv4. A Good: All DNS Queries done via IPv6. Ok (4 - 8):: An average of 4.0 queries per domain name server required to find all ip addresses of all name servers. A Info:: 4 different Name Servers found: ns-1137.awsdns-14.org, ns-1772.awsdns-29.co.uk, ns-387.awsdns-48.com, ns-888.awsdns-47.net, 4 Name Servers included in Delegation: ns-1137.awsdns-14.org, ns-1772.awsdns-29.co.uk, ns-387.awsdns-48.com, ns-888.awsdns-47.net, 4 Name Servers included in 1 Zone definitions: ns-1137.awsdns-14.org, ns-1772.awsdns-29.co.uk, ns-387.awsdns-48.com, ns-888.awsdns-47.net, 1 Name Servers listed in SOA.Primary: ns-1137.awsdns-14.org. A Good: Only one SOA.Primary Name Server found.: ns-1137.awsdns-14.org. A Good: SOA.Primary Name Server included in the delegation set.: ns-1137.awsdns-14.org. A Good: Consistency between delegation and zone. The set of NS records served by the authoritative name servers must match those proposed for the delegation in the parent zone. Ordered list of name servers: ns-1137.awsdns-14.org, ns-1772.awsdns-29.co.uk, ns-387.awsdns-48.com, ns-888.awsdns-47.net A Good: All Name Server Domain Names have a Public Suffix. A Good: All Name Server Domain Names ending with a Public Suffix have minimal one IPv4- or IPv6 address. A Good: All Name Server ip addresses are public. A Good: Minimal 2 different name servers (public suffix and public ip address) found: 4 different Name Servers found A Good: All name servers have ipv4- and ipv6-addresses.: 4 different Name Servers found A Good: Name servers with different Top Level Domains / Public Suffix List entries found: 4 Name Servers, 4 Top Level Domains: org, net, com, co.uk A Good: Name Servers with different domain names found.: 4 different Domains found A Good: Name servers with different Country locations found: 4 Name Servers, 3 Countries: GB, IE, US A Info: Ipv4-Subnet-list: 4 Name Servers, 1 different subnets (first Byte): 205., 1 different subnets (first two Bytes): 205.251., 4 different subnets (first three Bytes): 205.251.193., 205.251.195., 205.251.196., 205.251.198. A Good: Name Server IPv4-addresses from different subnet found: A Info: IPv6-Subnet-list: 4 Name Servers with IPv6, 1 different subnets (first block): 2600:, 1 different subnets (first two blocks): 2600:9000:, 4 different subnets (first three blocks): 2600:9000:5301:, 2600:9000:5303:, 2600:9000:5304:, 2600:9000:5306:, 4 different subnets (first four blocks): 2600:9000:5301:8300:, 2600:9000:5303:7800:, 2600:9000:5304:7100:, 2600:9000:5306:ec00: A Good: Name Server IPv6 addresses from different subnets found. A Good: Nameserver supports TCP connections: 8 good Nameserver A Good: Nameserver supports Echo Capitalization: 8 good Nameserver A Good: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 8 good Nameserver A Good: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 8 good Nameserver Nameserver doesn't pass all EDNS-Checks: a.cctld.us: OP100: no result. FLAGS: no result. V1: no result. V1OP100: no result. V1FLAGS: no result. DNSSEC: no result. V1DNSSEC: no result. NSID: no result. COOKIE: no result. CLIENTSUBNET: no result. A Good: All SOA have the same Serial Number A Good: CAA entries found, creating certificate is limited: amazon.com is allowed to create certificates A Good: CAA entries found, creating certificate is limited: digicert.com is allowed to create certificates A Good: CAA entries found, creating certificate is limited: godaddy.com is allowed to create certificates A Good: CAA entries found, creating certificate is limited: letsencrypt.org is allowed to create certificates A Good: CAA entries found, creating certificate is limited: pki.goog is allowed to create certificates A Good: CAA entries found, creating certificate is limited: sectigo.com is allowed to create certificates 4. Content- and Performance-critical Checks A Good: All checks /.well-known/acme-challenge/random-filename without redirects answer with the expected http status 404 - Not Found. Creating a Letsencrypt certificate via http-01 challenge should work. If it doesn't work: Check your vHost configuration (apachectl -S, httpd -S, nginx -T). Every combination of port and ServerName / ServerAlias (Apache) or Server (Nginx) must be unique. Merge duplicated entries in one vHost. If you use an IIS, extensionless files must be allowed in the /.well-known/acme-challenge subdirectory. Create a web.config in that directory. Content: <configuration><system.webServer><staticContent><mimeMap fileExtension="." mimeType="text/plain" /></staticContent></system.webServer></configuration>. If you have a redirect http ⇒ https, that's ok, Letsencrypt follows such redirects to port 80 / 443 (same or other server). There must be a certificate. But the certificate may be expired, self signed or with a not matching domain name. Checking the validation file Letsencrypt ignores such certificate errors. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask. A Good: Every https result with status 200 supports GZip. https://zoom.us/ 170.114.52.2 Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space. https://zoom.us/ 2407:30c0:182::aa72:3402 Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space. https://www.zoom.us/ 170.114.52.2 Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space. https://www.zoom.us/ 2407:30c0:182::aa72:3402 Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space. A Good: Every https connection via port 443 supports the http/2 protocol via ALPN. https://zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de Critical: Some script Elements (type text/javascript) with a src-Attribute don't have a defer / async - Attribute. Loading and executing these JavaScripts blocks parsing and rendering the Html-Output. That's bad if your site is large or the connection is slow / mobile usage. Use "async" if the js file has only functions (so nothing is executed after parsing the file) or is independend. Use "defer" if the order of the scripts is important. All "defer" scripts are executed before the DOMContentLoaded event is fired. Check https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script to see some details.: 13 script elements without defer/async. https://www.zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de Critical: Some script Elements (type text/javascript) with a src-Attribute don't have a defer / async - Attribute. Loading and executing these JavaScripts blocks parsing and rendering the Html-Output. That's bad if your site is large or the connection is slow / mobile usage. Use "async" if the js file has only functions (so nothing is executed after parsing the file) or is independend. Use "defer" if the order of the scripts is important. All "defer" scripts are executed before the DOMContentLoaded event is fired. Check https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script to see some details.: 13 script elements without defer/async. Warning: CSS / JavaScript found without GZip support. Send these ressources with GZip. 8 external CSS / JavaScript files without GZip found - 34 with GZip, 42 complete A Good: All images with internal compression not sent via GZip. Images (.png, .jpg) are already compressed, so an additional GZip isn't helpful. 6 images (type image/png, image/jpg) found without additional GZip. Not required because these images are already compressed Warning: CSS / JavaScript files with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 0 external CSS / JavaScript files without Cache-Control-Header, 34 with Cache-Control, but no max-age, 8 with Cache-Control max-age too short (minimum 7 days), 0 with Cache-Control long enough, 42 complete. Warning: Images with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 0 image files without Cache-Control-Header, 130 with Cache-Control, but no max-age, 0 with Cache-Control max-age too short (minimum 7 days), 0 with Cache-Control long enough, 130 complete. A Good: All checked attribute values are enclosed in quotation marks (" or '). A Good: Some img-elements have a valid alt-attribute.: 130 img-elements found, 110 img-elements with correct alt-attributes (defined, not an empty value). Wrong: img-elements without alt-attribute or empty alt-attribute found. The alt-attribute ("alternative") is required and should describe the img. So Screenreader and search engines are able to use these informations.: 20 img-elements without alt-attribute, 0 img-elements with empty alt-attribute found. A Good: Domainname is not on the "Specially Designated Nationals And Blocked Persons List" (SDN). That's an US-list of individuals and companies owned or controlled by, or acting for or on behalf of, targeted countries. It also lists individuals, groups, and entities, such as terrorists and narcotics traffickers designated under programs that are not country-specific. Collectively, such individuals and companies are called "Specially Designated Nationals" or "SDNs." Their assets are blocked and U.S. persons are generally prohibited from dealing with them. So if a domain name is on that list, it's impossible to create a Letsencrypt certificate with that domain name. Check the list manual - https://www.treasury.gov/resource-center/sanctions/sdn-list/pages/default.aspx https://zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2.613 seconds Warning: 404 needs more then one second https://www.zoom.us/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2.944 seconds Warning: 404 needs more then one second A Duration: 99040 milliseconds, 99.040 seconds