How to Evaluate a Link Building Agency: 12 Questions to Ask

TL;DR
Before hiring a link building agency, ask how it plans to acquire links, how it judges a website beyond DR or DA, and whether it can show past campaigns with context. Check that placements fit your industry, that its methods follow Google's spam policies, and that each delivered link comes with a live URL, anchor text and link attribute. Get the reporting cadence, replacement policy and full price breakdown in writing, and ask how the strategy will change as your business grows. Favour relevance and transparency over link volume.
Link building is an important part of search engine optimization (SEO), helping websites build authority, improve search visibility, and attract relevant referral traffic. However, successful link building is not just about acquiring as many backlinks as possible. The relevance of linking websites, content quality, and the strategy behind each placement all influence the potential value of a campaign.
Choosing the right link building agency can significantly impact your SEO performance. A reliable agency focuses on relevant backlinks, transparent processes, and sustainable growth. The wrong partner, however, may deliver low-quality links, use risky tactics, or promise results that are difficult to achieve.
With so many agencies offering link building services, it is essential to evaluate their expertise before making a decision. Asking the right questions helps you understand their methods, pricing, reporting practices, and ability to support your business goals.
Here are 12 important questions to ask before hiring a link building agency.
1. What Is Your Link Building Strategy?
Start by asking how the agency plans to acquire backlinks for your website. A professional provider should clearly explain its approach, including prospect research, outreach, content creation, and placement acquisition.
Common strategies include guest posting, digital PR, competitor backlink analysis, resource page outreach, and relationship-based link building. Each method serves different purposes, depending on your industry and objectives.
For example, a SaaS company may benefit from links on relevant technology blogs, software review websites, and industry publications. An agency should tailor its strategy to your niche instead of applying the same approach to every client.
Ask how it identifies opportunities, prioritizes target pages, and measures success. Be cautious of providers that focus entirely on link volume without explaining how their activities support your SEO goals.
A strong strategy should prioritize relevance, editorial quality, and long-term value rather than acquiring backlinks simply to increase numbers.
2. How Do You Evaluate Website Quality?
The quality of the linking website is one of the most important factors in link building. A relevant, trustworthy publication may offer more value than a website with impressive metrics but poor content and little genuine audience engagement.
Ask the agency how it evaluates potential websites before approving them for a campaign. Its assessment should consider topical relevance, content quality, organic visibility, editorial standards, publishing patterns, and website reputation.
Third-party metrics such as Domain Rating (DR) and Domain Authority (DA) can help with initial screening, but they should not be the only criteria. These scores do not independently establish whether a website is trustworthy or suitable for your business.
You should also ask whether the agency manually reviews individual pages and checks for signs of websites created primarily to sell backlinks.
Request a few examples of previously approved websites and ask why they were selected. This will help you determine whether the agency follows meaningful quality standards or relies on arbitrary metric thresholds.
3. Can You Share Previous Campaigns and Results?
An agency's previous work can reveal a great deal about its experience and ability to deliver results. Ask for case studies, campaign examples, or reports from businesses similar to yours.
Look for evidence of relevant referring domains acquired, improvements in keyword visibility, growth in organic traffic, and stronger performance of target pages. These indicators provide more insight than backlink counts alone.
Ask about the campaign's starting position, duration, target pages, acquisition strategy, and measurement methods. Understanding the context makes it easier to evaluate whether the reported results are realistic.
It is also important to recognize that SEO improvements rarely come from a single factor. Technical changes, content updates, and other marketing activities can influence performance alongside backlinks.
If the agency cannot disclose client names because of confidentiality agreements, it may still provide anonymized case studies or sample reports. The objective is to verify that the provider has a repeatable process and understands how to evaluate campaign performance.
4. Are Your Backlinks Relevant to My Industry?
Relevance is essential when evaluating a link building agency. Backlinks from websites that cover related topics can provide useful context and connect your business with an appropriate audience.
Ask how the agency identifies niche-relevant websites and whether it prioritizes topical alignment over domain metrics.
For example, a cybersecurity SaaS company may benefit from placements on technology publications, security blogs, and enterprise IT websites. A link from an unrelated website with a high DR score may offer less value for its specific objectives.
Relevance should extend beyond the domain itself. The individual article, surrounding content, and destination page should also fit naturally together.
You should also confirm whether the agency considers your target audience, industry, and geographic market when selecting websites.
A reliable provider should be able to explain why a particular publication is suitable for your campaign. If it offers the same generic website list to every client, it may not be investing enough effort in understanding your business.
5. How Do You Find Websites and Secure Placements?
Understanding how an agency finds websites and secures backlinks helps you assess the quality and sustainability of its process.
Ask whether it uses competitor backlink analysis, personalized outreach, digital PR, journalist relationships, resource page outreach, or established publisher relationships. You should also clarify whether the work is completed in-house or outsourced to external providers.
Outsourcing is not necessarily a problem, but the agency should explain who manages the process and how it maintains quality standards.
A professional provider should have a clear workflow for researching prospects, contacting relevant editors, creating suitable content, and verifying published links.
Be cautious of agencies that promise hundreds of placements within a few days without explaining how those links will be acquired. Such promises may indicate automated outreach or placements on websites with limited editorial value.
The goal is to find an agency with a repeatable process that can generate relevant placements consistently without compromising quality.
6. Do You Follow Search Engine Guidelines?
Before hiring an agency, ask how its link building practices align with Google's spam policies. This is particularly important because manipulative link schemes can create SEO risks.
Google identifies practices such as buying or selling links for ranking purposes, excessive link exchanges, and large-scale guest posting intended to manipulate rankings as potential violations of its spam policies.
Paid placements and sponsorships can be legitimate marketing activities when handled appropriately. Links involving paid arrangements should use suitable qualifying attributes, such as rel="sponsored" or rel="nofollow", where applicable.
Ask the agency how it handles sponsored content, reciprocal links, guest posts, and other potentially risky practices.
A trustworthy provider should explain its methods openly and distinguish between earning editorial links and participating in schemes designed to manipulate search rankings.
Be wary of agencies that refuse to disclose their acquisition methods or guarantee specific ranking improvements. No provider can guarantee particular Google rankings, and a responsible agency should acknowledge the limitations and risks associated with link building.
7. What Types of Backlinks Will I Receive?
Not all backlinks are the same. Before signing a contract, understand exactly what the agency includes in its link building packages.
Ask whether the campaign focuses on guest posts, editorial links, digital PR placements, niche edits, resource page links, or other formats. Each method has different requirements, costs, and quality considerations.
You should also understand the difference between dofollow and nofollow links. Links without restrictive qualifying attributes can generally pass ranking signals, while nofollow and sponsored attributes communicate additional information about the relationship. Google may treat these attributes as hints when processing links.
Ask whether each delivered backlink will include a live URL, destination URL, anchor text, and link attribute details. You should also confirm whether links are placed within relevant content and whether the pages are accessible to users and search engines.
A good agency will explain the purpose of different backlink types instead of claiming that every placement delivers identical SEO benefits.
Understanding the deliverables upfront helps you compare agencies more accurately and avoid paying for placements that do not meet your expectations.
8. How Do You Choose Anchor Text and Target Pages?
Anchor text is the clickable text used in a hyperlink. It helps readers understand the destination page and provides context about the linked content.
Ask how the agency selects anchor text and decides which pages should receive backlinks. A thoughtful approach considers your existing backlink profile, target keywords, landing pages, and overall SEO strategy.
Overusing exact-match commercial keywords can create an unnatural backlink profile, particularly when many links are acquired through controlled placements. A balanced strategy may include branded anchors, descriptive phrases, URL anchors, and relevant keyword variations.
The destination page matters just as much. While homepage links can support brand visibility, product pages, useful resources, research reports, and comparison pages may also deserve attention. You can use Dresma to add clear visuals to these pages, making them more useful for readers and easier to link to.
Ask whether the agency reviews your website before recommending target pages and whether it coordinates with your content or SEO team.
The right approach prioritizes natural language and contextual relevance rather than forcing the same keyword into every backlink. This helps create a more credible backlink profile while supporting your broader content strategy.
9. How Do You Measure Performance and Report Results?
A link building campaign should have clear deliverables and a consistent reporting process. Ask how frequently the agency reports progress and which metrics it tracks.
Reports should generally include acquired backlinks, referring domains, linking page URLs, destination URLs, anchor text, and link attributes. Depending on the service, reports may also include estimated organic traffic, domain metrics, and publication dates.
However, the number of backlinks alone does not determine campaign success. You should also monitor keyword visibility, organic traffic, referral visits, and conversions on the pages being supported.
Ask whether you will receive access to a live dashboard or spreadsheet and whether the agency explains delays, missed targets, and quality issues.
It is equally important to establish realistic expectations. Link building can take time to influence search performance, and the impact of individual links is not always directly measurable.
A reliable agency will provide transparent reports, explain its progress, and help you understand how the campaign contributes to your broader SEO objectives without promising guaranteed rankings.
10. What Happens if a Backlink Is Removed?
Backlinks can disappear when publishers update articles, remove pages, change URLs, or modify their linking policies. A link may also remain live but change from dofollow to nofollow.
Ask the agency what happens when a delivered backlink is removed or no longer meets the agreed requirements. Its replacement policy should be clearly documented before you begin the campaign.
Find out how long the agency monitors placements, how frequently it checks link status, and what qualifies a backlink for replacement.
For example, an agency may offer a defined replacement period for links that disappear shortly after publication. Another may include ongoing monitoring as part of its monthly service.
You should also ask whether replacements must meet the same quality and relevance standards as the original placements.
Automated monitoring can identify missing links and attribute changes, while manual reviews help assess whether a placement remains relevant and useful.
A clear remediation policy protects your investment and ensures that link delivery does not become the agency's final responsibility once a placement goes live.
11. How Much Does Your Service Cost?
Link building agencies use different pricing models, including per-link pricing, monthly retainers, fixed packages, and customized campaigns. Costs depend on factors such as outreach effort, publisher quality, content requirements, and campaign complexity.
Ask for a breakdown of what the quoted price includes. This may cover prospect research, content creation, outreach, publisher coordination, reporting, and link monitoring.
If the agency charges per placement, clarify what qualifies as a successfully delivered link. Does the fee apply only after publication and verification? Are replacements included? Are sponsored placements charged separately?
You should also check for additional charges related to writing, premium publishers, or campaign management.
Extremely inexpensive packages may rely on low-quality or irrelevant websites, although price alone does not determine quality. Similarly, a higher price does not automatically guarantee better results.
Compare agencies based on the relevance and quality of their expected placements, the transparency of their process, and the services included in the package.
The objective is to find a provider that delivers meaningful value rather than simply offering the lowest price or the highest number of backlinks.
12. Can You Scale and Adapt the Strategy as My Business Grows?
Your link building priorities may change as your website expands, new products launch, and competitors strengthen their SEO efforts. Ask how the agency adapts its strategy over time.
A reliable partner should review campaign performance, identify new opportunities, evaluate competitors, and adjust priorities according to your business goals.
For example, a SaaS company might initially focus on building brand authority before shifting toward product comparison pages, integration pages, or research-driven content that attracts relevant links.
Ask how frequently the agency reviews its strategy, what happens when results fall below expectations, and whether campaign priorities can be adjusted as your needs evolve.
You should also understand whether the agency can increase campaign volume without compromising website quality or editorial standards.
Finally, ask how it collaborates with your internal marketing team. Link building can work more effectively when aligned with content marketing, digital PR, and technical SEO.
The right agency should operate as a strategic partner, helping your business pursue sustainable growth instead of simply delivering a fixed number of links every month.
Final Thoughts
Choosing a link building agency requires more than comparing prices, domain metrics, or the number of backlinks included in a package. You need to understand how the agency finds opportunities, evaluates websites, follows search engine guidelines, measures performance, and manages links after publication.
The 12 questions in this guide provide a practical framework for evaluating potential partners. Use them when reviewing proposals, speaking with agencies, and negotiating contracts.
Before making your final decision, request sample reports, review previous work, confirm replacement policies, and establish clear expectations for deliverables and communication.
Most importantly, prioritize relevance, transparency, and sustainable practices over backlink volume. A reliable link building agency should understand your business goals, explain its methods clearly, and develop a strategy that supports long-term SEO growth.

Written by
Co-founder & CEO of SAASY LINKS, the B2B SaaS link building and AI visibility agency. 10+ years in SEO and growth marketing for SaaS brands. Mentor at 500 Startups and Techstars. Runs the Backlink Masterminds community for link builders.
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