The free tier of Screaming Frog crawls 500 URLs. That covers a small blog. It does not cover an e-commerce catalogue, a SaaS knowledge base, or a content site that has been publishing for three years. If you have hit that limit and are wondering whether to pay for more, or if you are starting fresh and want to know whether free tools will actually cut it, this guide gives you a straight comparison.
The answer is not simply "paid is better." The right choice depends on your site size, your publishing cadence, and precisely what you need the tool to do. Free tools can handle a surprising amount. Paid tools are often worth the investment for specific use cases, not all use cases.
Definition
Internal link tools are software applications that analyse the hyperlinks connecting pages within a website. They fall into two broad categories: audit tools (which identify structural problems like broken links, orphan pages, and crawl depth issues) and building tools (which suggest or automate the addition of new internal links to improve link equity distribution).
Before comparing tools, it helps to anchor the conversation in data. The decisions you make about internal links have measurable consequences for organic traffic.
44
average internal links on top-ranking pages, according to Ahrefs research
Source: Ahrefs via SEOShouts
Pages in positions 1-3 on Google typically have more internal links pointing to them than lower-ranked equivalents. This is not a coincidence. Internal links pass equity, signal topical relevance through anchor text, and reduce the crawl depth of key pages, all of which contribute to rankings.
The stakes are higher than they look. A site where 96% of orphan pages receive no organic traffic at all[1] has a structural problem that neither better content nor more backlinks will fix. The only solution is better internal linking, and you need a tool to find the problem first.
25%
of internal links use generic anchor text like "click here" (based on Semrush analysis of 10M pages)
Source: Semrush via SEOShouts
GSC's Links report is free and shows the pages on your site that receive the most internal links, plus which specific URLs link to any given page. It is genuinely useful for a high-level picture. The significant limitations: data is sampled (not comprehensive), the table caps at 1,000 rows, and there is no anchor text breakdown, no orphan page detection, and no crawl depth data. For a site under 1,000 pages with basic needs, GSC alone gets you surprisingly far. For anything more complex, it is a starting point, not an endpoint.
Screaming Frog's free version crawls up to 500 URLs and provides detailed internal link data: source/destination URLs, anchor text, link position, follow/nofollow status, and more. For sites under 500 pages, this is one of the most powerful free tools available anywhere. The limit is the limit, though: once your site grows past 500 pages, you either pay (£199 per year) or look for alternatives.
Rohit Sharma, founder of SEOShouts, summarises the free tool stack neatly: "The free stack of SEOShouts checker plus GSC plus Screaming Frog covers 90% of the value for most small site audits."[1]
A browser-based tool that checks internal link health for a given URL without requiring installation. It surfaces broken internal links, nofollow usage, and basic anchor text data. Best used for quick spot-checks on individual pages rather than site-wide audits.
Moz's free account gives limited access to link data, including internal links. The cap is 10 queries per month, which is enough for monthly check-ins on a handful of priority pages. Not suitable for comprehensive site-wide analysis, but useful for verifying that specific priority pages have adequate inlinks.
Ahrefs' free site checker provides a snapshot crawl with basic internal link data. The free plan is intentionally limited compared to the paid product, but it surfaces the most critical issues for small sites: broken links, redirect chains, and pages with no internal links. It does not provide the full internal links report or orphan page detection available in paid plans.
The paid Ahrefs plan provides cloud-based crawling of up to 5 million pages per month, with a full internal links report showing inlink counts, crawl depth, anchor text, and orphan page detection. The orphan page finder is one of the most reliable in the industry, based on a genuine crawl rather than a sample. For sites above 500 pages that are serious about organic growth, this is the most commonly recommended paid tool.
Semrush's Site Audit covers up to 1 million pages per audit and flags internal linking issues by severity. It does not go as deep on internal link analysis as Ahrefs, but its integration with keyword data is useful: you can cross-reference internal link weakness with keyword rankings to prioritise which pages need more inlinks most urgently.
Link Whisper is a WordPress plugin that suggests and automates internal links during content creation. The free version provides basic suggestions. The paid version (from $77/year) adds inbound link analysis, auto-links, and reporting. Daniel Nnanna at Tech O'Clock notes that "Link Whisper's free version lacks inbound link reports and export functionality, which are often the most useful features for auditing."[2]
For non-WordPress sites, Link Whisper is not an option. For WordPress sites, it is the most convenient solution for ongoing link building, but it does not replace a technical audit tool for structural analysis.
WILO's free tier offers AI-powered internal link suggestions without automatic insertion (which avoids the duplicate or over-optimisation issues that some automated tools create). Ojash Yadav at QuestionDB recommends "balancing WILO's free tier for basics with Link Whisper paid for AI-assisted link building on larger WordPress sites."[3]
| Tool | Price | Crawl Limit | Orphan Detection | Anchor Text | Automation | CMS Support |
|---|---|---|---|---|---|---|
| Linki (beta) | Free beta | Enterprise | Yes | Yes | Yes | All |
| Google Search Console | Free | Sampled | No | No | No | All |
| Screaming Frog (Free) | Free | 500 URLs | Yes | Yes | No | All |
| Screaming Frog (Paid) | £199/yr | Unlimited | Yes | Yes | No | All |
| Ahrefs (Paid) | From $129/mo | 5M pages/mo | Yes | Yes | No | All |
| Link Whisper (Paid) | From $77/yr | N/A (WP only) | Limited | Yes | Yes | WordPress |
| WILO (Free) | Free | N/A (WP only) | No | Basic | Suggestions | WordPress |
"The free stack covers 90% of the value. Where you need to pay is when you need to scale: more pages, scheduled crawls, and automated issue tracking."
Rohit Sharma, Founder, SEOShouts
Free tools are sufficient when your site has fewer than 500 pages, you do not publish more than a few times per month, and you only need to audit periodically rather than monitor continuously. The free Screaming Frog plus GSC combination genuinely covers most needs at this scale.
The case for a paid tool becomes clear when:
Enterprise sites (25,000+ pages) that invest in fixing internal links have seen ranking gains of 25-60%.[4] At that scale, the ROI from a paid tool is easily justified. The difficulty is reaching that scale with only free tools.
Linki is a pre-launch internal link analysis tool designed to sit in the gap between free tools (limited by crawl caps and manual workflows) and paid suites (priced for enterprises). During the current free beta, it offers full site crawling, orphan page detection, crawl depth analysis, anchor text reporting, and redirect chain identification, regardless of site size or CMS.
It does not require a WordPress plugin or a £100+/month subscription. For bloggers, indie SEOs, and growth teams that are outgrowing the Screaming Frog free tier but are not ready for Ahrefs pricing, it is worth adding to your testing stack now.
See how it stacks up in our detailed internal link checker tools comparison, or read our guide on auditing internal links at scale for the workflows that pair best with it.
60%
ranking gain ceiling reported for enterprise sites after systematic internal link improvement
Source: Ideamagix internal linking study
For sites under 500 pages, the free version of Screaming Frog is the most powerful free internal link checker available. It surfaces broken links, orphan pages, anchor text data, and crawl depth in detail. Pair it with Google Search Console's Links report for a complete free audit stack. For sites above 500 pages, Linki's free beta currently offers the most comprehensive free option.
Yes. Screaming Frog's free tier crawls up to 500 URLs and provides a full internal links report including source URL, destination URL, anchor text, link position, and status code. For sites under 500 pages, it is one of the most capable free SEO tools available. The paid version (£199/year) removes the 500 URL crawl limit entirely.
The free version of Link Whisper provides basic outbound internal link suggestions within the WordPress editor. The paid version ($77+/year) adds inbound link analysis (showing how many internal links point to each post), bulk auto-linking, link reporting, and export functionality. The free version is useful for writers wanting quick link suggestions; the paid version is what you need for systematic internal link auditing and management.
For small sites, the answer is close to yes. The free stack of Screaming Frog (under 500 URLs) plus Google Search Console genuinely covers most internal link audit needs for sites under 500 pages. For larger sites, free tools have meaningful limitations (crawl caps, no automation, no ongoing monitoring) that paid tools address. Linki's current free beta offers an exception: enterprise-grade features at no cost during the pre-launch period.
Automated internal links can cause issues if implemented poorly: duplicated links within a single page, over-optimised anchor text repetition, or links to irrelevant content. When implemented well (with relevance checks, deduplication, and anchor text variety), automated internal linking is an efficient way to scale link building without manual effort. Tools like WILO use suggestions rather than auto-insertion to give editors final control, which avoids most automation risks.
Sources