Visual Sentinel vs Oh Dear

It depends on what you need to catch. Oh Dear is the broader choice for checks behind the page: broken links and mixed content, scheduled tasks, application health, sitemaps and DNS blocklists are on every plan. Visual Sentinel is the better fit when the risk is a page that loads but looks wrong to visitors: it compares scheduled screenshots with a saved version, keeps page text history from Starter, links a server agent to website incidents and sends WhatsApp alerts. Pick by the failures your sites or clients care about.

On the pricing and feature pages we checked on October 16, 2026, Oh Dear lists a daily crawl for broken pages and mixed content, scheduled task (cron) monitoring, application health checks read from one protected endpoint (with Laravel and PHP packages, and a JSON format any stack can return), sitemap monitoring, DNS blocklist checks and AI browser checks that follow plain-English instructions. Visual Sentinel does not offer those checks.

Scheduled screenshot comparison: Visual Sentinel renders the page in a real browser, compares it with a saved version and alerts with before, after and difference images when the change crosses your threshold. Starter and higher plans also keep history for the page text you choose. A Linux or macOS server agent records CPU, memory, disk and network beside website incidents, and WhatsApp alerts are on every paid plan. Oh Dear’s pages did not list these on October 16, 2026. Its AI browser checks can attach a screenshot to a result, but the pages did not describe comparing it with a saved version.

Oh Dear prices by the number of sites and servers, with every feature on every plan: Solo is €15 a month for 2, Freelance €49 for 10, Studio €99 for 25, Agency €149 for 50 and Scale €399 for 200, in euros before VAT, with two months free on yearly billing. Visual Sentinel prices by plan: Solo $15 a month for 10 monitors with 1 visual site, Starter $30 for 15 monitors, Business $80 for 60 and Agency $300 for 300, 15% less billed yearly. The units differ (sites and servers versus monitors), so price the exact sites and checks you need on both.

Both brand what clients see, in different ways. Oh Dear puts your logo and domain on status pages on every plan, emails a monthly report per site with your logo and accent color, gives clients read-only access to their own sites and runs a reseller program. Its reports keep a small powered-by mark, and Oh Dear says they are not fully white-labeled. Visual Sentinel sends scheduled client reports from Business, and on Agency removes its branding from reports and status pages.

Oh Dear lists 12 channels: email, Slack, Microsoft Teams, Discord, Google Chat, Telegram, SMS (through your own Vonage account), Pushover, ntfy, PagerDuty, Opsgenie and webhooks. Visual Sentinel paid plans include email, WhatsApp, Slack, Discord, Telegram, Microsoft Teams, PagerDuty, Opsgenie, webhooks, Prometheus and browser push. Oh Dear has SMS and Google Chat, Visual Sentinel has WhatsApp, and both send to Telegram.

Oh Dear starts every plan with a free trial that needs no card to begin, and offers a 30-day money-back guarantee. New Visual Sentinel workspaces get a free first check of their site at signup, then a 7-day trial with a card (charged on day 8 unless cancelled) or a subscription, with a 14-day money-back guarantee on every paid plan.

Yes. One way to split the work: Oh Dear for broken links, scheduled tasks and application health, and Visual Sentinel for screenshot comparison and server context on the pages that matter most. Both check uptime, certificates, DNS and status pages, so decide which tool sends the alert for each check to avoid duplicate notifications.

Visual Sentinel has no importer for Oh Dear exports; its monitor import takes a CSV with Name and URL columns. Add your site URLs, reconnect your alert channels, and run both services side by side until the new checks and alerts are verified.