Available Reports
Last Update
April, 2024
Security Profile
- Live site
- Secure connection (HTTPS)
- Certificate valid
- No outdated techologies detected
users.nber.org
website information and technology stack| Web technologies detected on this domain | 9 technologies |
| Web technologies detected across all nber.org subdomains | 51 technologies |
| Website rank | 180,977 |
| Website Location |  United States |
| Language | English |
| Last technology update | April, 2024 |
| Total nber.org subdomain count | 23 subdomains |
| Top ranking subdomain | |
| IP Address | 198.71.6.39 |
| IP Lookup | 6 websites share 198.71.6.39 IP address. |
| Autonomous System Number (ASN) | AS26287 (NBER-AS) |
| Total linking domains | 33 domains |
| Total linking IP | 27 IPs |
| Certificate Issuer | DigiCert Inc |
| Certificate Expiration Date | July, 2024 (Valid ) |
Technology Stack
List of detected technologies used on the website.| Technology | Technology Type | Version | First detected | |
|---|---|---|---|---|
 Apache | Web Servers | 2.4.53 | March, 2024 | |
 DigiCert | Certificate Authority | March, 2024 | ||
 FreeBSD | Operating Systems | March, 2024 | ||
 GeoTrust CA | Certificate Authority | March, 2024 | ||
 ISO-8859-1 | Document Encoding | March, 2024 | ||
| mod_apreq2 | Web Server Extensions | 2.8 | April, 2024 | |
 mod_perl | Web Server Extensions | 2.0.12 | March, 2024 | |
 OpenSSL | Web Server Extensions | 1.1.1 | March, 2024 | |
 Perl | Programming Languages | 5.34.3 | March, 2024 |
Change History
List of 6 detected changes in the website technology stack within the last 3 months (out of 1 total).| Technology | Technology Type | Version | Change | Date |
|---|---|---|---|---|
| mod_apreq2 | Web Server Extensions | 2.8 | Upgrade from 'unknown' to 2.8 | Apr, 2024 |
Uncommon response headers
List of uncommon response headers that were used by the website.| Header | Value |
|---|---|
| Server | Apache/2.4.53 (FreeBSD) OpenSSL/1.1.1t-freebsd mod_apreq2-20090110/2.8.0 mod_perl/2.0.12 Perl/v5.34.3 |