How to compare SEO agency quotes beyond price

When you receive quotes from three SEO vendors, the line items have different names. For the same work that one calls a "site diagnosis" and another calls an "SEO audit," you end up comparing only the price. Even if you search for "SEO agency" or "SEO consulting," the results are recommendation posts that merely list vendor names, so they give you no consistent way to compare the work.

When PION inspects a brand's site, we first pull up the Search Console page indexing report and compare those numbers against the diagnostic findings in the proposal. The steps below let you make the same checks before meeting an agency. The quote comparison follows Google Search Central's guidance.

1. Eight SEO services and how they appear on quotes

The basic work includes reviewing site structure, technical advice, content development, and keyword research. PION uses the same standards to check bot access, indexing, and sitemaps during a site audit. Google Search Central's vendor-selection document, Do I need SEO? (updated June 11, 2026), lists eight "useful services" a vendor can provide.

SEO consulting covers review, advice, and training, while the brand handles the edits and publishing. An SEO managed service means the vendor also executes content development and campaign management. Many companies call themselves consultants yet also do the managed-service work, so distinguish them by which rows appear on the quote. A quote labeled "specialized SEO firm" or "SEO service" is likewise a combination of the rows in this table.

2. Three indexing figures to check before the meeting

Before the meeting, jot down the number of indexed pages, the number of non-indexed pages, and the top three reasons for non-indexing.

1. In Search Console's left menu, go to Indexing > Pages and write down the two numbers above the chart.
2. From the "Why pages aren't indexed" table, copy the top three reasons in order of page count.
3. Next to it, write the actual page count: the number of CMS posts plus the number of static pages.
4. When the proposal arrives, compare its findings with your notes to see what new issues the agency found.

The Page Indexing report help doc explains: "If the total number of URLs in this report is much lower than the number of pages on your site, then Google is not finding the pages on your site." If the actual page count you wrote in step 3 diverges from the total URL count in the report, the cause should be spelled out in the proposal. Actions for each reason are in the status-by-status table in Google Search registration and site verification: what to check when registered but not appearing.

In the meeting, ask all three candidates the question list from the vendor-selection document in the same order. For Search Console permissions, follow the same document's advice, "Grant only read access to Search Console", and start with the restricted user role from the Managing users, owners, and permissions help doc ("has view-only access to most data").

3. Six quote items to compare besides price

Use one table to compare each quote's scope, deliverable ownership, measurement criteria, change-history sharing, link terms, and delivery deadlines.

The vendor-selection document asks: "What results can you deliver, and over roughly what time frame do you expect them? And how can you measure the results?" and "Can you share all the changes you apply to the site and explain in detail your recommendations and the reasons for them?". These questions correspond to the measurement-criteria and change-history rows. If the quote does not answer them, ask the questions in the meeting. Use Search Console's average position as the reference for the ranking numbers. Google has stated that third-party tools "cannot access Google's internal ranking data."

4. Why to reject ranking guarantees

Google has stated that "no one can guarantee a #1 ranking in Google Search results," and if the method used to keep such a guarantee violates the spam policies, the brand's site bears the responsibility. Google Search Essentials (updated December 18, 2025) explains that "it never costs anything to appear in Google Search results, in any case."

The Spam policies for Google web search (updated September 2, 2026) classify "buying or selling links for ranking purposes" as link spam and "operating multiple websites with slightly different URLs and homepages" as doorway abuse, and state that violating sites "may rank lower or not appear at all in search results." The vendor-selection document warns that "your site could be completely removed from Google's index," while making clear that "ultimately, you yourself are responsible for the behavior of the vendors you use." If a quote states a link quantity as a number, ask about the placement sites and the compensation; if the answer is undisclosed, exclude that row.

5. Do you need separate Google and Naver SEO agencies?

For technical checks, both search engines require the same items, so a single vendor suffices; you just need to check whether the quote includes Naver-only tasks, such as Search Advisor registration and RSS submission in Webmaster Tools. The ten items listed in Naver Search Advisor's The Purpose of Search Engine Optimization guide include robots.txt allowance, sitemap submission, removing noindex, and standard HTML links. They overlap with Google Search Essentials' requirements and recommendations. Naver states that "site registration is supported only at the host level," and its search robot is named Yeti, so in robots.txt you check the Googlebot group and the Yeti group separately.

Vendors that surface under searches for "Google SEO vendor" or "Google SEO agency" often double as Naver SEO vendors. If a quote from a Google SEO managed-service firm or Google SEO consulting includes rows for Search Advisor registration, Webmaster Tools RSS submission, and channel-info markup, then one vendor handles both; if not, contract the Naver work separately.

6. Which AI search tasks an SEO agency can handle

The SEO tasks in the table in section 1 can cover Google AI Overviews. Whether a brand appears in ChatGPT or Gemini answers is not captured in Search Console, so it requires separate measurement. The vendor-selection document includes, among its tool-evaluation items, "If there is advice about optimizing for AI environments (also called 'AEO' or 'GEO' services), does that advice align with Google Search's official guidance on optimizing for generative AI features?" and AI features and your website (updated December 31, 2025) states that for appearing in AI Overviews "there are no additional requirements." The items to compare in a measurement contract are in GEO managed-service agency recommendations: why AI answers change every time, and selection criteria.

If you extend the scope to AI answer visibility, see what PION handles and what the brand retains in the contract terms in the GEO managed-service overview. For the bot access and indexing checks from section 2, follow the same order in the 5-minute GEO readiness assessment.

Frequently asked questions

What should I check when choosing an SEO vendor?

Ask each candidate the interview question list provided by Google Search Central in the same order, and in the quote, compare scope of work, deliverable ownership, measurement criteria, change-history sharing, and link terms. If, before the meeting, you write down the number of indexed pages, the number of non-indexed pages, and the top three reasons for non-indexing from the Search Console page indexing report, you can compare on the spot what new issues the vendor's audit found. PION pulls up the same report first during the site-inspection stage.

What is the difference between SEO consulting and an SEO managed service?

Consulting covers site review, technical advice, keyword research, and training, with the brand handling edits and publishing; the managed service means the vendor also executes content development and campaign management. Since a company often offers both, check whether the quote includes implementation. If you have someone in-house to write posts and edit the site, consulting is enough.

Should I sign with an SEO agency that guarantees rankings?

No, you should not. Google Search Central has stated that "no one can guarantee a #1 ranking in Google Search results." Buying and selling links or creating multiple similar sites to keep such a guarantee violates the spam policies, and the spam policy document advises that such sites may rank lower or be dropped from search results. The vendor-selection document makes clear that responsibility for the outcome lies with the site owner.

Do I need to contract a Google SEO vendor and a Naver SEO vendor separately?

For technical checks, a single vendor is enough, because robots.txt, sitemaps, noindex, and standard HTML links are required identically by both Google and Naver. The Naver-only tasks are Search Advisor registration, the RSS submission menu in Webmaster Tools, and channel-info markup, and whether Naver's search robot Yeti is allowed in robots.txt is checked separately from Googlebot. If these items are on the quote, one vendor handles both; if not, contract the Naver work separately or do it yourself.

How much Search Console access should I give an SEO vendor?

In the diagnostic stage, add them as a restricted user. Google's vendor-selection document advises to "grant only read access to Search Console," and the Search Console help describes a restricted user as one who "has view-only access to most data." After signing, if you want the vendor to submit sitemaps and request indexing, add them as a full user, while the brand retains owner permissions.