ContentKing (Semrush) / contentkingapp.com
AI-powered real-time SEO monitoring that continuously crawls websites to detect changes and issues the moment they occur, with AI issue prioritisation and Semrush platform integration.
Pricing
Free
Free plan
No
Category
Developer Tools
Platforms
1
Free plan
No
API access
No
Open source
No
Platforms
1
ContentKing (acquired by Semrush in 2022) provides real-time continuous SEO monitoring — crawling websites continuously to detect SEO-critical changes the moment they occur rather than during weekly or monthly scheduled audits. Real-time monitoring catches title tag changes, broken canonicals, new 404 errors, and redirect changes immediately, before they create ranking impact. AI issue prioritisation scores detected problems by likely ranking impact, helping teams address critical issues first. Change history provides an audit log of every website modification with before/after comparison — essential for debugging unexpected ranking changes. Integration with Semrush's broader SEO platform connects monitoring with keyword tracking, competitive analysis, and backlink data.
ContentKing AI runs as ml platform software built around data and text workflows. Users typically start with a prompt, upload, or connected data source, and the underlying model handles the heavy lifting before returning a result you can refine or export. It's available on web.
The capabilities that matter most for teams evaluating ContentKing AI.
Continuous crawling detecting SEO element changes the moment they occur — providing immediate alerts before issues create ranking impact versus weekly scheduled audits.
Scores detected SEO issues by likely ranking impact — focusing team attention on critical problems first rather than treating all detected issues equally.
Records every detected website change with before/after comparison — enabling correlation of specific modifications with ranking and traffic changes for debugging.
Professional plans priced by pages monitored. No public pricing. Acquired by Semrush 2022. Free trial. Contact for pricing.
Model
Subscription
Starting price
Free
Free trial
Yes
Screaming Frog provides scheduled SEO crawling without real-time monitoring. Botify provides enterprise technical SEO. Lumar (DeepCrawl) provides website intelligence. Semrush (covered) provides the broader SEO platform ContentKing is integrated with.
A side-by-side look at the closest alternative in this category.
Key facts about model providers, platforms, and team support.
Model Provider
ContentKing, Semrush
Platforms
Web
Deployment
SaaS
Integrations
Google Search Console, Google Analytics, Looker Studio, Semrush, API
Team Collaboration
No
Launch Year
2022
Compliance signals and data-handling notes as reported by the vendor.
SOC 2 Type II. GDPR compliant. Enterprise data handling agreements.
Website structure and content data crawled and processed for monitoring. Review ContentKing's data handling policy.
Verified reviews from signed-in users, stored in the backend and averaged into this tool's rating.
Editorial Verdict
ContentKing is the best real-time SEO monitoring platform for enterprise websites and agencies wanting continuous change detection and immediate issue alerting rather than periodic scheduled audits.
Last verified July 24, 2026.
Professional plans priced by pages monitored. No public pricing. Acquired by Semrush 2022. Free trial. Contact for pricing.
Enterprise licensing. No public pricing. Annual contracts. Publicly traded (CDAY). Demo available.
SOC 2 Type II. GDPR compliant. Enterprise data handling agreements.
SOC 2 Type II. ISO 27001. GDPR compliant. HIPAA eligible. FedRAMP eligible. Enterprise data handling agreements.
Website structure and content data crawled and processed for monitoring. Review ContentKing's data handling policy.
Employee HR, payroll, and scheduling data processed under Ceridian's enterprise data handling agreements and applicable employment data regulations globally.
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