Links are the connective tissue of the internet and the currency of SEO. Every link on every page of your website is either strengthening your search engine authority, passing users toward valuable content, or potentially creating problems — broken destinations, leaking link equity to irrelevant external sites, or missing the optimization opportunities that well-crafted anchor text provides.
SEOToolsN's free link analyzer scans any webpage and produces a comprehensive inventory of every link found — internal links, external links, dofollow status, nofollow attributes, anchor text, and destination URLs. This complete picture of a page's link profile is the foundation of effective on-page SEO auditing, competitive research, and link equity management.
A link analyzer is a tool that crawls a specified webpage, identifies every hyperlink in the page's HTML, and returns detailed information about each link's properties. Unlike a backlink checker that looks at external links coming into your site, a link analyzer examines the links going out from your page — both to other pages within your own website (internal links) and to external websites (external links).
This outgoing link data is critical for SEO because it determines how link equity flows through your website. Every page that receives backlinks from other websites accumulates link equity. That equity is then distributed to other pages through your internal links. Managing where this equity flows — ensuring it strengthens your most important pages rather than dissipating to low-value or external destinations — is one of the core responsibilities of technical SEO.
|
Tool |
Internal/External |
Anchor Text |
Dofollow/Nofollow |
Status Codes |
Login Needed |
|
SEOToolsN |
Yes |
Yes |
Yes |
Basic |
No |
|
SEOReviewTools |
Yes |
Yes |
Yes |
Yes |
Optional |
|
SmallSEOTools |
Yes |
Yes |
Yes |
Basic |
No |
|
Screaming Frog |
Yes |
Yes |
Yes |
Full |
No (500 limit) |
|
Ahrefs Site Audit |
Yes |
Yes |
Yes |
Full |
Yes (paid) |
|
Semrush On-Page |
Yes |
Yes |
Yes |
Full |
Yes (paid) |
Every link on a webpage goes to one of two destinations: another page within the same website (internal) or a page on a different website (external). The ratio and distribution of internal versus external links has significant implications for how link equity flows and how search engines understand your site's structure.
Internal links are fundamental to website architecture and SEO. They create the pathways through which search engines discover all pages on your site, pass link equity from high-authority pages to important target pages, and establish the topical relationships between different content areas. A page with many internal links pointing to it receives more authority and typically ranks more easily than an equivalent page with few or no internal links.
External links point away from your website. Relevant, authoritative external links add value for readers and demonstrate editorial quality — Google views linking to authoritative sources as a positive quality signal. However, external links also distribute some of your page's link equity to external sites. Managing where and how you link externally is part of responsible link equity management.
By default, all HTML hyperlinks are 'dofollow' — they pass full PageRank (link equity) from the linking page to the destination page. A 'nofollow' link has the rel='nofollow' attribute added, which signals to search engines that the link should not pass PageRank.
Nofollow links are appropriate for user-generated content (comments, forum posts), paid or sponsored links (required by Google's guidelines), and links to pages you do not want to endorse for SEO purposes. The link analyzer identifies which of your outgoing links are dofollow and which are nofollow, helping you ensure your link equity management choices are correctly implemented in the HTML.
Anchor text is the visible, clickable text of a hyperlink. Search engines use anchor text as a strong signal of what the destination page is about. Internal links with descriptive, keyword-relevant anchor text help search engines understand the topical focus of the destination page. Generic anchor text like 'click here,' 'read more,' or 'here' wastes the SEO value of the link.
The link analyzer displays the anchor text of every link on the page, making it easy to identify links with weak or missing anchor text and replace them with descriptive, keyword-relevant alternatives. This optimization is quick to implement and can meaningfully improve the rankings of your linked pages.
Seeing the complete destination URL for every link on a page helps identify several important issues: links pointing to redirected URLs (which waste a redirect hop and lose some link equity), links pointing to pages that no longer exist (404 errors), links pointing to non-canonical versions of URLs, and links pointing to external pages that may have changed their content since you linked to them.
After running a link analysis on your important pages, review the internal links they contain. Are your most important pages (the ones you most want to rank) well-linked from other relevant pages on your site? Are the internal links using descriptive, keyword-relevant anchor text? Are there important pages with very few internal links pointing to them that could benefit from additional internal linking? The link analyzer data guides specific, actionable internal linking improvements.
Review the external links leaving your page and evaluate each destination for relevance and authority. External links to low-quality, spammy, or irrelevant websites can negatively impact your page's perceived quality. Consider whether each external link genuinely serves your readers or whether it should be removed or given a nofollow attribute. External links to highly authoritative, relevant sources (research institutions, government websites, reputable publications) can enhance your page's credibility.
Running the link analyzer on competitor pages reveals their internal linking strategy, their external reference sources, and the anchor text they use for key internal links. This competitive intelligence helps you understand how well-ranked competitor pages structure their link architecture — which you can then apply to your own pages when targeting the same keywords.
Before publishing a new piece of content, running it through the link analyzer (once live on your site) helps verify that all intended internal links are correctly implemented, that all external links point to the intended destinations and are accessible, and that anchor text is appropriately descriptive throughout the content.
Link equity (also called PageRank or link juice) is the ranking authority that flows through links. When a high-authority external website links to one of your pages, that page gains link equity. This equity can then be passed to other pages on your site through your internal links.
Think of link equity like water flowing through a network of pipes. The pipes are your internal links. Water enters your system through your backlinks and flows through the internal link network, distributing authority throughout your website. Pages that receive many internal links from high-equity pages collect more authority and rank more easily. Pages that are isolated from your internal link network — even if they have good content — struggle to rank because no authority reaches them.
The link analyzer shows you the exact link topology of each page — which pages receive equity from it and how many links are distributing that equity. This data enables strategic decisions about where to add new internal links to strengthen underperforming pages.
Google's John Mueller has confirmed that there is no strict limit on the number of links per page. However, pages with hundreds or thousands of links may have their link equity diluted to the point where individual links carry minimal value. A practical guideline is to keep the total number of links on a page under 150, ensuring each link provides genuine value to readers.
Yes, in almost all cases. Internal links should generally remain dofollow to allow link equity to flow throughout your site. Adding nofollow to internal links was sometimes recommended in the past for 'PageRank sculpting,' but Google has clarified that this approach does not work as intended and is not recommended. Reserve nofollow for external links to user-generated content, paid links, and destinations you do not want to endorse.
Use descriptive, keyword-relevant anchor text for all internal links where possible. The anchor text should naturally describe the destination page's topic. Vary the anchor text slightly across multiple links pointing to the same page rather than using the exact same phrase every time. Avoid generic anchors like 'click here,' 'this page,' or 'here' for important internal links.
Conduct a full internal link audit quarterly as part of your regular SEO maintenance. Additionally, audit links whenever you publish significant new content (to ensure the new content is well-linked into your site's existing structure) and after any website migration or URL restructuring (to identify and fix any broken internal links created by the change).
Your website's internal link structure is one of the most powerful and most underutilized levers in on-page SEO. It controls how search engine authority flows through your site, how quickly crawlers discover all your pages, and how effectively your content's topical relationships are communicated to Google's algorithms. Getting it right can meaningfully improve rankings across your entire website — not just on individual pages.
SEOToolsN's free link analyzer gives you complete visibility into the link profile of any webpage in seconds. Use it to audit your own pages, study your competitors' link structures, and implement the internal linking optimizations that strengthen your most important pages and drive sustainable improvements in your organic search performance.
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