What happened to ContentKing, and what should I use instead?

Conductor acquired ContentKing and folded it into its platform as Conductor Website Monitoring. The capability survived - real-time monitoring, change tracking, alerting, at large page counts. What changed is how it is sold: Conductor’s pricing page lists tiers by pages monitored and tracked websites, and every one of them routes to "Request a Demo" or "Contact Sales" rather than a number.

For an enterprise SEO team that is normal procurement. For a freelancer with four client sites, a sales call is the answer, and it is no.

The story that circulates is that ContentKing’s move left a hole between "enterprise" and "nothing at all". That is not accurate and this page is not going to repeat it, including in our own favour.

The middle of this market is occupied. Little Warden has been serving agencies in it for years at published prices. There are others. What is true - and it is a different claim - is that the middle has very little mindshare: people hunting for a ContentKing replacement routinely list everything they tried without naming any of the products that already do this. That is a marketing problem in the category, not an empty space in it.

Anyone selling you a tool on the premise that nothing else exists is telling you something checkable and wrong.

• If you have enterprise budget and hundreds of thousands of pages, the successor product is the successor product. Take the demo.
• If you are an agency with a roster and you want per-URL pricing and a long trial, look at Little Warden first. It is the closest independent equivalent and it is a mature product.
• If what you specifically want is indexability monitoring with full history on every plan and per-site rather than per-URL pricing, that is what CrawlWarden is. There is a free plan; you do not have to take anyone's word for it.
• If your site depends on JavaScript rendering, SEO Radar does fetched-versus-rendered and staging-versus-production comparison, which is the closest match to what ContentKing was good at. It publishes its prices, starting at $199/month.
• If you want the monitoring bundled with a crawler and a rank tracker, Sitechecker sells that from $99/month.
• If you want a scheduled audit rather than continuous monitoring, a crawler is cheaper and better at that job.

• You have the budget and the scale ContentKing was being repositioned for - Conductor Website Monitoring is the direct continuation of the product and covers far more pages than CrawlWarden is built for.
• You need the rest of the Conductor platform: content workflow, enterprise reporting, and the integrations that come with it.
• You want real-time monitoring across hundreds of thousands of pages. CrawlWarden watches a curated list and is the wrong shape for that entirely.
• You want the closest like-for-like independent replacement at published prices with a 40-day trial - that is Little Warden, not us.
• You want the capability ContentKing was actually known for - rendering comparison and pre-deploy staging diffs. SEO Radar has it and CrawlWarden does not.

• A sales call to find out a price is a dealbreaker.
• You want the indexability half of what ContentKing did, on a list of pages that matter, without the platform around it.
• Full change history matters more to you than page volume.
• You want to evaluate it without talking to anyone - the free plan does real monitoring indefinitely.

• Conductor pricing
• UptimeRobot - SEO change monitoring tools

• the closest independent equivalent, compared honestly
• the free backstop everyone should have
• SEO Radar, the closest thing to a direct successor
• what CrawlWarden deliberately does not do
• every alternative, compared