mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com Open in urlscan Pro
3.220.54.114  Public Scan

0 Outgoing links

These are links going to different origins than the main page.

Redirected requests

There were HTTP redirect chains for the following requests:

19 HTTP transactions Everything HTML Script AJAX CSS Image Expand all
0 data transactions

Method Protocol	Status	Resource Path	Size x-fer	Time Latency	Type MIME-Type	IP Location
GET H/1.1	404 Not Found	Primary Request / Show response mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/	4 KB 2 KB	483ms 187ms	Document text/html	3.220.54.114 AMAZON-AES
General Check archive.org Show headers Download Go to Full URL https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Protocol HTTP/1.1 Security TLS 1.3, , AES_256_GCM Server 3.220.54.114 Ashburn, United States, ASN14618 (AMAZON-AES, US), Reverse DNS ec2-3-220-54-114.compute-1.amazonaws.com Software / Resource Hash 68e305673f7d2f0e880381d5b4dd3c51b74ef690098a4ca9521ea9b02db6ce6b Security Headers Name Value Strict-Transport-Security max-age=31536000; includeSubDomains X-Content-Type-Options nosniff X-Xss-Protection 0 Request headers Upgrade-Insecure-Requests 1 User-Agent Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Response headers Connection keep-alive Content-Encoding gzip Content-Type text/html; charset=utf-8 Date Fri, 29 Nov 2024 09:54:56 GMT ETag W/"f13-iFvIDv7CYshJlEOixy/xj7l3g6I" Referrer-Policy strict-origin-when-cross-origin Server-Timing intid;desc=eacf09a7ded45ff4 Strict-Transport-Security max-age=31536000; includeSubDomains Transfer-Encoding chunked Vary Accept-Encoding X-Content-Type-Options nosniff X-XSS-Protection 0
GET H2	200	404_v2.css cdn-static.bizzabo.com/webattendee/28828/css/	2 KB 2 KB	269ms 144ms	Stylesheet text/css	2600:9000:225e:ac00:8:21ec:c100:93a1 AMAZON-02
General Check archive.org Show headers Download Go to Full URL https://cdn-static.bizzabo.com/webattendee/28828/css/404_v2.css Requested by Host: mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com URL: https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Protocol H2 Security TLS 1.3, , AES_128_GCM Server 2600:9000:225e:ac00:8:21ec:c100:93a1 , United States, ASN16509 (AMAZON-02, US), Reverse DNS Software AmazonS3 / Resource Hash c8ca7f2cb8aaeff31232d6b98a0ae1e099dfc9c7c915a4ddf5e0a9ade5c699d0 Security Headers Name Value Strict-Transport-Security max-age=31536000 X-Content-Type-Options nosniff X-Xss-Protection 1; mode=block Request headers User-Agent Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Referer https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Response headers content-encoding gzip x-amz-version-id I9orHSbtyH0ii5xQ5iIqc2_uJ_PBIBwA etag W/"f4895f92ab0877484d1d230c603f1160" age 3553 x-content-type-options nosniff alt-svc h3=":443"; ma=86400 x-cache Hit from cloudfront x-amz-cf-id 91JUOnQEeUxNQSy9DjbsPEMg6rPKLJDOT0bUNtLkpeHei5Pa9dmRzw== date Fri, 29 Nov 2024 08:55:44 GMT content-type text/css vary accept-encoding, Origin last-modified Wed, 27 Nov 2024 08:28:43 GMT strict-transport-security max-age=31536000 cache-control max-age=86400 cross-origin-resource-policy cross-origin referrer-policy strict-origin-when-cross-origin via 1.1 a5a8e743f28968822c126102a78bb7c6.cloudfront.net (CloudFront) x-xss-protection 1; mode=block x-amz-cf-pop FRA60-P4 server AmazonS3 x-amz-server-side-encryption AES256
GET H2	200	jquery.2.1.0.js Show response cdn-static.bizzabo.com/webattendee/28828/scripts/libs/	82 KB 29 KB	271ms 147ms	Script application/javascript	2600:9000:225e:ac00:8:21ec:c100:93a1 AMAZON-02
General Check archive.org Show headers Download Go to Full URL https://cdn-static.bizzabo.com/webattendee/28828/scripts/libs/jquery.2.1.0.js Requested by Host: mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com URL: https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Protocol H2 Security TLS 1.3, , AES_128_GCM Server 2600:9000:225e:ac00:8:21ec:c100:93a1 , United States, ASN16509 (AMAZON-02, US), Reverse DNS Software AmazonS3 / Resource Hash 7c7c83b80dfecb8b0964764fa65ff144d56df7e332dfd2dc8bc02a5ee9e9253a Security Headers Name Value Strict-Transport-Security max-age=31536000 X-Content-Type-Options nosniff X-Xss-Protection 1; mode=block Request headers User-Agent Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Referer https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Response headers content-encoding gzip x-amz-version-id kL50QnJ1PlB8TlBXveRXcJxT27tkAlsD etag W/"1bff68a660803bfae1800fc4e292563e" age 3706 x-content-type-options nosniff alt-svc h3=":443"; ma=86400 x-cache Hit from cloudfront x-amz-cf-id Bpv7hbWxWkZLyhqJ2Gzv89C6uL3Kg8Ro-BT0vXefWcVhj4atUv46vg== date Fri, 29 Nov 2024 08:53:28 GMT content-type application/javascript vary accept-encoding, Origin last-modified Wed, 27 Nov 2024 08:28:49 GMT strict-transport-security max-age=31536000 cache-control max-age=86400 cross-origin-resource-policy cross-origin referrer-policy strict-origin-when-cross-origin via 1.1 a5a8e743f28968822c126102a78bb7c6.cloudfront.net (CloudFront) x-xss-protection 1; mode=block x-amz-cf-pop FRA60-P4 server AmazonS3 x-amz-server-side-encryption AES256
GET H2	200	404_v2.png cdn-static.bizzabo.com/webattendee/28828/images/404/	20 KB 20 KB	280ms 160ms	Image image/png	2600:9000:225e:ac00:8:21ec:c100:93a1 AMAZON-02
General Check archive.org Show headers Download Go to Show image Full URL https://cdn-static.bizzabo.com/webattendee/28828/images/404/404_v2.png Requested by Host: mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com URL: https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Protocol H2 Security TLS 1.3, , AES_128_GCM Server 2600:9000:225e:ac00:8:21ec:c100:93a1 , United States, ASN16509 (AMAZON-02, US), Reverse DNS Software AmazonS3 / Resource Hash 21aec424d9379419de0f09d8b49079323a955534a374defaab523f9b75f5a65e Security Headers Name Value Strict-Transport-Security max-age=31536000 X-Content-Type-Options nosniff X-Xss-Protection 1; mode=block Request headers User-Agent Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Referer https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Response headers x-amz-version-id RVEp.kHSDnPEjUkIOyqU0q_9tYSxs5A2 etag "c5f9a58aec0f282bffe56b4bbcc5779c" age 2273 x-content-type-options nosniff alt-svc h3=":443"; ma=86400 x-cache Hit from cloudfront x-amz-cf-id Yvkv3ERDsm5DEXOnxC-cUcbxFELF5mLzf8yHUsYIIGElwio2zueAng== date Fri, 29 Nov 2024 09:24:11 GMT content-type image/png vary accept-encoding, Origin last-modified Wed, 27 Nov 2024 08:28:45 GMT strict-transport-security max-age=31536000 cache-control max-age=86400 cross-origin-resource-policy cross-origin referrer-policy strict-origin-when-cross-origin via 1.1 a5a8e743f28968822c126102a78bb7c6.cloudfront.net (CloudFront) accept-ranges bytes content-length 20237 x-xss-protection 1; mode=block x-amz-cf-pop FRA60-P4 server AmazonS3 x-amz-server-side-encryption AES256
GET H3	200	js.cookie.min.js Show response cdnjs.cloudflare.com/ajax/libs/js-cookie/2.2.0/	2 KB 1 KB	106ms 54ms	Script application/javascript	104.17.24.14 CLOUDFLARENET
General Check archive.org Show headers Download Go to Full URL https://cdnjs.cloudflare.com/ajax/libs/js-cookie/2.2.0/js.cookie.min.js Requested by Host: mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com URL: https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Protocol H3 Security QUIC, , AES_128_GCM Server 104.17.24.14 -, , ASN13335 (CLOUDFLARENET, US), Reverse DNS Software cloudflare / Resource Hash f4db76afeb499d277603609152f9e382c0fe112d44c6f8db8c136a89d9bd7682 Security Headers Name Value Strict-Transport-Security max-age=15780000 X-Content-Type-Options nosniff Request headers User-Agent Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Referer https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Response headers cf-cdnjs-via cfworker/kv content-encoding br cf-cache-status HIT etag "5eb03ec5-699" age 23045 report-to {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=J8Y%2B%2BQK1lc94SqytbbbrGC6IcyXbn4dWFx2FilGmVjdWg1hhveB%2B7tOx%2F6f7KFMjtaX1xeZu6SjTJ2YyTH3CvoalBuuQ4GUJfwpJnl4zDeFOcEmBCWP0Cvl73ISV6CrdtrSjPn8G"}],"group":"cf-nel","max_age":604800} x-content-type-options nosniff expires Wed, 19 Nov 2025 09:54:56 GMT alt-svc h3=":443"; ma=86400 server-timing cfExtPri date Fri, 29 Nov 2024 09:54:56 GMT content-type application/javascript; charset=utf-8 last-modified Mon, 04 May 2020 16:11:49 GMT vary Accept-Encoding priority u=2,i=?0 strict-transport-security max-age=15780000 cache-control public, max-age=30672000 timing-allow-origin * nel {"success_fraction":0.01,"report_to":"cf-nel","max_age":604800} cross-origin-resource-policy cross-origin cf-ray 8ea1b81d8948d2ce-FRA accept-ranges bytes access-control-allow-origin * content-length 746 server cloudflare
GET H2	200	jquery-css-transform.js Show response cdn-static.bizzabo.com/webattendee/28828/scripts/libs/	4 KB 2 KB	170ms 160ms	Script application/javascript	2600:9000:225e:ac00:8:21ec:c100:93a1 AMAZON-02
General Check archive.org Show headers Download Go to Full URL https://cdn-static.bizzabo.com/webattendee/28828/scripts/libs/jquery-css-transform.js Requested by Host: mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com URL: https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Protocol H2 Security TLS 1.3, , AES_128_GCM Server 2600:9000:225e:ac00:8:21ec:c100:93a1 , United States, ASN16509 (AMAZON-02, US), Reverse DNS Software AmazonS3 / Resource Hash 1375c1dd5f4689c4f77906a176b77e472217cf86b7b3b94421891f02f43b3c9f Security Headers Name Value Strict-Transport-Security max-age=31536000 X-Content-Type-Options nosniff X-Xss-Protection 1; mode=block Request headers User-Agent Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Referer https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Response headers content-encoding gzip x-amz-version-id UwhSUBeiXkGPN2zQuW.i33PsLRSg1DUc etag W/"74ceefc6e13cab122d1fdcc0f99f6d56" age 3705 x-content-type-options nosniff alt-svc h3=":443"; ma=86400 x-cache Hit from cloudfront x-amz-cf-id untDgOTEB3RhVJGTjYtSfjqhPeO07-U4j9a88E8Zdb_m7YrZrggNrw== date Fri, 29 Nov 2024 08:53:28 GMT content-type application/javascript vary accept-encoding, Origin last-modified Wed, 27 Nov 2024 08:28:49 GMT strict-transport-security max-age=31536000 cache-control max-age=86400 cross-origin-resource-policy cross-origin referrer-policy strict-origin-when-cross-origin via 1.1 a5a8e743f28968822c126102a78bb7c6.cloudfront.net (CloudFront) x-xss-protection 1; mode=block x-amz-cf-pop FRA60-P4 server AmazonS3 x-amz-server-side-encryption AES256
GET H2	200	in.js Show response platform.linkedin.com/	510 KB 160 KB	271ms 46ms	Script text/javascript	2606:2800:233:66b5:799a:7cd3:f74d:7071 EDGECAST
General Check archive.org Show headers Download Go to Full URL https://platform.linkedin.com/in.js Requested by Host: mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com URL: https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Protocol H2 Security TLS 1.3, , AES_256_GCM Server 2606:2800:233:66b5:799a:7cd3:f74d:7071 , United States, ASN15133 (EDGECAST, US), Reverse DNS Software ECAcc (frc/4CE6) / Resource Hash f16a9696b3176614d3fe439def6fd9754fd489877999517b99b3b2f265cb7990 Security Headers Name Value X-Content-Type-Options nosniff Request headers User-Agent Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Referer https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Response headers content-encoding gzip age 2137 x-cdn-proto HTTP2 x-li-fabric prod-lva1 x-content-type-options nosniff expires Fri, 29 Nov 2024 10:19:21 GMT x-li-proto http/1.1 x-cache HIT date Fri, 29 Nov 2024 09:54:56 GMT content-type text/javascript; charset=UTF-8 x-cdn-client-ip-version IPV6 vary Accept-Encoding last-modified Fri, 29 Nov 2024 09:19:20 GMT x-li-pop prod-lva1-x cache-control public, max-age=3600 x-cdn ECST x-li-uuid AAYoCbGe1U4yehu1Y45x5g== accept-ranges bytes content-length 163630 server ECAcc (frc/4CE6)
GET H2	200	bizzafont.css cdn-static.bizzabo.com/webattendee/28828/css/	18 KB 4 KB	61ms 48ms	Stylesheet text/css	2600:9000:225e:ac00:8:21ec:c100:93a1 AMAZON-02
General Check archive.org Show headers Download Go to Full URL https://cdn-static.bizzabo.com/webattendee/28828/css/bizzafont.css Requested by Host: cdn-static.bizzabo.com URL: https://cdn-static.bizzabo.com/webattendee/28828/css/404_v2.css Protocol H2 Security TLS 1.3, , AES_128_GCM Server 2600:9000:225e:ac00:8:21ec:c100:93a1 , United States, ASN16509 (AMAZON-02, US), Reverse DNS Software AmazonS3 / Resource Hash 9fca6f2649edd2d7803f8ebf56a770657b0ef63e5aabf48c8f9702737d89f623 Security Headers Name Value Strict-Transport-Security max-age=31536000 X-Content-Type-Options nosniff X-Xss-Protection 1; mode=block Request headers User-Agent Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Referer https://cdn-static.bizzabo.com/webattendee/28828/css/404_v2.css Response headers content-encoding gzip x-amz-version-id TpwcKlOJrszSwz2H4Xj3yGV2eT28sZ.g etag W/"5aba04f3e8f4439e687babef280f8f54" age 3553 x-content-type-options nosniff alt-svc h3=":443"; ma=86400 x-cache Hit from cloudfront x-amz-cf-id QQGf5GLzCQIgVKaG9sjoY7GM-tO-SQep6QHDuTMHDLjqa43MKdoGog== date Fri, 29 Nov 2024 08:55:44 GMT content-type text/css vary accept-encoding, Origin last-modified Wed, 27 Nov 2024 08:28:43 GMT strict-transport-security max-age=31536000 cache-control max-age=86400 cross-origin-resource-policy cross-origin referrer-policy strict-origin-when-cross-origin via 1.1 a5a8e743f28968822c126102a78bb7c6.cloudfront.net (CloudFront) x-xss-protection 1; mode=block x-amz-cf-pop FRA60-P4 server AmazonS3 x-amz-server-side-encryption AES256
GET H2	200	css fonts.googleapis.com/	14 KB 1 KB	225ms 49ms	Stylesheet text/css	2a00:1450:4001:800::200a GOOGLE
General Check archive.org Show headers Download Go to Full URL https://fonts.googleapis.com/css?family=Source+Sans+Pro:100,200,300,400,500,600,700,800,900 Requested by Host: cdn-static.bizzabo.com URL: https://cdn-static.bizzabo.com/webattendee/28828/css/404_v2.css Protocol H2 Security TLS 1.3, , AES_128_GCM Server 2a00:1450:4001:800::200a Frankfurt am Main, Germany, ASN15169 (GOOGLE, US), Reverse DNS Software ESF / Resource Hash 6a20bc1c4473f7e85bd5ecbfb3acdf04d08a454a979546e2e764f6a566b4dacd Security Headers Name Value Strict-Transport-Security max-age=31536000 X-Content-Type-Options nosniff X-Frame-Options SAMEORIGIN X-Xss-Protection 0 Request headers User-Agent Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Referer https://cdn-static.bizzabo.com/ Response headers content-encoding gzip x-content-type-options nosniff expires Fri, 29 Nov 2024 09:54:56 GMT alt-svc h3=":443"; ma=2592000,h3-29=":443"; ma=2592000 date Fri, 29 Nov 2024 09:54:56 GMT content-type text/css; charset=utf-8 vary Sec-Fetch-Dest, Sec-Fetch-Mode, Sec-Fetch-Site last-modified Fri, 29 Nov 2024 09:50:03 GMT x-frame-options SAMEORIGIN strict-transport-security max-age=31536000 link <https://fonts.gstatic.com>; rel=preconnect; crossorigin cache-control private, max-age=86400, stale-while-revalidate=604800 timing-allow-origin * cross-origin-opener-policy same-origin-allow-popups cross-origin-resource-policy cross-origin access-control-allow-origin * x-xss-protection 0 server ESF
GET H2	200	css2 fonts.googleapis.com/	53 KB 2 KB	227ms 53ms	Stylesheet text/css	2a00:1450:4001:800::200a GOOGLE
General Check archive.org Show headers Download Go to Full URL https://fonts.googleapis.com/css2?family=Open+Sans:ital,wght@0,300;0,400;0,600;0,700;0,800;1,300;1,600;1,700;1,800&display=swap Requested by Host: cdn-static.bizzabo.com URL: https://cdn-static.bizzabo.com/webattendee/28828/css/404_v2.css Protocol H2 Security TLS 1.3, , AES_128_GCM Server 2a00:1450:4001:800::200a Frankfurt am Main, Germany, ASN15169 (GOOGLE, US), Reverse DNS Software ESF / Resource Hash fdb967d4628035fd3171d01c3169e68bdd9d8c0d253719f38369352a9e56f581 Security Headers Name Value Strict-Transport-Security max-age=31536000 X-Content-Type-Options nosniff X-Frame-Options SAMEORIGIN X-Xss-Protection 0 Request headers User-Agent Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Referer https://cdn-static.bizzabo.com/ Response headers content-encoding gzip x-content-type-options nosniff expires Fri, 29 Nov 2024 09:54:56 GMT alt-svc h3=":443"; ma=2592000,h3-29=":443"; ma=2592000 date Fri, 29 Nov 2024 09:54:56 GMT content-type text/css; charset=utf-8 vary Sec-Fetch-Dest, Sec-Fetch-Mode, Sec-Fetch-Site last-modified Fri, 29 Nov 2024 09:54:56 GMT x-frame-options SAMEORIGIN strict-transport-security max-age=31536000 link <https://fonts.gstatic.com>; rel=preconnect; crossorigin cache-control private, max-age=86400, stale-while-revalidate=604800 timing-allow-origin * cross-origin-opener-policy same-origin-allow-popups cross-origin-resource-policy cross-origin access-control-allow-origin * x-xss-protection 0 server ESF
GET H2	200	plusone.js Show response apis.google.com/js/	63 KB 24 KB	189ms 54ms	Script text/javascript	2a00:1450:4001:813::200e GOOGLE
General Check archive.org Show headers Download Go to Full URL https://apis.google.com/js/plusone.js Requested by Host: mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com URL: https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Protocol H2 Security TLS 1.3, , AES_128_GCM Server 2a00:1450:4001:813::200e Frankfurt am Main, Germany, ASN15169 (GOOGLE, US), Reverse DNS Software sffe / Resource Hash d032e0c2fa51aaa4367ad61b6afe6f9742b920d2e5034f156831daf53cfa9a14 Security Headers Name Value Content-Security-Policy require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/gapi-team X-Content-Type-Options nosniff X-Xss-Protection 0 Request headers User-Agent Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Referer https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Response headers content-encoding gzip etag "512286f27c5f5cbf" report-to {"group":"gapi-team","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/gapi-team"}]} x-content-type-options nosniff expires Fri, 29 Nov 2024 09:54:56 GMT alt-svc h3=":443"; ma=2592000,h3-29=":443"; ma=2592000 date Fri, 29 Nov 2024 09:54:56 GMT content-type text/javascript vary Accept-Encoding content-security-policy require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/gapi-team cache-control private, max-age=1800, stale-while-revalidate=1800 timing-allow-origin * cross-origin-opener-policy same-origin; report-to="gapi-team" cross-origin-resource-policy cross-origin accept-ranges bytes access-control-allow-origin * content-length 24184 x-xss-protection 0 server sffe
GET H3	200	all.js Show response connect.facebook.net/en_US/	3 KB 2 KB	97ms 44ms	Script application/x-javascript	157.240.253.1 FACEBOOK
General Check archive.org Show headers Download Go to Full URL https://connect.facebook.net/en_US/all.js Requested by Host: mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com URL: https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Protocol H3 Security QUIC, , AES_128_GCM Server 157.240.253.1 Frankfurt am Main, Germany, ASN32934 (FACEBOOK, US), Reverse DNS xx-fbcdn-shv-02-fra5.fbcdn.net Software / Resource Hash f7584a14e717853512632908cd9f66a1621c3fea764fda7d0a5d627fd8f6661c Security Headers Name Value Strict-Transport-Security max-age=31536000; preload; includeSubDomains X-Content-Type-Options nosniff X-Frame-Options DENY Request headers User-Agent Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Referer https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Response headers content-md5 KhDv59V+6d1LVIdG0VB7+g== access-control-expose-headers X-FB-Content-MD5 content-encoding gzip etag "e6da4e796af561964dd5d5771c6d4228" report-to {"max_age":2592000,"endpoints":[{"url":"https:\/\/www.facebook.com\/browser_reporting\/coop\/?minimize=0"}],"group":"coop_report","include_subdomains":true}, {"max_age":86400,"endpoints":[{"url":"https:\/\/www.facebook.com\/browser_reporting\/coep\/?minimize=0"}],"group":"coep_report"}, {"max_age":21600,"endpoints":[{"url":"https:\/\/www.facebook.com\/ajax\/browser_error_reports\/"}],"group":"permissions_policy"} x-content-type-options nosniff expires Fri, 29 Nov 2024 10:04:18 GMT alt-svc h3=":443"; ma=86400 date Fri, 29 Nov 2024 09:54:56 GMT content-type application/x-javascript; charset=utf-8 vary Accept-Encoding cross-origin-embedder-policy-report-only require-corp;report-to="coep_report" priority u=3,i x-frame-options DENY strict-transport-security max-age=31536000; preload; includeSubDomains reporting-endpoints coop_report="https://www.facebook.com/browser_reporting/coop/?minimize=0", coep_report="https://www.facebook.com/browser_reporting/coep/?minimize=0", permissions_policy="https://www.facebook.com/ajax/browser_error_reports/" x-fb-content-md5 3caa65710c7a17adb7557262e28eb741 cache-control public,max-age=1200,stale-while-revalidate=3600 timing-allow-origin * cross-origin-opener-policy same-origin-allow-popups x-fb-connection-quality EXCELLENT; q=0.9, rtt=43, rtx=0, c=23, mss=1232, tbw=4458, tp=9, tpl=0, uplat=0, ullat=-1 x-fb-debug qBiMkJWDOe2TXslux4W5jsoBcHsr6iduO/xLaYOooh5O9ZmEAUVQNfE+ghoL8RZm7eavRBSjSPoLG7y0tlAXjQ== cross-origin-resource-policy cross-origin permissions-policy accelerometer=(), attribution-reporting=(), autoplay=(), bluetooth=(), camera=(), ch-device-memory=(), ch-downlink=(), ch-dpr=(), ch-ect=(), ch-rtt=(), ch-save-data=(), ch-ua-arch=(), ch-ua-bitness=(), ch-viewport-height=(), ch-viewport-width=(), ch-width=(), clipboard-read=(), clipboard-write=(), compute-pressure=(), display-capture=(), encrypted-media=(), fullscreen=(self), gamepad=(), geolocation=(), gyroscope=(), hid=(), idle-detection=(), interest-cohort=(), keyboard-map=(), local-fonts=(), magnetometer=(), microphone=(), midi=(), otp-credentials=(), payment=(), picture-in-picture=(), private-state-token-issuance=(), publickey-credentials-get=(), screen-wake-lock=(), serial=(), shared-storage=(), shared-storage-select-url=(), private-state-token-redemption=(), usb=(), unload=(self), window-management=(), xr-spatial-tracking=();report-to="permissions_policy" document-policy force-load-at-top access-control-allow-origin * content-length 1689 origin-agent-cluster ?1
GET H2	200	widgets.js Show response platform.twitter.com/	91 KB 27 KB	167ms 49ms	Script application/javascript	146.75.120.157 FASTLY
General Check archive.org Show headers Download Go to Full URL https://platform.twitter.com/widgets.js Requested by Host: mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com URL: https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Protocol H2 Security TLS 1.3, , AES_128_GCM Server 146.75.120.157 Frankfurt am Main, Germany, ASN54113 (FASTLY, US), Reverse DNS Software / Resource Hash 173460e89e6a7244218badae2016f65c48a3eae9d400802273eeca18b07336f1 Request headers User-Agent Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Referer https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Response headers content-encoding gzip etag "824beb891744db98ccbd3a456e59e0f7+gzip" access-control-allow-methods GET x-cache HIT, HIT p3p CP="CAO DSP LAW CURa ADMa DEVa TAIa PSAa PSDa IVAa IVDa OUR BUS IND UNI COM NAV INT" date Fri, 29 Nov 2024 09:54:56 GMT last-modified Mon, 11 Dec 2023 17:20:28 GMT vary Accept-Encoding x-served-by cache-iad-kcgs7200137-IAD, cache-fra-etou8220103-FRA content-type application/javascript; charset=utf-8 cache-control public, max-age=1800 tw-cdn FT accept-ranges bytes access-control-allow-origin * content-length 27597 x-amz-server-side-encryption AES256
GET H3	200	6xKydSBYKcSV-LCoeQqfX1RYOo3ig4vwlxdu.woff2 fonts.gstatic.com/s/sourcesanspro/v22/	14 KB 14 KB	110ms 44ms	Font font/woff2	172.217.18.3 GOOGLE
General Check archive.org Show headers Download Go to Full URL https://fonts.gstatic.com/s/sourcesanspro/v22/6xKydSBYKcSV-LCoeQqfX1RYOo3ig4vwlxdu.woff2 Requested by Host: fonts.googleapis.com URL: https://fonts.googleapis.com/css?family=Source+Sans+Pro:100,200,300,400,500,600,700,800,900 Protocol H3 Security QUIC, , AES_128_GCM Server 172.217.18.3 , United States, ASN15169 (GOOGLE, US), Reverse DNS fra15s28-in-f3.1e100.net Software sffe / Resource Hash 0d0a6262c545e8bbc895116e5afb22579c468d7abb77e378f377d6fed57c1dce Security Headers Name Value X-Content-Type-Options nosniff X-Xss-Protection 0 Request headers User-Agent Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Origin https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com Referer https://fonts.googleapis.com/ Response headers age 157462 report-to {"group":"apps-themes","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/apps-themes"}]} x-content-type-options nosniff expires Thu, 27 Nov 2025 14:10:34 GMT alt-svc h3=":443"; ma=2592000,h3-29=":443"; ma=2592000 date Wed, 27 Nov 2024 14:10:34 GMT last-modified Thu, 01 Jun 2023 22:52:57 GMT content-type font/woff2 cache-control public, max-age=31536000 timing-allow-origin * cross-origin-opener-policy same-origin; report-to="apps-themes" cross-origin-resource-policy cross-origin content-security-policy-report-only require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/apps-themes accept-ranges bytes access-control-allow-origin * content-length 14712 x-xss-protection 0 server sffe
GET H3	200	6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7l.woff2 fonts.gstatic.com/s/sourcesanspro/v22/	15 KB 15 KB	125ms 60ms	Font font/woff2	172.217.18.3 GOOGLE
General Check archive.org Show headers Download Go to Full URL https://fonts.gstatic.com/s/sourcesanspro/v22/6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7l.woff2 Requested by Host: fonts.googleapis.com URL: https://fonts.googleapis.com/css?family=Source+Sans+Pro:100,200,300,400,500,600,700,800,900 Protocol H3 Security QUIC, , AES_128_GCM Server 172.217.18.3 , United States, ASN15169 (GOOGLE, US), Reverse DNS fra15s28-in-f3.1e100.net Software sffe / Resource Hash 7b348b30ea1fe43857e68fc462c29e5c6e63c97666af75135c4396a272e54762 Security Headers Name Value X-Content-Type-Options nosniff X-Xss-Protection 0 Request headers User-Agent Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Origin https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com Referer https://fonts.googleapis.com/ Response headers age 298726 report-to {"group":"apps-themes","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/apps-themes"}]} x-content-type-options nosniff expires Tue, 25 Nov 2025 22:56:10 GMT alt-svc h3=":443"; ma=2592000,h3-29=":443"; ma=2592000 date Mon, 25 Nov 2024 22:56:10 GMT last-modified Thu, 01 Jun 2023 22:52:56 GMT content-type font/woff2 cache-control public, max-age=31536000 timing-allow-origin * cross-origin-opener-policy same-origin; report-to="apps-themes" cross-origin-resource-policy cross-origin content-security-policy-report-only require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/apps-themes accept-ranges bytes access-control-allow-origin * content-length 14892 x-xss-protection 0 server sffe
GET H3	200	all.js Show response connect.facebook.net/en_US/	250 KB 73 KB	51ms 51ms	Script application/x-javascript	157.240.253.1 FACEBOOK
General Check archive.org Show headers Download Go to Full URL https://connect.facebook.net/en_US/all.js?hash=51b08a432288cb4a723d134e420e8e4c Requested by Host: connect.facebook.net URL: https://connect.facebook.net/en_US/all.js Protocol H3 Security QUIC, , AES_128_GCM Server 157.240.253.1 Frankfurt am Main, Germany, ASN32934 (FACEBOOK, US), Reverse DNS xx-fbcdn-shv-02-fra5.fbcdn.net Software / Resource Hash c7e7330dc2086dbe6d9406697f864095e17703f2026535c5c464c24c1fb16fbd Security Headers Name Value Strict-Transport-Security max-age=31536000; preload; includeSubDomains X-Content-Type-Options nosniff X-Frame-Options DENY Request headers User-Agent Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Origin https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com Referer https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Response headers content-md5 jhGvmHifwJDjajuf64vMwA== access-control-expose-headers X-FB-Content-MD5 content-encoding gzip etag "443aca03b6f5b8d3352bb1d7a15a558d" report-to {"max_age":2592000,"endpoints":[{"url":"https:\/\/www.facebook.com\/browser_reporting\/coop\/?minimize=0"}],"group":"coop_report","include_subdomains":true}, {"max_age":86400,"endpoints":[{"url":"https:\/\/www.facebook.com\/browser_reporting\/coep\/?minimize=0"}],"group":"coep_report"}, {"max_age":21600,"endpoints":[{"url":"https:\/\/www.facebook.com\/ajax\/browser_error_reports\/"}],"group":"permissions_policy"} x-content-type-options nosniff expires Sat, 29 Nov 2025 08:25:54 GMT alt-svc h3=":443"; ma=86400 date Fri, 29 Nov 2024 09:54:56 GMT content-type application/x-javascript; charset=utf-8 vary Accept-Encoding cross-origin-embedder-policy-report-only require-corp;report-to="coep_report" priority u=3,i x-frame-options DENY strict-transport-security max-age=31536000; preload; includeSubDomains reporting-endpoints coop_report="https://www.facebook.com/browser_reporting/coop/?minimize=0", coep_report="https://www.facebook.com/browser_reporting/coep/?minimize=0", permissions_policy="https://www.facebook.com/ajax/browser_error_reports/" x-fb-content-md5 d30b66707862d58e2f72ec03da91477d cache-control public,max-age=31536000,stale-while-revalidate=3600,immutable timing-allow-origin * cross-origin-opener-policy same-origin-allow-popups x-fb-connection-quality UNKNOWN; q=-1, rtt=-1, rtx=0, c=20, mss=1232, tbw=1825, tp=5, tpl=0, uplat=1, ullat=-1 x-fb-debug LNOxlAg5DEoSnIKPUNTGVMcq8bl9jSkqDNJHMnF0o21LNVmjYe0MCL2TYuqrbEqCstWPFbaD9PV2wJtAqs/MlA== cross-origin-resource-policy cross-origin permissions-policy accelerometer=(), attribution-reporting=(), autoplay=(), bluetooth=(), camera=(), ch-device-memory=(), ch-downlink=(), ch-dpr=(), ch-ect=(), ch-rtt=(), ch-save-data=(), ch-ua-arch=(), ch-ua-bitness=(), ch-viewport-height=(), ch-viewport-width=(), ch-width=(), clipboard-read=(), clipboard-write=(), compute-pressure=(), display-capture=(), encrypted-media=(), fullscreen=(self), gamepad=(), geolocation=(), gyroscope=(), hid=(), idle-detection=(), interest-cohort=(), keyboard-map=(), local-fonts=(), magnetometer=(), microphone=(), midi=(), otp-credentials=(), payment=(), picture-in-picture=(), private-state-token-issuance=(), publickey-credentials-get=(), screen-wake-lock=(), serial=(), shared-storage=(), shared-storage-select-url=(), private-state-token-redemption=(), usb=(), unload=(self), window-management=(), xr-spatial-tracking=();report-to="permissions_policy" document-policy force-load-at-top access-control-allow-origin * content-length 74737 origin-agent-cluster ?1
GET H2	200	widget_iframe.2f70fb173b9000da126c79afe2098f02.html platform.twitter.com/widgets/ Frame 9F7C	0 0	123ms 40ms	Document text/html	146.75.120.157 FASTLY
General Check archive.org Show headers Download Go to Full URL https://platform.twitter.com/widgets/widget_iframe.2f70fb173b9000da126c79afe2098f02.html?origin=https%3A%2F%2Fmwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com Requested by Host: platform.twitter.com URL: https://platform.twitter.com/widgets.js Protocol H2 Security TLS 1.3, , AES_128_GCM Server 146.75.120.157 Frankfurt am Main, Germany, ASN54113 (FASTLY, US), Reverse DNS Software / Resource Hash Request headers Referer https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Upgrade-Insecure-Requests 1 User-Agent Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Response headers accept-ranges bytes access-control-allow-methods GET access-control-allow-origin * cache-control public, max-age=315360000 content-encoding gzip content-length 105429 content-type text/html; charset=utf-8 date Fri, 29 Nov 2024 09:54:57 GMT etag "81267302efdfb3e4524a22631a8fc99e+gzip" last-modified Mon, 11 Dec 2023 17:19:49 GMT p3p CP="CAO DSP LAW CURa ADMa DEVa TAIa PSAa PSDa IVAa IVDa OUR BUS IND UNI COM NAV INT" tw-cdn FT vary Accept-Encoding x-amz-server-side-encryption AES256 x-cache HIT, HIT x-served-by cache-iad-kiad7000164-IAD, cache-fra-etou8220027-FRA
GET H2	200	cb=gapi.loaded_0 Show response apis.google.com/_/scs/abc-static/_/js/k=gapi.lb.de.luG_e8tZd4w.O/m=plusone/rt=j/sv=1/d=1/ed=1/am=AAAg/rs=AHpOoo-Oe4c_8IU7-7pJoJmmZXcVlzLgfg/	154 KB 53 KB	44ms 43ms	Script text/javascript	2a00:1450:4001:813::200e GOOGLE
General Check archive.org Show headers Download Go to Full URL https://apis.google.com/_/scs/abc-static/_/js/k=gapi.lb.de.luG_e8tZd4w.O/m=plusone/rt=j/sv=1/d=1/ed=1/am=AAAg/rs=AHpOoo-Oe4c_8IU7-7pJoJmmZXcVlzLgfg/cb=gapi.loaded_0?le=scs Requested by Host: apis.google.com URL: https://apis.google.com/js/plusone.js Protocol H2 Security TLS 1.3, , AES_128_GCM Server 2a00:1450:4001:813::200e Frankfurt am Main, Germany, ASN15169 (GOOGLE, US), Reverse DNS Software sffe / Resource Hash fe3d0d15b521936c43b0fa493cdbbc90f511d82cda4495aff93aaee609b9beb0 Security Headers Name Value X-Content-Type-Options nosniff X-Xss-Protection 0 Request headers User-Agent Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Referer https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Response headers content-encoding gzip age 126396 report-to {"group":"social-frontend-mpm-access","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/social-frontend-mpm-access"}]} x-content-type-options nosniff expires Thu, 27 Nov 2025 22:48:20 GMT alt-svc h3=":443"; ma=2592000,h3-29=":443"; ma=2592000 date Wed, 27 Nov 2024 22:48:20 GMT last-modified Mon, 11 Nov 2024 18:50:50 GMT content-type text/javascript; charset=UTF-8 vary Accept-Encoding cache-control public, max-age=31536000 cross-origin-opener-policy same-origin; report-to="social-frontend-mpm-access" cross-origin-resource-policy cross-origin content-security-policy-report-only require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/social-frontend-mpm-access accept-ranges bytes access-control-allow-origin * content-length 54124 x-xss-protection 0 server sffe
GET H/1.1	200 OK	favicon.ico mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/	16 KB 16 KB	251ms 251ms	Other image/x-icon	3.220.54.114 AMAZON-AES
General Check archive.org Show headers Download Go to Full URL https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/favicon.ico Protocol HTTP/1.1 Security TLS 1.3, , AES_256_GCM Server 3.220.54.114 Ashburn, United States, ASN14618 (AMAZON-AES, US), Reverse DNS ec2-3-220-54-114.compute-1.amazonaws.com Software / Resource Hash 90877e2b3e1f28e2f4682736dcb76ae0931207bf6c431df91ed118e42878401e Request headers User-Agent Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Referer https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Response headers Accept-Ranges bytes Content-Length 16017 Date Fri, 29 Nov 2024 09:54:57 GMT ETag "6748c949-3e91" Content-Type image/x-icon Last-Modified Thu, 28 Nov 2024 19:49:29 GMT Connection keep-alive

27 JavaScript Global Variables

These are the non-standard "global" variables defined on the window object. These can be helpful in identifying possible client-side frameworks and code.

object| 0 object| 1 function| $ function| jQuery function| Cookies object| FB object| __core-js_shared__ object| Sslac object| IN object| __twttrll object| twttr object| __twttr object| gapi object| ___jsl object| __buffer object| _F_toggles object| osapi object| gadgets object| iframer object| __gapi_jstiming__ object| shindig function| ToolbarApi object| iframes function| IframeBase function| Iframe function| IframeProxy function| IframeWindow

1 Cookies

Cookies are little pieces of information stored in the browser of a user. Whenever a user visits the site again, he will also send his cookie values, thus allowing the website to re-identify him even if he changed locations. This is how permanent logins work.

			Domain/Path	Expires	Name / Value
			mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/	1970-01-21 01:21:14	Name: bz-cookie Value: s%3A44knEKxnVWo3YszF8uMlaIjcfq3UBjK-.QwyEgf25PeWC%2BGLcZrNiHk6TvzIux9L3XrQoDwdk%2FTw

1 Console Messages

A page may trigger messages to the console to be logged. These are often error messages about being unable to load a resource or execute a piece of JavaScript. Sometimes they also provide insight into the technology behind a website.

Source	Level	URL Text
network	error	URL: https://mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com/ Message: Failed to load resource: the server responded with a status of 404 (Not Found)

Security Headers

This page lists any security headers set by the main page. If you want to understand what these mean and how to use them, head on over to this page

Header	Value
Strict-Transport-Security	max-age=31536000; includeSubDomains
X-Content-Type-Options	nosniff
X-Xss-Protection	0

Indicators

This is a term in the security industry to describe indicators such as IPs, Domains, Hashes, etc. This does not imply that any of these indicate malicious activity.

apis.google.com
cdn-static.bizzabo.com
cdnjs.cloudflare.com
connect.facebook.net
fonts.googleapis.com
fonts.gstatic.com
mwww.autodiscover.ews.blog.blog.blog.beta.optimize2021.com
platform.linkedin.com
platform.twitter.com
104.17.24.14
146.75.120.157
157.240.253.1
172.217.18.3
2600:9000:225e:ac00:8:21ec:c100:93a1
2606:2800:233:66b5:799a:7cd3:f74d:7071
2a00:1450:4001:800::200a
2a00:1450:4001:813::200e
3.220.54.114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