UP

office.com

Query on crt.sh

3,392
Total Certs
All time
1,356
Subdomains
Discovered
0
Active
Currently valid
3,392
Expired
Past not_after
Date Range
Earliest cert (not_before)2010-07-01
Latest expiry (not_after)2021-12-31
Newest cert (entry_timestamp)2021-03-04 10:56
Total unique SANs1,519
Issuers (top 10)
Let's Encrypt / Let's Encrypt Authority X3 508
DigiCert Inc / DigiCert Cloud Services CA-1 1,179
Microsoft Corporation / Microsoft IT SSL SHA2 273
Microsoft Corporation / Microsoft IT TLS CA 1 195
Microsoft Corporation / Microsoft IT TLS CA 2 165
Microsoft Corporation / Microsoft IT TLS CA 4 172
Microsoft Corporation / Microsoft IT TLS CA 5 157
Microsoft Corporation / Microsoft RSA TLS CA 01 112
Microsoft Corporation / Microsoft RSA TLS CA 02 111
GlobalSign nv-sa / GlobalSign Organization Validation CA - SHA256 - G3 231
Sample Names (top 20)
*.delve.office.com.rantec1.o365---lab.ransecurityshn2.myshn.net
*.office.com.rantec1.o365---lab.ransecurityshn2.myshn.net
*.www--office.com
www--office.com
blogs.www--office.com
*.ifttt.office.com
ifttt.office.com
reports.office.com
blogs.office.com
k--office.com
www.k--office.com
*.loki.delve.office.com
loki.delve.office.com
*.setup--office.com
setup--office.com
test.akv.office.com
www.h-nishikawa--office.com
*.manage.staffhub.office.com
mail.office--office.com
office--office.com
Last verified Jun 4, 2026 03:14 UTC · All CT domains · API · Data: crt.sh