CrawlObserver
6.7#11 in seo crawler softwareFree planFree planWebAPI
VisitCrawlObserver vs SpiderNow
What both publish
| Fact | CrawlObserver | SpiderNow |
|---|---|---|
| API | The product offers a REST API to launch crawls, fetch results, and integrate audits into workflows. | The FAQ says API services are being built and will be available shortly. |
| API access | Yes | Yes |
| Audience | The stated use cases include technical SEO audits, monthly tracking, client reporting, internal-link analysis, and site-owner migration checks. | The product is described as a fit for SEO agencies, web developers, digital marketers, and businesses. |
| Backlink analysis | Yes | No |
| Free plan | Yes | Yes |
| Integrations | The page lists Google Search Console, Claude Code, and SEObserver under “Integrates with.” | The content improvement feature uses Grammarly for spelling and grammar corrections. |
| Keyword research | No | No |
| Product | CrawlObserver is a lightweight SEO crawler with 45+ signals per page, cross-crawl comparison, and API control. | SpiderNow is a website crawler that extracts website data and performs real-time site audits. |
| Rank tracking | No | No |
| Security | The crawler describes built-in SSRF protection using post-DNS IP validation to block private IP ranges. | The FAQ says user accounts and data are protected with SSL encryption and website payments are secured through Stripe. |
| Site audit | Yes | Yes |
CrawlObserver plans
- Free private betaFree
SpiderNow plans
- FreeFree
- Basic$6.99 a month
- Standard$19.99 a month
- Advanced$39.99 a month
Pick CrawlObserver if…
It suits technical SEO audits, monthly tracking, internal-link analysis, migration checks, broken-link work, and client reporting. The service is currently presented as a free private beta.
Pick SpiderNow if…
SpiderNow may suit SEO agencies, web developers, digital marketers, and businesses that need site crawling and technical audits. Its coding utilities may also be useful for people working with HTML, JavaScript, CSS, and images.