GTmetrix vs Opera vs SigmaOS vs Web Vitals
| Attribute | ||||
|---|---|---|---|---|
| Category | SEO & Search Marketing | Productivity & Collaboration | Productivity & Collaboration | Web & Product Analytics |
| Pricing | Paid | Free tier | Free tier | Free tier |
| Starting price | $4.99/month | Free | Free | $0/month |
| Free tier | No | Yes | Yes | Yes |
| Free trial | Yes | No | No | No |
| Deployment | — | — | — | — |
| API available | Unknown | Unknown | Unknown | Unknown |
| Platforms | — | — | — | — |
| Certifications | — | — | — | — |
| Integrations | — | — | — | — |
| Company | Founded 2009 | Founded 1995 | — | — |
| Feature attributes | ||||
Also consider
Unknown values show as “Unknown”/“—”. Nothing is inferred — see each tool page for sources.