What does Lemwatch monitor?

Lemwatch runs 20+ automated checks per site: uptime, response time, SSL/TLS expiry, domain expiry, DNS changes, sitemap health, broken links, content changes, SEO audits, mobile usability, security headers, and more.

Yes. The free tier monitors up to 5 sites. Pro is $19/month for 50 sites and Agency is $59/month for 100 sites, both with full feature access.

How is Lemwatch different from UptimeRobot or Pingdom?

Lemwatch bundles uptime, change detection, SEO audits, security scans, and a public API in one platform — features competitors charge separately for. It also includes team workspaces, white-labelled status pages, and a webhook system out of the box.

Does Lemwatch send alerts?

Yes. Lemwatch supports email, browser push, webhooks, and per-site notification routing so the right person hears about the right incident.

Is there a public API?

Yes. Pro and Agency plans get a public REST API with webhooks for sites, checks, incidents, and reports.

What kinds of RSS feeds can LemWatch monitor?

Any publicly-accessible RSS 2.0, Atom 1.0 or JSON Feed URL. Common uses: competitor blogs, news outlets, GitHub release feeds, npm package release feeds, security advisory feeds (NVD, CVE), podcast feeds, sitemap RSS variants.

How is this different from a news reader?

News readers are for humans to browse. LemWatch is a monitoring tool that fires programmatic alerts — Slack messages, webhooks, emails — when specific items appear or when existing items change. Ideal for competitive intelligence, security teams and content marketing.

Can I filter which items trigger alerts?

Yes. Set keyword filters (title contains, body contains) so only items matching your interest fire alerts. Great for tracking a competitor blog for posts about specific products or topics without alert fatigue.

Does it detect when an item is edited after publication?

Yes. LemWatch hashes each item and detects when an existing item's title, description or content changes — common on news sites that quietly correct articles, or blogs that update posts with new information.

How fast are new-item alerts?

6-hourly on Free, hourly on Pro, and 15-minute intervals on Agency. For most competitive-intel and content-tracking use cases, hourly is more than enough.

Is RSS monitoring separate from visual monitoring?

No — it's part of the same content monitoring suite. One LemWatch site can have visual screenshot monitoring, content diffing, PDF monitoring, sitemap monitoring and RSS monitoring simultaneously, all with unified alerting.

Feature

RSS feed monitoring with instant alerts

Track competitor blogs, news outlets, GitHub releases and security advisories. Get Slack/webhook alerts the moment a new item appears — or when an existing item is edited.

RSS monitoring, done right

Any RSS or Atom feed

Monitor RSS 2.0, Atom 1.0 and JSON Feed sources. Blog feeds, news feeds, podcast feeds, GitHub release feeds, security advisories — anything with a feed URL.

Instant new-item alerts

Fire an alert the moment a new item appears in the feed. Slack, Discord, Teams, Telegram, email or webhook — routed however you want.

Item change detection

Beyond just new items — detect when an existing item's title, description or content is edited (common on news sites correcting stories).

Keyword filters

Only alert when the new item's title or body matches your keywords. Track competitor blog posts about specific topics without noise.

Structural + hash diffing

Hash-based detection catches every change; structural diffing pinpoints exactly which item and which field changed.

6-hourly (hourly on Pro)

Feed checks run every 6 hours by default and hourly on Pro. Custom intervals on Agency down to every 15 minutes.

SSRF-safe fetching

Every feed URL is validated against a strict SSRF blocklist so private networks and internal endpoints can't be reached.

Full history

30 days of item history on Pro, 90 days on Agency. Every change is timestamped and diff-viewable.

Last updated July 9, 2026

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