What powers 
opencitylondon.com?
Last seen Sep 2026 · 24 technologies across 16 categories
Analytics
Google Analytics
since Apr 2019
Authentication
Facebook Login
since Jul 2021
CDN
Google Hosted Libraries
since Feb 2022
jsDelivr
since Mar 2026
CMS
Databases
MySQL
since Apr 2019
MailChimp
since Apr 2019
Font scripts
Google Font API
since Mar 2024
JavaScript libraries
Miscellaneous
Programming languages
PHP
since Apr 2019
Security
Really Simple SSL & Security
since Apr 2024
SEO
Video players
Plyr
since Jul 2022
Web servers
Nginx
since Aug 2019
Webmail
Microsoft 365
since Aug 2022
WordPress plugins
MonsterInsights
since Feb 2024
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 79% desktop
- 21% phone
United Kingdom
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #339,402 of all domains
175 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- Weight: 4.5 MB · 55 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Open City Documentary Festival
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on VIRTUAL1 (193.117.184.38)
- DNS: reg365.net
- Email: Microsoft 365
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 4096, expires Jan 2027
- Common Crawl link graph: rank 520,358, 3 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped cdnjs Apr 2026
- dropped Cloudflare Apr 2026
- dropped GSAP Apr 2026
- dropped Priority Hints Apr 2026
- detected jsDelivr Mar 2026
- detected Lenis Mar 2026