Uptime SLA with a figure in Web accessibility
"High availability" is marketing. "99.9 %" is a commitment.
Read the percentage with its scope: use the uptime calculator for a time-based example and the SLA review checklist for the questions behind it.
1 of 31 companies we measured here publish it, that is 3%. Last checked 2026-10-18.
3% here against 3% across every category we measure. Web accessibility sits exactly at the overall share for this criterion.
This page counts companies, not product entries: a company with two products in this category is one company here and two rows below.
Back to Uptime SLA with a figure across all categories, or to Web accessibility.
- Found1
- Not found at checked addresses30
- Not measured2
33 companies in total. Unmeasured companies are excluded from the published share.
Published
An availability commitment with a figure.
| Vendor | What we found |
|---|---|
| Silktide | https://silktide.com/legal/service-level-agreement/Checked |
No uptime figure found.
We reached at least one address for each of these vendors and none of them carried it. That is what we found at the addresses we checked, on the date we checked them, and not a statement about what the vendor has.
| Vendor | What we found |
|---|---|
| A11yWatch | 6 addresses checkedChecked |
| Access Armada | 6 addresses checkedChecked |
| accessiBe | 6 addresses checkedChecked |
| Accessibility Cloud | 6 addresses checkedChecked |
| Accessibility Insights | 6 addresses checkedChecked |
| AccessiWay | 6 addresses checkedChecked |
| Adally | 6 addresses checkedChecked |
| Agastya | 6 addresses checkedChecked |
| ARIA Cloud | 6 addresses checkedChecked |
| BarrierBreak | 6 addresses checkedChecked |
| Crownpeak | 6 addresses checkedChecked |
| Deque | 6 addresses checkedChecked |
| Digital Accessibility Centre | 6 addresses checkedChecked |
| DubBot | 6 addresses checkedChecked |
| EqualWeb | 6 addresses checkedChecked |
| Evinced | 6 addresses checkedChecked |
| Eye-Able | 6 addresses checkedChecked |
| Fable | 6 addresses checkedChecked |
| Level Access | 6 addresses checkedChecked |
| Pope Tech | 6 addresses checkedChecked |
| Recite Me | 6 addresses checkedChecked |
| Sa11y | 6 addresses checkedChecked |
| Siteimprove | 6 addresses checkedChecked |
| Stark | 6 addresses checkedChecked |
| Testbirds | 6 addresses checkedChecked |
| UsableNet | 6 addresses checkedChecked |
| UserWay | 6 addresses checkedChecked |
| WAVE | 6 addresses checkedChecked |
| WebAIM | 6 addresses checkedChecked |
| Zoonou | 6 addresses checkedChecked |
Not measured
We could not look at these, or their robots.txt asks us not to. That says something about our measurement, not about them, and they are left out of the percentage above.
Other criteria in Web accessibility
- Data processing agreement
- Subprocessor list
- Data location stated
- Status page with history
- Public pricing
- Certifications named
- HTTPS enforced with HSTS
- No third-party tracking before consent
- security.txt (RFC 9116)
- Notice before subprocessors change
- Named privacy contact
Uptime SLA with a figure in related categories
Found something we missed? Tell us. A correction moves that vendor into our next nightly run. That run reads the same fixed addresses we check for every vendor, not the address you send.