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2026-11-08 23:57 Tool comparisons

Surfer SEO vs ContentKing (2027): Optimise Content Before You Publish or Monitor Your Site After, Prices, Free Trials, AI Search and What Happened to ContentKing

Surfer SEO vs ContentKing: Optimise Each Article Before You Publish, or Monitor the Whole Site After?

Surfer SEO and ContentKing turn up in the same SEO tool lists, yet they work at opposite ends of a page's life. Surfer helps while you write: it scores a draft against the pages that already rank, suggests the terms and structure to add and now also tracks whether ChatGPT, Gemini, Perplexity and Google's AI features mention your brand. ContentKing works after you hit publish: it crawled your whole website around the clock and alerted you when a page broke, a title vanished or a redirect went wrong. Both brands have changed hands. Surfer now runs on surfer.ai as part of the Positive group, and ContentKing is sold as Conductor Monitoring inside Conductor's enterprise platform. Whether you search for Surfer SEO vs ContentKing or ContentKing vs Surfer SEO, this guide shows what each does today, what it costs and when a startup needs which. We checked both official sites in November 2026.
Quick answer: pick Surfer if your problem is getting new and old articles to rank and be cited: plans start at 49 EUR a month billed yearly, and new accounts get a 7-day trial of the Pro plan. Pick ContentKing (Conductor Monitoring) only when your site is big enough that releases, CMS edits or developers can break SEO overnight: it has a 21-day free trial without a card, but prices come by quote. Most early-stage startups need the writing tool long before the monitoring tool, and can watch their site with the free Google Search Console in the meantime.
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Surfer SEO vs ContentKing at a Glance

Surfer (Surfer SEO)ContentKing (now Conductor Monitoring)
Stage of the workBefore and just after publishing: research, write, score and refresh single pagesAfter publishing: continuous crawling of the whole site, alerts and a change history
Who runs itSurfer Sp. z o.o. (Wroclaw, Poland), acquired by Positive in October 2025Conductor, which agreed to buy ContentKing in February 2022
Price (default view)Discovery 49 EUR, Standard 99 EUR, Pro 182 EUR, Peace of Mind 299 EUR a month billed yearly; AI Search Analytics 82 EUR; Enterprise customNo public prices; usage-based plans by free trial, demo or sales
Free trial7 days of Pro for new accounts; card at checkout, converts unless cancelled21 days (3 weeks), no credit card
Plan limitsDiscovery: 120 documents, 10 tracked pages, 1 seat; Standard: 360 documents, 50 pages, 3 seatsConductor Essentials: 100,000 pages monitored, 3 websites; Growth: 500,000 pages monitored 24/7, 5 websites
AI searchTracks prompts in ChatGPT, Perplexity, Gemini, AI Overviews and AI Mode on most plansFlags AEO (answer engine) technical issues next to SEO issues
Free extraKeyword Surfer Chrome extension, freeNone listed separately
Works withWordPress, Google Docs, Contentful, ZapierPart of the Conductor platform with Creator, Intelligence and AgentStack
Best forFounders, writers and small content teams publishing articles every weekSEO and web teams at larger companies with big, fast-changing sites
Sources: surfer.ai home, pricing, Content Editor and trial help pages; conductor.com Monitoring, pricing, free trial and Monitoring FAQ pages, checked 8 November 2026. Surfer prices in EUR as the default view shows them here; monthly-billing prices sit behind a toggle and are left out.

Surfer and ContentKing Explained

Surfer: optimise the article before it goes live

Surfer (the old surferseo.com address now redirects to surfer.ai) calls itself an AI visibility platform. Its core is still the Content Editor: as you write, a real-time Content Score shows whether the draft covers what the top pages and AI answers cover, with live guidance on structure, word count, keywords and images. Surfy, the built-in writing assistant, edits and rephrases in your own Custom Voice, and you can share an editor with a freelance writer. Around it sit Keyword Research, a Topical Map for planning clusters, an SERP Analyzer, an AI detector and humanizer, and a plagiarism checker.
After you publish, Surfer helps a little too. According to its pricing FAQ, Content Audit monitors how your content performs, notifies you about ranking drops and suggests which articles to refresh first. Standard and higher plans list rank drop detection, and the number of tracked pages grows with the plan (10 on Discovery, 50 on Standard, 200 on Pro and 500 on Peace of Mind). This is content-performance tracking, not a crawler that checks every URL on your site.
AI search: the AI Tracker follows the prompts your buyers ask in ChatGPT, Gemini, Perplexity, AI Overviews and AI Mode, shows where you are mentioned or cited and where competitors are recommended instead. Positive announced that it had acquired Surfer on 28 October 2025; the site footer still names Surfer Sp. z o.o. in Wroclaw, Poland, as the company behind it.
  • Discovery, 49 EUR a month: 120 documents, 10 tracked pages, AI SEO guidelines, Surfy and the humanizer, 1 seat.
  • AI Search Analytics, 82 EUR a month: 50 AI prompts refreshed daily across the main AI models, mention gap and brand sentiment, 5 brand spaces; no writing documents.
  • Standard, 99 EUR a month: 360 documents, 25 prompts in ChatGPT refreshed weekly, integrations, 1-click content optimisation, plagiarism checker, rank drop detection, 3 seats.
  • Pro, 182 EUR a month: adds 50 prompts daily across all models, 1-click internal linking, content ideas and coverage gap, custom templates and voices, a cannibalisation report and MCP, 5 seats.
  • Peace of Mind, 299 EUR a month: 100 prompts daily, unlimited documents and brand spaces (fair use), API access and a dedicated success manager, 10 seats. Enterprise is priced on request.
How you pay: the Surfer pricing page shows these prices per month billed yearly, charged upfront, and says the annual plan is up to 17% cheaper than paying monthly. Cards work for both, bank transfer only for yearly plans, and PayPal is not accepted. The Surfer trial help page explains the 7-day trial: you get Pro, you choose a plan and enter billing details at checkout, and the card is charged when the trial ends unless you cancel first. Set a reminder.
Free option: the Keyword Surfer Chrome extension is free and shows search volume, cost per click and keyword ideas right in Google's results, with data from 70 countries. It is a handy first step before you pay for the editor.
Is your startup on ChatGPT?

More and more traffic is coming from Perplexity, ChatGPT, Grok and other AI tools.

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ContentKing, now Conductor Monitoring: watch the whole site after it goes live

ContentKing started as a real-time SEO auditing and change-tracking app. Conductor announced a definitive agreement to acquire ContentKing on 16 February 2022 and said the technology would be packaged inside its enterprise platform. Today contentkingapp.com redirects to Conductor, and Conductor's Monitoring FAQ says ContentKing is the former name of Conductor Website Monitoring, which became Conductor Monitoring in 2025.
The job is the same as before. Conductor Monitoring crawls your site continuously and raises an alert the moment something changes, instead of waiting for a weekly audit. It covers SEO and AEO technical issues in one workflow, sends each alert to the right person at the right sensitivity level, ranks problems by business impact and keeps 60 months of page snapshots, so you can see exactly what changed on the day traffic fell.
Price and plans: the Conductor pricing page publishes no prices and describes a usage-based model. Website monitoring is part of each plan: Essentials ("Try for Free") monitors 100,000 pages across 3 websites, Growth ("Request a Demo") 500,000 pages 24/7 across 5 websites, and Enterprise ("Contact Sales") websites of any size, 10 or more. The same plans bundle Conductor's Writing Assistant drafts, keyword and competitor tracking and AEO reporting, so you are buying into a whole platform rather than a single crawler.
Trial: Conductor offers to try Conductor Monitoring free for 3 weeks with no credit card; the FAQ confirms that trials run 21 days.
Best for: ecommerce shops, marketplaces, publishers and SaaS companies with thousands of URLs and several teams editing the site, where one broken template can wipe out traffic before anyone notices.
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We publish content about startups, education, tech, funding, etc. that ranks well not only in Google but also in Perplexity, ChatGPT, Grok and other AI tools.

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Head-to-Head: Before Publishing vs After Publishing

What each tool looks at

Surfer looks at one page at a time and asks: does this article answer the query as well as the pages that rank, and is it likely to be cited by AI? ContentKing looks at every page at once and asks: did anything change that could stop Google or AI crawlers from reading it? If your articles do not rank, Surfer is the fix. If traffic suddenly drops and nobody knows why, monitoring is.

Price and buying

Surfer is self-serve with public plans from 49 EUR a month (billed yearly), and you can sign up today. Conductor has the longer, card-free trial, but no public price and a sales conversation before you get a quote. The old version of this post said Surfer starts at $49 a month and ContentKing has plans for businesses of every size; today Surfer quotes EUR with yearly billing in the default view, and ContentKing is no longer sold on its own website.

AI search

Both now talk about AI search. Surfer measures your brand's mentions and citations across AI models and helps you write content that gets picked up. Conductor Monitoring watches the technical side, such as pages that suddenly block crawlers, so content stays reachable for search engines and answer engines.

Team and workflow

Surfer's seats run from 1 on Discovery to 10 on Peace of Mind, with comments, folders and links for external writers. Conductor routes each alert to the right person and channel, which suits companies where SEO, content and developer teams all edit the site.

Surfer SEO or ContentKing: Which Should You Choose?

  1. Write the page. Draft in Surfer's Content Editor until the Content Score covers what the ranking pages cover, without stuffing keywords.
  2. Publish and check the basics. Make sure the page is indexable, has its title and description, and links to and from related pages.
  3. Watch it free. Google Search Console shows clicks, queries and indexing errors at no cost; use it every week.
  4. Refresh what drops. Surfer's Content Audit flags ranking drops and quick-win pages; update those before writing new ones.
  5. Monitor at scale. When the site reaches thousands of URLs or several teams edit it, trial Conductor Monitoring for 21 days and see what it catches.

What Changed Since the Old Version of This Comparison

  • Surfer moved to surfer.ai and joined Positive. Positive announced the acquisition on 28 October 2025. Plans are now Discovery, AI Search Analytics, Standard, Pro, Peace of Mind and Enterprise, priced in EUR in the default view here.
  • Grow Flow is no longer on Surfer's plan pages. Content Audit, Topical Map and rank drop alerts now cover planning and refresh work.
  • ContentKing is now Conductor Monitoring. Conductor agreed to buy it in February 2022; it became Conductor Website Monitoring and, in 2025, Conductor Monitoring. There is no separate ContentKing price list any more.
  • Removed: two statistics with no source (90% of startups using an SEO tool, 65% more leads), general marketing filler and links to third-party blogs. Every fact above comes from Surfer's, Positive's and Conductor's own pages.

How Founders Use Content and SEO Tools Without Overspending

Early on, a startup needs a handful of strong pages more than it needs enterprise monitoring: a clear homepage, a few landing pages and articles that answer the questions buyers ask. Our guide to SEO and keyword research tools for startups helps you choose topics, Ubersuggest vs AnswerThePublic covers cheap question research, and if you like Surfer's free extension, Wincher vs Keyword Surfer and SE Ranking vs Keyword Surfer show how far it goes. For AI copywriting rather than SEO scoring, see Jasper vs Copy.ai and Copysmith vs Copy.ai.
Prefer to skip a monthly tool bill? The F/MS AI SEO Tool writes articles from your keywords that are built to rank on Google and to be cited by ChatGPT and Perplexity, and the AI SEO blog explains the method. Links still count: the F/MS Marketing Directories list places to submit your startup, and our free Ahrefs alternatives help you check who links to you.
When your articles start bringing in readers, turn them into subscribers: Constant Contact vs ActiveCampaign helps you pick an email tool.
Boost Your SEO by Publishing Your Startup Press Release with us.

We publish content about startups, education, tech, funding, etc. that ranks well not only in Google but also in Perplexity, ChatGPT, Grok and other AI tools.

👉 Publish Press Release

FAQ: Surfer SEO vs ContentKing

What is the difference between Surfer SEO and ContentKing?

Surfer helps you research, write and score individual articles so they rank on Google and get cited by AI models. ContentKing, now Conductor Monitoring, crawls your whole site around the clock and alerts you when SEO or AEO technical issues appear, with a 60-month history of page changes.

Is ContentKing still available?

Not under that name. Conductor agreed to acquire ContentKing in February 2022. According to Conductor, it became Conductor Website Monitoring and, in 2025, Conductor Monitoring; contentkingapp.com now redirects to Conductor.

Is Surfer SEO still called Surfer SEO?

The product is now called Surfer and lives on surfer.ai; surferseo.com redirects there. Positive announced it had acquired Surfer on 28 October 2025.

How much does Surfer cost?

In the default view of its pricing page, Surfer costs 49 EUR a month for Discovery, 99 EUR for Standard, 182 EUR for Pro and 299 EUR for Peace of Mind, all billed yearly and charged upfront. AI Search Analytics alone is 82 EUR a month, and Enterprise is priced on request.

How much does ContentKing (Conductor Monitoring) cost?

Conductor publishes no prices. Its pricing page describes a usage-based model, with Essentials as a free trial, Growth by demo and Enterprise through sales. Conductor Monitoring has a free 21-day trial without a credit card.

Does Surfer have a free trial or free plan?

New accounts get a 7-day trial of the Pro plan. You enter billing details at checkout, and the plan you chose starts and is charged after 7 days unless you cancel. The Keyword Surfer Chrome extension is free.

Can Surfer replace ContentKing for site monitoring?

Only partly. Surfer's Content Audit tracks content performance, warns about ranking drops and suggests refreshes for a set number of pages, but it does not crawl every URL in real time or keep a full change history like Conductor Monitoring.

Which one should an early-stage startup buy?

Usually Surfer, or a cheaper writing tool, because content that ranks matters more than monitoring when a site has few pages. Use the free Google Search Console to catch indexing problems until the site grows.

Where can I submit a guest post about my startup?

You can publish a guest post in one of the Fe/male Switch startup blogs, which rank in Google and in AI tools like ChatGPT and Perplexity. Get a quality backlink.

Can I use AI to write SEO-optimized articles that help my brand grow?

Yes. The F/MS AI SEO Tool writes articles from your keywords that are built to rank on Google and in AI assistants, with human editors reviewing them.

About the Author

Violetta Bonenkamp, also known as MeanCEO, is an experienced startup founder with an impressive educational background including an MBA and four other higher education degrees. She has over 20 years of work experience across multiple countries, including 5 years as a solopreneur and serial entrepreneur. Throughout her startup experience she has applied for multiple startup grants at the EU level, in the Netherlands and Malta, and her startups received quite a few of those. She’s been living, studying and working in many countries around the globe and her extensive multicultural experience has influenced her immensely.