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Additional info for https://www.alanfeldstein.com
Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 160.153.94.71 |
| Server Software | Apache |
| Compression | gzip |
|
🔒 🟡 Mixed Content (1 HTTP resources) | The page is served over HTTPS but loads 1 resource(s) over HTTP. This may be blocked in modern browsers. |
|
ℹ 🔵 Missing HSTS | HTTP Strict Transport Security is not configured. Recommended for HTTPS sites. |
|
ℹ 🔵 Missing Content Security Policy | CSP is not configured. It helps prevent XSS attacks and content injection. |
|
ℹ 🔵 Missing X-Frame-Options | The site can be embedded in iframes by third parties (clickjacking risk). |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 160.153.94.71
Server Software Apache
Compression gzip
🔒 🟡 Mixed Content (1 HTTP resources) The page is served over HTTPS but loads 1 resource(s) over HTTP. This may be blocked in modern browsers.
ℹ 🔵 Missing HSTS HTTP Strict Transport Security is not configured. Recommended for HTTPS sites.
ℹ 🔵 Missing Content Security Policy CSP is not configured. It helps prevent XSS attacks and content injection.
ℹ 🔵 Missing X-Frame-Options The site can be embedded in iframes by third parties (clickjacking risk).
Performance
| DNS Lookup | 51.1 ms |
| TCP Connect | 196.3 ms |
| TLS Handshake | 292.1 ms |
| Time To First Byte (TTFB) | 649.7 ms |
| Content Download | 0.1 ms |
| Total Response Time | 649.8 ms |
DNS Lookup 51.1 ms
TCP Connect 196.3 ms
TLS Handshake 292.1 ms
Time To First Byte (TTFB) 649.7 ms
Content Download 0.1 ms
Total Response Time 649.8 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✘ Not configured |
| CSP | ⚠ Not configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ⚠ Not configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✘ Not configured
CSP ⚠ Not configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ⚠ Not configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Cosmic Horizon |
| Meta Description | Knows pre-silicon validation of 64-bit high-performance processor cores. Knows The SPARC Architecture Manual Version 9. Designing cycle-based SPARC simulator. |
Title Cosmic Horizon
Meta Description Knows pre-silicon validation of 64-bit high-performance processor cores. Knows The SPARC Architecture Manual Version 9. Designing cycle-based SPARC simulator.
Detected Technologies
Technology Apache
HTTP Headers
| Accept-ranges
| bytes |
| Vary
| Accept-Encoding |
| Content-encoding
| gzip |
| Content-length
| 2005 |
| Content-type
| text/html |
| Date
| Fri, 24 Jul 2026 08:38:30 GMT |
| Server
| Apache |
Meta Tags
| Generator | HTML Tidy for Solaris (vers 1st March 2004), see www.w3.org |
| Owner | alan@alanfeldstein.com |
| Author | Alan Feldstein |
| Rating | general |
| Description | Knows pre-silicon validation of 64-bit high-performance processor cores. Knows The SPARC Architecture Manual Version 9. Designing cycle-based SPARC simulator. |
| Keywords | cosmic horizon, java, java computing, solaris, sparc, sparc-v9, unix, computer systems, server, hardware, software, compiler, jdk, technical computing, scientific computing, high performance, computer architecture, microarchitecture, logic design, engineer, honors, computer engineering, microprocessor, processor, structural modeling, functional modeling, behavioral modeling, algorithm, jhdl, 64 bit, floating point, risc, core, processor core, simulation, simulator, simulate, Alan Feldstein, Feldstein |
| Content-Type | text/html; charset=utf-8 |
Accept-ranges bytes
Vary Accept-Encoding
Content-encoding gzip
Content-length 2005
Content-type text/html
Date Fri, 24 Jul 2026 08:38:30 GMT
Server Apache
Generator HTML Tidy for Solaris (vers 1st March 2004), see www.w3.org
Owner alan@alanfeldstein.com
Author Alan Feldstein
Rating general
Description Knows pre-silicon validation of 64-bit high-performance processor cores. Knows The SPARC Architecture Manual Version 9. Designing cycle-based SPARC simulator.
Keywords cosmic horizon, java, java computing, solaris, sparc, sparc-v9, unix, computer systems, server, hardware, software, compiler, jdk, technical computing, scientific computing, high performance, computer architecture, microarchitecture, logic design, engineer, honors, computer engineering, microprocessor, processor, structural modeling, functional modeling, behavioral modeling, algorithm, jhdl, 64 bit, floating point, risc, core, processor core, simulation, simulator, simulate, Alan Feldstein, Feldstein
Content-Type text/html; charset=utf-8
