What powers 
g4s.com?
Last seen Sep 2026 · 138 technologies across 40 categories
Advertising
Analytics
Authentication
CDN
CMS
Comment systems
Cookie compliance
Databases
Ecommerce
Editors
Font scripts
IaaS
Issue trackers
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Live chat
LMS
Load balancers
Maps
Miscellaneous
Mobile frameworks
Operating systems
PaaS
Performance
Programming languages
Reverse proxies
Rich text editors
RUM
Search engines
Security
Tag managers
UI frameworks
Video players
Web frameworks
Web server extensions
Web servers
Webmail
Widgets
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
- Sep 2026 * removed from robots.txt
- Sep 2026 robots.txt removed
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| gs4 | #2 | 390 |
| universal tracking | #74 | 160 |
| allied universal security services | #39 | 130 |
| wackenhut corporation | #5 | 110 |
| universal parcel tracking | #61 | 85 |
| allied universal website | #3 | 38 |
| securitas careers | #65 | 35 |
| g4s cash solution | #1 | 33 |
| securitas security services usa | #34 | 31 |
| wackenhut corp | #10 | 27 |
| 4 gs logo | #1 | 27 |
| security service | #92 | 23 |
| allied universal australia | #2 | 23 |
| g4s wackenhut | #3 | 23 |
| allied universal/g4s | #1 | 21 |
| g4s logo | #1 | 21 |
| group of security | #1 | 21 |
| gs4 solutions | #1 | 21 |
| group 4 security | #1 | 21 |
| d4s | #86 | 21 |
| the biggest security company in the world | #3 | 17 |
| security guard firm | #42 | 17 |
| g4s security guard | #3 | 17 |
| g4s careers | #4 | 17 |
| time in estonia | #89 | 16 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 90% desktop
- 10% phone
United Kingdom
India
Peru
Ireland
Colombia
South Africa
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
6.77 / 10 · ranked #58,112 of all domains
688 referring domains · OpenPageRank
Search traffic
2,800 est. monthly organic visits (US)
5,280 keywords in Google's top 30
Core Web Vitals
| LCP | 5.5 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 3200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Spanish
- CDN: Google
- Weight: 7.8 MB · 28 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Similar sites
northcarolina.edu 4 shared
pgfn.gov.br 4 sharedpref.okayama.jp 4 shared
kmew.co.jp 3 shared
Closest technology stacks among the highest-authority sites we track; "shared" counts the distinctive technologies in common.
Organisation
- G4S
- Founded: 1901
- Sector: private security company
- Country: United Kingdom
From Wikidata (CC0).
Infrastructure
- Registered Dec 1999 (26 years) via SafeNames Ltd., renews Dec 2026
- Hosted on LINK11 Link11 GmbH (128.65.223.151)
- DNS: safenames.net
- Email: Google Workspace
- Email security: SPF (hard fail), no DMARC record
- SSL: Google Trust Services, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 36,298, 40 hosts
- Verified with: GlobalSign, Google
DNS records as swept Sep 2026, certificate as seen Sep 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| riskassessment.g4s.com | 31 |
| jobs.g4s.com | 28 |
| admin-app.gt.g4s.com | 23 |
| canadajobs.g4s.com | 22 |
| css-surveys.g4s.com | 22 |
| rs.javelin.g4s.com | 21 |
| technologycareers.g4s.com | 21 |
| eventsjobsuk.g4s.com | 20 |
| co.javelin.g4s.com | 19 |
| connect.g4s.com | 19 |
| jobsat.g4s.com | 19 |
| pe.javelin.g4s.com | 19 |
| sam.g4s.com | 19 |
| servicios.gt.g4s.com | 19 |
| th.javelin.g4s.com | 19 |
| mylearning.pe.g4s.com | 18 |
| barclayscollect.g4s.com | 16 |
| miportal.gt.g4s.com | 16 |
| myworkwear.g4s.com | 16 |
| bh.javelin.g4s.com | 15 |
| jobs.uk.g4s.com | 15 |
| ma.javelin.g4s.com | 15 |
| careers.intl.g4s.com | 14 |
| communications.g4s.com | 14 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Zipkin Jun 2026
- dropped OpenLayers May 2026
- dropped Clipboard.js Mar 2026
- dropped Highlight.js Mar 2026
- dropped Google AdSense Feb 2026
- detected Zipkin Nov 2025