NsLookup.io vs Visual Sentinel
NsLookup.io
nslookup.ioVisual Sentinel
visualsentinel.comSide by side
| Figure | NsLookup.io | Visual Sentinel |
|---|---|---|
| Price from | — | $4.50/mo |
| Free plan | — | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | — | Yes |
| Plans published | 1 | 15 |
| Spec score · DNS Monitoring Software | 6.7 (#35) | 8.5 (#7) |
| Intended users | The page presents DNS monitoring for organizations monitoring records for security and compliance. | The maker describes the product as serving small teams, agencies, and site owners. |
| Maker | The contact page identifies Nslookup.io as a product of Nslookup LLC, registered at 8 The Green, #7668, Dover, DE 19901. | Acefina LLC builds and operates Visual Sentinel, which the maker says was founded and built by Rai Ansar. |
| Monitoring | Users can configure check intervals, and the page describes change detection as real-time. | The service offers uptime, screenshot-based visual comparison, SSL, DNS, performance, content, API, endpoint, and server monitoring. |
| Privacy | The privacy policy says NsLookup processes but does not store IP addresses to serve requested web pages, and may retain IP query counts for up to one hour to prevent abuse. | The privacy policy says Visual Sentinel does not sell, trade, or rent personal information and deletes account data within 30 days after account closure. |
| Purpose | DNS Monitoring tracks DNS record changes for domains and alerts users when records are modified, added, or removed. | Visual Sentinel monitors websites and servers and detects visual page changes that ordinary uptime checks may miss. |
| Support | The contact page invites users to report bugs, suggest features, or share feedback, and lists an email contact. | The company says human support replies typically within 24 hours by email. |
Plans
Visual Sentinel
- Solo$6 a month
- Solo$54 a year
- Starter$12 a month
- Starter$108 a year
- Business$39 a month
- Business$351 a year
- FreeFree
- Agency$149 a month
- Agency$1,341 a year
- FreeFree
In their own words
NsLookup.io
NsLookup.io has no write-up on Specifiction yet; its figures are above.
Visual Sentinel
Visual Sentinel monitors websites and servers, including page changes that ordinary uptime checks may miss. Its monitoring covers uptime, screenshot-based visual comparison, SSL, DNS, performance, content, APIs, endpoints, and servers. For visual checks, it captures a page in a browser and compares the screenshot with a prior baseline. Users can exclude changing page elements with CSS selectors and set the amount of change needed to flag a capture. Failed uptime checks are repeated; a site is marked down only if it fails from all selected regions. Alerts can go to email, Slack, Discord, WhatsApp, Telegram, Microsoft Teams, PagerDuty, OpsGenie, webhooks, Prometheus, and browser push. The REST API manages monitors, incidents, status pages, maintenance windows, reports, and notification channels; API access is listed for Business and Agency. The Free plan costs nothing and includes three monitors, 10-minute checks, and one status page. Solo costs $6 a month. Visual Sentinel is built and operated by Acefina LLC and is intended for small teams, agencies, and site owners.