Little Warden vs Sitebulb in 2026: Change monitoring vs a full technical SEO crawler
Little Warden watches for domain expiry, SSL, and robots.txt changes across a client portfolio. Sitebulb crawls a site and hands you 300+ prioritized fixes. They rarely compete for the same budget line.
Little Warden
Sitebulb- Sitebulb crawls sites and surfaces 300+ prioritized SEO hints. Little Warden does not crawl at all; it monitors a fixed URL list for changes on a schedule.
- Little Warden covers domain expiry, SSL certificate status, and robots.txt changes, none of which are things a one-off Sitebulb crawl would catch between audits.
- JavaScript rendering is included on every Sitebulb plan, including the $18/month Lite tier, with no separate rendering add-on required.
- Little Warden routes alerts through Slack, email, API, and webhooks. Sitebulb has no comparable real-time alerting layer between scheduled or manual crawls.
- Sitebulb has announced an MCP server, currently in a waitlist phase, for querying crawl data through AI tools. This is about interrogating existing audit data, not tracking brand visibility in AI answers.
- Little Warden starts at £24.99/month for 20 monitored URLs. Sitebulb Lite starts at $18/month for crawls up to 10,000 URLs, with Cloud scaling to 10 million URLs per audit.
Little Warden and Sitebulb both get filed under "technical SEO tools," but they answer different questions. Sitebulb crawls a website and tells you what is wrong with it right now, ranking over 300 issues by priority so you know what to fix first. Little Warden does not crawl anything; it watches a list of URLs on a schedule and tells you when something changes, whether that is an SSL certificate about to lapse, a robots.txt edit nobody approved, or a tracking tag that silently disappeared. One is an audit tool, the other is a tripwire. Agencies running a real client portfolio typically end up needing both, since a clean Sitebulb crawl today says nothing about whether the domain is still registered next March.
The tools at a glance
Little Warden
Website change monitoring tool that alerts you before domain expiry, SSL issues, or critical SEO changes cost your clients rankings
Little Warden is built around a single job: catching the changes that break client sites before the client notices. It runs more than 30 pre-built checks on a recurring schedule across every URL you add, covering domain expiry, SSL certificate status, robots.txt edits, redirect chains, Core Web Vitals, canonical tags, and tracking tag presence. When something changes, it fires an alert through Slack, email, webhook, or API rather than waiting for someone to log in and look.
What Little Warden does not do is equally deliberate. It does not crawl a site for on-page SEO issues, does not generate a prioritized fix list, and has no rank tracking. It assumes you already have tools for auditing and ranking, and it exists to fill the gap those tools leave open between audits: the weeks or months where a domain can lapse or a robots.txt file can get edited by someone who does not realize what they broke.
Pricing runs from £24.99/month for a Freelancer tier covering 20 URLs up to £149.99/month for a Large Agency tier covering 5,000 URLs, with a 40-day free trial and no credit card required to start. API access unlocks at the Small Team tier, which also removes the single-user cap. The one notable gap for agencies is white-label reporting, which does not exist at any tier, so Little Warden works better as an internal alerting layer than as a client-facing deliverable on its own.
| Feature | Freelancer £24.99/month | Small Team £34.99/month | Agency £59.99/month | Large Agency £149.99/month |
|---|---|---|---|---|
| URLs patrolled | 20 | 100 | 650 | 5,000 |
| Data retention | 2 weeks | 1 month | 3 months | 6 months |
| Checks per URL | Up to 10 | Up to 15 | Up to 20 | Up to 30 |
| API access | No | Yes | Yes | Yes |
Sitebulb
Website crawler for technical SEO audits with prioritized hints and visual reporting
Sitebulb is a crawler built to tell you what to do with the data it collects, not just hand you a spreadsheet of URLs. Every crawl surfaces issues across 300+ Hints, each ranked by priority and paired with educational context explaining why the issue matters, which shortens the gap between "here is a crawl" and "here is what to fix first."
The product ships in two forms. Sitebulb Desktop runs locally and handles up to 500,000 URLs per audit on the Pro tier, aimed at agencies and freelancers who want full control without a cloud dependency. Sitebulb Cloud adds scheduled recurring crawls, team collaboration, and capacity up to 10 million URLs, syncing natively with the desktop client so teams are not forced to choose one workflow permanently.
JavaScript rendering is included at every tier, including the $18/month Lite plan, which is a meaningful differentiator since several competing crawlers charge extra or require an enterprise tier for rendered crawls. Integrations cover Google Analytics, Search Console, Sheets, and Looker Studio, and the team has an MCP server in development, currently on a waitlist, that will let practitioners query crawl data through AI tools rather than tracking how a brand is discussed in AI-generated answers.
| Feature | Lite $18/month | Pro $42/month | Cloud From $125/month |
|---|---|---|---|
| URLs per audit | 10,000 | 500,000 | Up to 10 million |
| SEO Hints | 100+ | 300+ | 300+ |
| JavaScript crawling | Yes | Yes | Yes |
| Scheduled audits | No | Yes | Yes |
Head-to-head feature comparison
| Feature | Little Warden | Sitebulb |
|---|---|---|
| Core function | Website change monitoring and alerting | Technical SEO site crawler and audit tool |
| Full site crawling | No, does not crawl for on-page SEO issues | Yes, up to 10 million URLs per audit on Cloud |
| Automated change and incident monitoring | Yes, 30+ pre-built checks with Slack, email, API, and webhook alerts | No dedicated alerting layer between crawls |
| Core Web Vitals coverage | Yes, one of the 30+ monitored checks | Not a listed feature in the Hints library |
| JavaScript rendering | Not applicable, not a crawler | Yes, included on every plan at no extra cost |
| Branded / white-label reporting | No white-label reporting on any tier | Branded PDF reports on Pro and Cloud |
| API access | Yes, on Small Team plan and above | No public API; MCP server for AI querying is in development |
| Team access | Yes, role-based access from Small Team plan up | Per-seat add-on on Pro, included on Cloud (2+ users) |
| Scheduled recurring runs | Yes, checks run automatically on a recurring schedule | Yes, scheduled audits on Pro and Cloud |
| Data export | Google Sheets export | PDF reports, GA/GSC/Sheets, Looker Studio on Cloud |
| Free trial | 40-day free trial | 14-day free trial |
| Starting price | £24.99/month | $18/month (Lite) |
Which should you choose?
SitebulbLittle WardenSitebulbLittle WardenSitebulbLittle WardenThese two are not really rivals for the same budget line. Sitebulb answers "what is wrong with this site right now," and it does that job thoroughly enough to be worth its price on its own. Little Warden answers a different question entirely: "did anything change since the last time I looked," and it answers that question for things a crawl schedule will never catch on its own, like a domain quietly lapsing between quarterly audits. An agency running Sitebulb crawls once a quarter and nothing else is still exposed to the exact incidents Little Warden exists to prevent.
Bottom line
Buy Sitebulb if the job in front of you is auditing a site and producing a prioritized fix list; the 14-day trial on Pro is enough to judge whether the Hints system fits how your team works. Add Little Warden alongside it, not instead of it, if you manage more than a handful of client sites and want to know about a lapsed domain or a broken robots.txt the day it happens rather than at the next scheduled crawl. Running both together costs less than $60 a month combined at the entry tiers, which is cheap insurance against the kind of incident that costs an agency a client.
Frequently asked questions
Should I use Little Warden or Sitebulb for a technical SEO audit?
Sitebulb is the right tool for a technical SEO audit, since it crawls the site and ranks over 300 issues by priority. Little Warden does not crawl at all and cannot produce an audit; it only monitors a fixed list of URLs for changes over time.
Can Little Warden replace a crawler like Sitebulb?
Little Warden cannot replace a crawler because it has no crawling function at all; it monitors changes to URLs you have already added rather than analyzing on-page SEO issues across a site. Teams that need both a crawl-based audit and ongoing change monitoring typically run Sitebulb for the audit and Little Warden for the alerting.
Does Sitebulb alert me if a client domain or SSL certificate is about to expire?
Sitebulb has no monitoring or alerting layer for domain or SSL expiry; it only reports on what it finds during a crawl, whether scheduled or manual. Domain and SSL expiry tracking with advance alerts is what Little Warden is specifically built for.
Which is cheaper for a solo SEO consultant, Little Warden or Sitebulb?
Sitebulb Lite at $18/month is cheaper than Little Warden's Freelancer plan at £24.99/month, but they cover different jobs: Sitebulb Lite is a crawler capped at 10,000 URLs per audit, while Little Warden Freelancer monitors up to 20 URLs for ongoing changes rather than running audits. A solo consultant who needs both functions should expect to budget for both tools.
Does Sitebulb have anything like Little Warden's Slack alerts for site changes?
Sitebulb has no equivalent to Little Warden's Slack, email, or webhook alerting for site changes between crawls. Sitebulb's output is tied to when a crawl runs, whether that is a manual run on Lite or a scheduled recurring crawl on Pro and Cloud, rather than a real-time change notification system.
Is Sitebulb's upcoming MCP server the same as tracking AI search visibility?
Sitebulb's MCP server, currently in a waitlist phase, is built for querying existing crawl data through AI tools, not for tracking how a brand is mentioned or cited in AI-generated search answers like ChatGPT or Google AI Overviews. Neither Sitebulb nor Little Warden currently offers AI search visibility tracking as a feature.