What are external links?
This external link checker is useful for technical audits, updating old content, moving a website, and reviewing publications before launch. The online external link checker is especially useful for pages with multiple sources, affiliate URLs, and links to documents, research, or services.
An external link is one that takes the user from the current website to another domain. If a page is located on site-a.com and the link opens to site-b.com, it would be considered external for the first page. Analyzing a page's external links reveals which third-party URLs are used in the content and whether they function correctly.
Such URLs are found in articles, reviews, instructions, catalogs, product cards, and commercial materials. A website may link to an official source, manufacturer documentation, research, social media, payment service, or other useful resource.
What is the difference between an external link and an internal link?
An internal link points to another page on the same website, so it remains within the same domain. It is used for navigation, interlinking between sections, distributing internal link juice, and assisting search engines when crawling pages.
An external link sends the user to a third-party domain. When checking, it's important to distinguish between these types, as they serve different purposes. An external links checker should show which URLs remain within the site and which lead externally, so they can be checked separately.
Subdomains are sometimes classified separately. For example, a link from www.example.com to shop.example.com may be processed differently than a link to a completely different domain. Therefore, it's best to evaluate the analysis results based on the structure of the specific project.
How are outgoing links different from backlinks?
The outbound link is located on the page being checked and leads from it to an external resource. These are the URLs that the outbound link checker looks for. The user enters the page address, the service scans its contents, and collects all external links found.
A backlink works in the opposite direction. It's hosted on someone else's website and points to your domain. To find one, you need a backlink checker with its own link database or search engine data.
These tasks are related to SEO but require different tools. Checking a page's external links answers the question of where users and search engine robots are leaving it, while backlink analysis shows which external sites are linking to it.
When do you need an outbound link checker and when do you need a backlink checker?
An outbound links analyzer is useful when you need to check the content of a specific page, finding outbound URLs, broken transitions, redirects, or incorrect rel attributes. This analysis is especially useful after editing text, importing data, or updating a template.
A backlink checker is used to evaluate a website's link profile. It helps analyze donors, incoming link anchors, link dynamics, and pages that receive external mentions.
If your task is to check outbound links, you need a page analyzer. If you want to find out who links to your site, you should use a backlink checker.
What problems does the external link checker help find?
Automatic checking quickly highlights URLs that require additional attention. Most often, problems are related to deleted pages, redirects, server errors, and changed content on external resources.
After receiving the report, it's best to sort the issues by type. This will make it easier to understand which links can be fixed immediately and which require a manual review of the target page.
External link returns 404
A 404 error means the requested page was not found. This could be due to content being removed, a change in the site structure, or the publication being moved to a new address.
First, try to find a current version of the source on the same domain. If one exists, replace the link. If the source has completely disappeared and there is no suitable alternative, remove the link or rewrite the relevant fragment of text.
The link leads through 301 or 302
A 301 response indicates a permanent redirect, while a 302 is typically used for a temporary one. In both cases, it's worth checking the final URL and ensuring it matches the original link's destination.
If the old address constantly redirects to the current page, the link can be replaced with the final URL. This is especially useful for long redirect chains.
An external site returns a 5xx error.
5xx server errors can be temporary, so don't delete the link immediately after a single check. It's best to retry the request later and open the page manually.
If a resource remains unavailable for a long time, find an alternative source. For important facts, it's advisable to maintain a link to the original document or official website.
The content of the destination page has changed
Sometimes a URL continues to return a 200 response even though the original article has been deleted or replaced with other material. Automatic HTTP analysis doesn't always detect this issue.
Therefore, key external sources should be periodically reviewed manually. This is especially true for references that confirm prices, research, legal regulations, or technical specifications.
The domain has changed owner
The old domain may be sold and receive completely different content. The link will technically still work, but its context and quality will change.
This risk is especially noticeable in older articles. If an external resource is no longer relevant to the topic, the link should be replaced or removed, regardless of the response code.
The link has an incorrect rel
A common mistake is missing a sponsored tag for paid placements or automatically nofollowing where it's not required. Such instances often occur after changing a template or importing content.
Checking attributes helps tidy up your markup. The decision should be based on the actual nature of the link, not on a general template for the entire site.
When auditing outgoing links, I look beyond the HTTP code. A link may return a 200 response, but it may lead to a different site, an irrelevant page, or a domain that has changed ownership. Therefore, after the automated check, I separately review important external URLs, their anchors, the final pages after redirects, and rel attributes. A technically functional, relevant, and understandable source link is crucial for SEO and user experience.
What data needs to be analyzed in the report?
A list of found URLs is only useful when it's clear which parameters require attention. For a basic audit, it's enough to check the destination URL, anchor text, response code, and link attributes.
An outbound links analyzer speeds up sorting such data, but final decisions on important links are best made after viewing the destination page itself. The server's technical response doesn't indicate whether the content remains relevant.
URL and target domain
The full URL helps you see where exactly the transition leads. A single domain can have different sections, language versions, parameters, and old addresses, so checking the site name alone isn't enough.
The target domain is also useful for quick grouping. If a page contains many links to a single resource, this is visible in the report and simplifies further verification.
Anchor links
Anchor text is the text that redirects a user to another page. It should clearly describe the link's purpose and match the content of the target page.
An overly general anchor can sometimes hinder the comprehension of a piece of content, especially when several similar links are placed nearby. In such cases, it's better to use wording that helps understand the source's content before clicking.
HTTP status of the page
The response code indicates the technical status of the URL. A 200 status typically means the page is available, 301 or 302 indicates a redirect, 404 indicates the page is missing, and 5xx errors are related to server-side issues.
The code alone doesn't fully assess a link's quality. For example, a page might return a 200 but contain completely different content after a domain change.
Dofollow and nofollow
The term "dofollow" is typically used for a regular link without an attribute that restricts search engine processing. A separate rel="dofollow" value is not required in standard HTML markup.
Nofollow is used when the page owner doesn't want to transmit the usual link signal or isn't willing to directly recommend the resource. It shouldn't be automatically added to all external URLs.
Sponsored and UGC
rel="sponsored" is used for advertising, affiliate, and other paid links. This attribute helps accurately indicate the commercial nature of the placement.
rel="ugc" is intended for links in user-generated content, such as comments or forum posts. In some cases, attributes can be combined if this suits the nature of the link.
Internal and external links
Separating links by type helps you quickly understand the page structure. Internal URLs are checked for navigation, interlinking, and page accessibility, while external URLs require third-party verification.
The External Links Checker is especially useful when the report allows you to filter only external URLs. This reduces the amount of manual verification and simplifies the identification of problematic links.
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Answers to your questions
How to check external links on a page?
Enter the page address into the tool and run the scan. After processing, you'll receive a list of found external URLs along with available parameters, such as the anchor text, response code, and rel attribute.
After the automatic check, it's worth opening the most important links manually. This helps ensure that the destination page retains the desired content and matches the link text.
What is an outgoing external link?
An outbound external link leads from the current page to another domain. For example, a link from site-a.com/article to site-b.com/research would be an outbound link for the first page.
Such links are often used for sources, documents, social media, and third-party services. It's a good idea to periodically check them for availability and relevance.
What is the difference between an external link checker and a backlink checker?
The external link checker analyzes links located on the page being checked that lead outward. It works with outgoing URLs and helps identify technical issues in a specific document.
A backlink checker searches for links to your website from other resources. This is usually done using a separate database of external links, so the purposes of these services differ.
How to find broken external links?
First, you need to scan the page and check the HTTP statuses of the URLs found. 404 errors, long 5xx errors, and invalid redirects require additional attention.
After this, it's best to open the problematic URL manually. Sometimes the old URL has a new, updated version that can be used instead of deleting the link.
Should all external links be closed with nofollow?
No, automatically adding nofollow to all external links is not required. The attribute is selected based on the nature of the specific link.
Sponsored placements are available for paid placements, and UGC can be used for user-generated links. A regular editorial link to a useful source can remain without nofollow.
Do outbound links affect SEO?
Outbound links are part of the page's content and help users navigate to additional resources. Their presence alone does not guarantee a rise or fall in rankings.
When checking, it's best to focus on the relevance, accessibility, and quality of the destination page. Broken or random links should be fixed regardless of any attempts to evaluate their impact using a separate metric.
How often should you check outgoing links?
The frequency depends on the type of site and how quickly content is updated. Old articles with multiple sources should be checked more frequently than static pages with a few stable links.
Additional testing is necessary after redesigns, migrations, data imports, and bulk editing. It helps quickly identify errors introduced by technical changes.
Related services
Link Extractor
Online Link Extractor for extracting all links and URLs from a website page. Get internal and external links, anchors, and rel attributes in a single list.
Internal links checker
Check internal page links online: URLs, anchors, HTTP statuses, nofollow, redirects and broken links. Seo-Gen Internal Link Analyzer.
Checking a page's external links helps you quickly find broken URLs, unnecessary redirects, incorrect attributes, and outdated external sources. While the automatic report saves time, it's worth manually reviewing important links, especially if they support facts, prices, research, or technical data.
Enter the page URL, run the scan, and review the outgoing links found. Correct any problematic URLs, update attributes if necessary, and rescan after making the changes.
We reply within one business day. No newsletters, no “just a reminder” calls.
He will look at the site himself instead of passing it to a manager.
More on: Checking external links on a page
How does the external link check work?
The service receives the specified URL, downloads the available HTML, and extracts the links found in the page code. After this, the addresses can be separated into internal and external, their parameters can be checked, and the results can be displayed in a convenient list.
An external link analyzer reduces the time required for technical verification, especially when a page contains dozens of links. Manual review in such cases takes more time and easily leads to missed links, especially if part of the URL is hidden in buttons, cards, or long content.
What does external link analyzer check?
The basic report typically contains the link address, target domain, anchor text, and transition type. Additionally, the HTTP status, redirect, target, and nofollow, sponsored, and ugc attributes may be shown.
For an SEO audit, this data is enough to quickly separate healthy links from potentially problematic ones. The external link checker helps you see URLs that lead to deleted pages, use unnecessary redirects, or require manual verification.
Not every service displays the same set of fields. Therefore, when working with a report, you should focus on the actual data from a specific tool rather than relying on metrics related to backlink analysis or domain authority.
How to check outgoing links online?
The check follows a simple process: specify a page, run the scan, examine the results, and fix any issues found. It's most useful to check not only the URL itself but also its surroundings, as a technically accessible link may lead to irrelevant content.
The external link checker is especially useful for editorial pages, where URLs change over time. The same content may remain relevant for several years, while some external sources may move, be deleted, or change their content during this period.
Step 1: Specify the page URL
Enter the full URL of the page you want to check. It's best to use the final canonical URL without any extra GET parameters unless they affect the content.
The page must be accessible for loading. If the server blocks requests, requires authorization, or returns an error, the tool may produce incomplete results.
Step 2: Run the scan
Once launched, the service loads the page and extracts links from its HTML. Depending on the implementation, links from the main content, menu, footer, cards, and other elements may be included.
Before analyzing the results, it's helpful to ensure you've checked the correct URL version. A redirect to another page or language version may change the list of links found.
Step 3: Review the list of external URLs
First, check the destination URL, anchor, and HTTP status. If the tool shows rel, also check for any erroneous nofollow, sponsored, or ugc attributes.
Links with redirects, 404 errors, and unstable server responses require special attention. It's best to check them manually, especially if they're part of important commercial or expert content.
Step 4: Fix problematic links
If an external URL no longer works, find the current source page or remove the link. For a permanent redirect, it's best to replace the old URL with the final one, as long as it doesn't disrupt the flow.
Erroneous rel attributes should also be corrected according to their meaning. Advertising links should be marked as "sponsored", and user-generated links in the relevant content can be designated as UGC.
Step 5: Run a rescan
After making edits, it's worth rescanning the page. This helps ensure that the old URLs have actually been replaced and that the new links return the expected response codes.
Rechecking is especially useful after bulk editing. A single incorrect template or automatic replacement can affect multiple links on a page.
Why check external links on a page?
Over time, even high-quality content accumulates outdated links. Sources change addresses, sites are shut down, documents are moved, and domains change hands. Therefore, it's advisable to periodically review external URLs.
Checking external links helps identify such changes before they become a nuisance to users. For large materials with many sources, automated analysis is significantly more convenient than manual verification.
Finding broken external links
A broken link leads to an address that no longer opens correctly. A common example is a 404 error after deleting or moving an old page.
Such transitions degrade the user experience and reduce the quality of the content. If a current version of the source exists, it's best to replace the URL. If the relevant page no longer exists, the link can be removed.
Finding unnecessary redirects
A redirect itself doesn't indicate an error, but the old address can often be replaced with the final URL. This reduces unnecessary transitions and makes the link structure clearer.
Redirect chains should be checked especially carefully. Several consecutive redirects increase the risk that one of the intermediate pages will eventually stop working.
Quality control of external resources
A technically accessible link may lead to a weak or no longer relevant resource. Therefore, after automatic analysis, it's advisable to manually check important sources.
Assess whether the content matches the anchor text, whether the original page topic has been preserved, and whether the resource appears reliable. For expert content, it's preferable to cite primary and official sources when available.
Checking links after updating content
After moving, redesigning, or bulk editing, links sometimes change accidentally. An import or template error can affect multiple URLs at once.
Checking a page's external links after such changes helps quickly spot problems. This audit is especially useful before indexing the updated version of the page.
Improving user experience
People expect a link to open the exact content promised by the anchor and context. Redirecting to an error, an irrelevant page, or an outdated document creates unnecessary obstacles.
Regularly checking your sources helps keep them up-to-date. This is especially true for manuals, reference guides, and analytical materials, where external links are often used to confirm information.
How to evaluate outbound links from an SEO perspective?
The number of external links alone doesn't determine the quality of a page. It's much more useful to check the purpose of each link, whether it matches the text, and whether it leads to a reliable source.
Context, accessibility, and logical navigation are important for SEO. There's no need to artificially reduce the number of external links for the sake of a formal metric if they help the user understand the topic.
Destination Page Relevance
The landing page should match the anchor text and the sentence in which the link is located. If the user is expecting official documentation, a link to the company's homepage will be less useful.
When updating content, it's important to check not only the domain itself but also the specific destination page. The URL content may change even if the 200 response code remains.
Quality and reliability of the resource
When choosing an external source, it's best to focus on the origin of the information, the relevance of the page, and the resource's reputation. There is no universal DR threshold or other third-party metric for a standard editorial link.
When it comes to laws, standards, or technical documentation, it's logical to give priority to the official source. For statistics, it's better to use primary research, if available.
Anchor and link context
Anchor text should help the user understand the purpose of the link. Phrases like "here" or "follow the link" are sometimes acceptable, but in informational content they often lose out to more descriptive options.
The context around a link also matters. Even a precise anchor looks out of place if the link itself isn't related to the current paragraph.
URL accessibility
An external resource may be temporarily unresponsive due to a technical issue. Therefore, it's advisable to double-check a single 5xx response before deleting the link.
It's best to replace persistently inaccessible addresses. For important sources, it's helpful to find a current version of the document or a new page from the same owner.
Number of external links
There's no hard limit on the number of external links for a typical page. A news article can contain dozens of sources, as long as each link is useful and logically related to the text.
On a commercial page, there are usually fewer reasons to send users to third-party sites. Therefore, the number of links is determined by the page's purpose, not by a universal norm.
Nofollow, sponsored, and UGC: which attributes should you use?
Rel attributes help search engines understand the nature of individual links. They should be used appropriately, without automatically adding the same value to all external URLs.
The Outbound Link Checker can display these attributes next to the URL and anchor text. This is useful when auditing ad placements, custom links, and older pages where markup rules have changed over time.
When is nofollow used?
Nofollow is used when a page owner doesn't want to provide the usual recommendation signal for a specific link. The reasons may depend on the nature of the resource and the context of the placement.
There's no need to automatically add nofollow to all external links. An editorial link to a useful source can remain a regular link unless there's a specific reason for restricting it.
When is sponsored used?
Sponsored is suitable for paid links, advertising, affiliate programs, and other commercial placements. This attribute clearly indicates the commercial nature of the connection between pages.
If an advertising link is marked up differently or does not have the required attribute at all, it is worth checking it and adjusting the markup to match the actual placement type.
When is UGC used?
UGC is used for links added by website users. Typical examples include comments, forum posts, and other sections with user-generated content.
This attribute is especially useful on sites where the site owner doesn't manually control every published link. UGC can be combined with other rel values if needed.
Should I nofollow all external links?
No, there's no general requirement to nofollow every outgoing link. This approach renders the markup meaningless and doesn't take into account the nature of the specific transition.
A standard editorial link to a trusted source may remain without nofollow. Sponsored links are used for paid placements, and UGC is reserved for user-generated content.
Who needs an external link checker?
This check is useful for anyone responsible for the content and technical condition of a website. It reduces manual work and helps quickly identify issues in highly trafficked content.
The external link checker is especially useful for regular audits when you need to quickly check a specific URL without a deep analysis of the entire domain's link profile.
For SEO specialists
An SEO specialist uses the check for technical audits, analyzing outgoing URLs, and identifying broken links. The report helps quickly compile a list of URLs that require manual verification or correction.
This analysis is also useful when accepting content after publication. You can check whether the correct anchors, required attributes, and up-to-date source URLs have been preserved.
For webmasters and developers
For developers, the checker is useful after migrations, template updates, or mass link replacements. It helps spot incorrect URLs and redirects before the problem affects multiple pages.
During technical work, a re-check is especially useful. It shows whether the error has been resolved after the changes were made.
For content managers and editors
Editors often work with articles that contain links to research, documentation, and external services. Such materials become outdated over time, even without changes to the website itself.
Periodic review allows for timely replacement of outdated sources. This is especially important for reviews, instructions, and reference articles.
For website owners
A website owner doesn't always need a complex technical report. Often, it's enough to understand which external links are working and which require attention.
An external link checker helps you obtain this information without manually reviewing each link. After checking, you can pass on a specific list of issues to a developer or SEO specialist.
When should you check external links?
Checking is especially useful when page content has changed or hasn't been updated in a while. The older the content and the more sources it contains, the higher the likelihood of outdated URLs.
For large websites, it's convenient to include this check as part of a regular technical audit. For smaller projects, it's sufficient to run it after major changes and when updating old content.
Before publishing a new page
Before publishing a material, it's important to check that all external URLs open and point to the correct pages. This is especially important for materials with numerous links to documents and sources.
You can simultaneously check anchors and rel attributes. This control reduces the likelihood of an erroneous link remaining on the published page.
After a website transfer or redesign
Migration and redesign affect templates, components, and content structure. Even if the external URLs themselves haven't changed, errors may appear when importing or converting markup.
After launching the updated version, it's helpful to check key pages. This helps quickly identify links that were broken during the migration.
After a massive content update
Automatic replacements speed up the process, but one incorrect setting can change dozens of addresses. Therefore, it's advisable to rescan after bulk editing.
Pay special attention to pages where domains, URL parameters, or button templates have changed. Such changes are more likely to cause technical errors.
During a regular SEO audit
Regular checks help keep old pages in good working order. The frequency depends on the site's size, the number of external links, and the rate of content updates.
A news resource may require an audit more frequently than a small corporate website. There's no universal interval, so it's best to align the frequency with the project's actual activity.
How to interpret the test result?
The results can be conveniently divided into three groups. Working and relevant links can be left unchanged. URLs with redirects or questionable attributes should be checked manually. Unavailable and irrelevant URLs require correction or removal.
Below is a simple framework for evaluating results.
| Check result | What does this mean? | What to do |
|---|---|---|
| HTTP 200, relevant page | The link works correctly. | Leave unchanged |
| HTTP 301 or 302 | There is a redirect | Check the final URL |
| HTTP 404 | The page is missing | Find a replacement or remove the link |
| HTTP 5xx | The server is temporarily or permanently unavailable | Try again later |
| Incorrectrel | The attribute does not match the link type. | Correct the markup |
| Content has changed | The URL works, but the page is no longer relevant. | Replace the source |
This approach prevents the need to mechanically correct every element found. The external links checker provides technical data, but the final decision depends on the page content and the purpose of the specific link.