Free Topical Authority Checker vs Surfer
Surfer's Content Editor scores a page's content against what's already ranking — term usage, structure, length — and some plans surface basic internal-link suggestions for the page you're working on. It doesn't crawl your site or compute a site-wide authority score. RankForge does the opposite job: it crawls the whole site, models how authority flows between every page, and outputs a prioritized list of specific internal links to add, independent of any single page's content score.
If the job in front of you is topical authority checker, you can run that check here for free in a couple of minutes with no account. Whether you also need Surfer depends on what else you do in a week — which is what the rest of this page is about.
What the free topical authority checker checks
- How strongly each pillar page is reinforced by its supporting content
- Clusters that are thin, fragmented, or isolated from the rest of the site
- Pillars whose subpages outrank them — a sign of weak structure
Where Surfer is genuinely better
These are real advantages. If any of them describe your week, Surfer is worth paying for and this free check is not a replacement.
- NLP-driven content scoring against top-ranking pages for a target keyword
- AI content generation and an editor that guides on-page optimization while writing
- SERP and keyword research built into the same workflow
Which one do you actually need?
Use the free topical authority checker
You want to know which pages are starved of internal authority and the specific links to add, site-wide.
Use Surfer
You're optimizing a specific page's on-page content to match what's already ranking.
Surfer capabilities change — verify current features on their site.