Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 51.140.191.223 |
| Compression | gzip |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 51.140.191.223
Compression gzip
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://nls.uk:443 | 301 | HTTP/1.1 301 Moved Permanently |
| 2 | https://www.nls.uk/ | 200 | HTTP/2 200 |
#1 URL https://nls.uk:443
HTTP Status Code 301
Status HTTP/1.1 301 Moved Permanently
#2 URL https://www.nls.uk/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 22.9 ms |
| TCP Connect | 24.4 ms |
| TLS Handshake | 8.6 ms |
| Time To First Byte (TTFB) | 75.5 ms |
| Content Download | 0.6 ms |
| Total Response Time | 76.2 ms |
DNS Lookup 22.9 ms
TCP Connect 24.4 ms
TLS Handshake 8.6 ms
Time To First Byte (TTFB) 75.5 ms
Content Download 0.6 ms
Total Response Time 76.2 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=31536000; includeSubDomains |
| CSP | ✔ Configured |
| X-Frame-Options | ✔ SAMEORIGIN |
| X-Content-Type-Options | ✔ nosniff |
| Referrer Policy | strict-origin-when-cross-origin |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=31536000; includeSubDomains
CSP ✔ Configured
X-Frame-Options ✔ SAMEORIGIN
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Referrer Policy strict-origin-when-cross-origin
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | National Library of Scotland | Home |
| Meta Description | Learn about who we are and what we do at the National Library of Scotland. Read stories, donate, request an item, or find out how to research our collections. |
| Canonical | https://www.nls.uk/ |
| Open Graph Title | National Library of Scotland | Home |
| Open Graph Description | Learn about who we are and what we do at the National Library of Scotland. Read stories, donate, request an item, or find out how to research our collections. |
| Open Graph Image | https://www.nls.uk/static/img/og-image.png |
Title National Library of Scotland | Home Meta Description Learn about who we are and what we do at the National Library of Scotland. Read stories, donate, request an item, or find out how to research our collections. Canonical https://www.nls.uk/ Open Graph Title National Library of Scotland | Home Open Graph Description Learn about who we are and what we do at the National Library of Scotland. Read stories, donate, request an item, or find out how to research our collections. Open Graph Image https://www.nls.uk/static/img/og-image.png Detected Technologies
| Technology | Google Analytics Google Tag Manager |
Technology Google Analytics Google Tag Manager
HTTP Headers
| Date
| Tue, 21 Jul 2026 03:09:43 GMT |
| Content-type
| text/html; charset=utf-8 |
| Content-encoding
| gzip |
| Set-cookie
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| Referrer-policy
| strict-origin-when-cross-origin |
| X-content-type-options
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| X-download-options
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Meta Tags
| Viewport | width=device-width, initial-scale=1.0, shrink-to-fit=no |
| Apple-mobile-web-app-title | National Library of Scotland |
| Application-name | National Library of Scotland |
| Description | Learn about who we are and what we do at the National Library of Scotland. Read stories, donate, request an item, or find out how to research our collections. |
| Detectify-verification | a2260c138053eb8a95721cdf4dee727a |
Date Tue, 21 Jul 2026 03:09:43 GMT
Content-type text/html; charset=utf-8
Content-encoding gzip
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