Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 104.21.25.112 |
| Server Software | cloudflare |
| CDN | Cloudflare |
| Compression | gzip |
|
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 104.21.25.112
Server Software cloudflare
CDN Cloudflare
Compression gzip
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 | 13.2 ms |
| TCP Connect | 15.1 ms |
| TLS Handshake | 11.2 ms |
| Time To First Byte (TTFB) | 97.8 ms |
| Content Download | 2.5 ms |
| Total Response Time | 100.3 ms |
DNS Lookup 13.2 ms
TCP Connect 15.1 ms
TLS Handshake 11.2 ms
Time To First Byte (TTFB) 97.8 ms
Content Download 2.5 ms
Total Response Time 100.3 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 | Underscore.js |
| Canonical | https://underscorejs.org/ |
Title Underscore.js
Canonical https://underscorejs.org/
Detected Technologies
| Technology | jQuery Google Analytics Cloudflare PHP Node.js |
Technology jQuery Google Analytics Cloudflare PHP Node.js
HTTP Headers
| Date
| Thu, 20 Aug 2026 14:49:18 GMT |
| Content-type
| text/html; charset=utf-8 |
| Server
| cloudflare |
| Last-modified
| Tue, 14 Apr 2026 20:39:00 GMT |
| Access-control-allow-origin
| * |
| Expires
| Thu, 06 Aug 2026 02:05:05 GMT |
| Cache-control
| max-age=600 |
| Report-to
| {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=PR3m%2BoCjeOCAQX57%2BGT%2FtyyMdGulTXqcVc6aOlMfZWTvnmR1ib0C%2BgAn0xlk74eGyFPcOz7q3hKFN0e2Sb0iZRS2qEZDZmnP88T5f4z%2FsXRP%2BUC6rOskFqA7opOXgRdcA1Tz%2BE%2BrWVyt%2FTiXAPbl"}]} |
| X-proxy-cache
| MISS |
| X-github-request-id
| D83C:2696A1:75E494F:7658194:6A73E979 |
| X-github-edge-region
| fra |
| Nel
| {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800} |
| Age
| 345 |
| Via
| 1.1 varnish |
| X-served-by
| cache-fra-etou8220153-FRA |
| X-cache
| HIT |
| X-cache-hits
| 0 |
| X-timer
| S1787237358.978956,VS0,VE2 |
| Vary
| Accept-Encoding |
| X-fastly-request-id
| ff1fe9a68bf1dd7ae49b6ec165fbf0083e755867 |
| Cf-cache-status
| DYNAMIC |
| Content-encoding
| gzip |
| Cf-ray
| a2e2342f2df6d10c-CDG |
| Alt-svc
| h3=":443"; ma=86400 |
Meta Tags
| Content-type | text/html;charset=UTF-8 |
| X-UA-Compatible | chrome=1 |
| Viewport | width=device-width, initial-scale=1.0 |
Date Thu, 20 Aug 2026 14:49:18 GMT
Content-type text/html; charset=utf-8
Server cloudflare
Last-modified Tue, 14 Apr 2026 20:39:00 GMT
Access-control-allow-origin *
Expires Thu, 06 Aug 2026 02:05:05 GMT
Cache-control max-age=600
Report-to {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=PR3m%2BoCjeOCAQX57%2BGT%2FtyyMdGulTXqcVc6aOlMfZWTvnmR1ib0C%2BgAn0xlk74eGyFPcOz7q3hKFN0e2Sb0iZRS2qEZDZmnP88T5f4z%2FsXRP%2BUC6rOskFqA7opOXgRdcA1Tz%2BE%2BrWVyt%2FTiXAPbl"}]}
X-proxy-cache MISS
X-github-request-id D83C:2696A1:75E494F:7658194:6A73E979
X-github-edge-region fra
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Age 345
Via 1.1 varnish
X-served-by cache-fra-etou8220153-FRA
X-cache HIT
X-cache-hits 0
X-timer S1787237358.978956,VS0,VE2
Vary Accept-Encoding
X-fastly-request-id ff1fe9a68bf1dd7ae49b6ec165fbf0083e755867
Cf-cache-status DYNAMIC
Content-encoding gzip
Cf-ray a2e2342f2df6d10c-CDG
Alt-svc h3=":443"; ma=86400
