How to Brief an SEO Agency for Technical Audits, On-Page Optimization & Performance

You’ve decided to hire an SEO agency. Good call. But here’s the reality: most briefs are vague wish lists—“we want more traffic” or “please rank us for 50 keywords.” That won’t get you a precise technical audit, a content strategy that matches search intent, or a performance plan that actually moves Core Web Vitals. A strong brief is the difference between an agency guessing what you need and them delivering a roadmap that works.

This article walks you through how to craft a brief that covers technical SEO audits, on-page optimization, and performance improvements. We’ll focus on what matters: crawl budget, duplicate content, intent mapping, and link building risks. No guaranteed rankings, no black-hat shortcuts—just a practical, risk-aware approach.

Why a Technical SEO Audit Is Your Starting Point

Before you touch a single page, you need to know what’s broken. A technical SEO audit—sometimes called a site audit or technical analysis—evaluates how search engines crawl, index, and render your site. Without this, you’re optimizing blind.

What to include in your brief for a technical audit:

• Crawl budget and crawlability: Ask the agency to analyze your crawl budget—the number of URLs Googlebot will crawl on your site within a given timeframe. For large sites (10,000+ pages), poor crawl allocation can leave important pages unindexed. The audit should check your robots.txt file for accidental blocks and your XML sitemap for errors like broken URLs or missing priority signals.
• Core Web Vitals: This is non-negotiable. The audit must measure LCP (Largest Contentful Paint), CLS (Cumulative Layout Shift), and FID/INP (First Input Delay / Interaction to Next Paint). Poor Core Web Vitals can tank rankings, especially after Google’s page experience update. Ask for a breakdown of which pages fail and why—server response times, render-blocking resources, or layout shifts from ads.
• Duplicate content and canonical tags: Duplicate content isn’t a penalty, but it dilutes ranking signals. The audit should identify pages with near-identical content and confirm that canonical tags point to the preferred URL. Misconfigured canonicals—like pointing to a paginated series instead of the main page—are a common error.

Risk callout: Be wary of agencies that promise “instant SEO results” from a technical audit. Real improvements take weeks to months. Also, avoid any agency that suggests removing all parameters from URLs without checking their purpose—this can break functionality.

Table: Common Technical Audit Findings and Their Impact

On-Page Optimization: Beyond Keywords

On-page optimization—also called on-page SEO or page optimization—involves aligning your content and HTML structure with search intent. This isn’t just about stuffing keywords into title tags. It’s about matching what users actually want when they search.

How to brief an agency for on-page work:

• Keyword research and intent mapping: The agency should perform keyword research—also known as keyword analysis or search term research—to find terms your audience uses. But more critically, they need to map each keyword to search intent: informational (e.g., “how to fix a leaky faucet”), navigational (e.g., “Facebook login”), commercial (e.g., “best SEO tools 2025”), or transactional (e.g., “buy Ahrefs subscription”). A page optimized for the wrong intent won’t convert, no matter how good the content.
• Content strategy and editorial planning: Your brief should ask for a content strategy—sometimes called an SEO content strategy or editorial strategy—that outlines which topics to cover, in what format (blog posts, guides, product pages), and how they connect. For example, a pillar page on “technical SEO” might link to cluster pages on “crawl budget,” “robots.txt,” and “canonical tags.” This structure signals topical authority to search engines.
• Duplicate content prevention: On-page optimization includes checking for content duplication across your site. If two pages serve the same purpose—like a product page and a category page with similar descriptions—the agency should recommend consolidating them or using canonical tags. Duplicate content can confuse search engines and split ranking signals.

Risk callout: Watch for agencies that promise to “fix duplicate content in 24 hours” by noindexing pages. That’s a shortcut that can remove valuable pages from the index. Instead, ask for a content consolidation plan.

Performance: Core Web Vitals and Site Speed

Performance optimization goes beyond technical audits. It’s an ongoing process. Your brief should specify that the agency will address Core Web Vitals and overall site speed as part of the engagement.

What to request:

• Baseline measurement: The agency should run a performance audit using tools like Google PageSpeed Insights, Lighthouse, or CrUX data. They need to provide a baseline for LCP, CLS, and INP, along with a list of the worst-performing pages.
• Actionable fixes: For each issue, the brief should ask for specific recommendations. For example, if LCP is slow due to a large hero image, the fix might be to convert it to WebP, lazy-load below-the-fold content, or use a CDN. If CLS is high from ads, the agency might suggest reserving space for ad slots.
• Continuous monitoring: Performance isn’t a one-time fix. Ask the agency to set up monitoring—using tools like Google Search Console’s Core Web Vitals report or a third-party service—and provide monthly reports on improvement.

Risk callout: Avoid agencies that claim they can “pass Core Web Vitals in one week” without understanding your CMS or hosting environment. Some fixes, like server-side changes, require developer time. Also, be cautious of any recommendation to remove all third-party scripts—this can break analytics or ad revenue.

Link Building: The Risky Side

Link building—also called backlink building or link acquisition—is often the most misunderstood part of SEO. Your brief should be clear about your risk tolerance.

How to brief a link building campaign:

• Backlink profile analysis: The agency should start with a backlink analysis—also known as inbound link analysis or link profile analysis—to assess your current backlink profile. They’ll look at metrics like Domain Authority (DA), Trust Flow (TF), and the ratio of dofollow to nofollow links. If your profile has toxic backlinks (e.g., from link farms or spam sites), they should recommend disavowal.
• Outreach strategy: Ask for a detailed outreach plan. This should include how they’ll identify relevant sites (e.g., industry blogs, resource pages, broken link opportunities), how they’ll pitch content (guest posts, original research, or interviews), and how they’ll measure success (e.g., number of acquired links, increase in referring domains).
• Risk mitigation: Your brief should explicitly state that you do not want black-hat links—such as paid links, private blog networks (PBNs), or automated comment spam. These can trigger manual penalties from Google, leading to traffic drops that are hard to recover from. Ask the agency to provide a list of sites they’ve built links for in the past (anonymized) and their approach to avoiding penalties.

Risk callout: Be skeptical of agencies that promise “100 backlinks in 30 days” or “guaranteed DA increase.” Quality links take time. Also, avoid any agency that offers “link building packages” without explaining the method—this is often a red flag for PBNs.

Table: Link Building Approaches Compared

How to Structure Your Brief

A good brief is a checklist. Here’s what to include:

1. Site overview: URL, CMS, hosting provider, current traffic (if known), and any past SEO work.
2. Goals: Specific, measurable objectives (e.g., “increase organic traffic to service pages by 30% in 6 months” or “improve LCP to under 2.5 seconds for top 20 product pages”).
3. Scope of work: Clearly define what the audit covers (e.g., all pages, only blog, or specific sections) and what on-page tasks are included (e.g., title tags, meta descriptions, header tags, content updates).
4. Risk tolerance: Explicitly state that you do not want black-hat tactics. Include a clause about penalties and responsibility.
5. Deliverables: Ask for a written report with prioritized issues, a content calendar (if applicable), and a link building plan with timelines.
6. Reporting cadence: Monthly reports on progress, including changes in crawl stats, Core Web Vitals scores, and backlink growth.

Final Checklist for Your Brief

• Technical audit covers crawl budget, robots.txt, XML sitemap, and canonical tags.
• Core Web Vitals (LCP, CLS, INP) are measured and prioritized.
• Duplicate content is identified with a consolidation plan (not just noindex).
• Keyword research includes intent mapping (informational, commercial, transactional).
• Content strategy outlines pillar-cluster structure and editorial calendar.
• Link building plan specifies outreach method and risk mitigation.
• No black-hat tactics are permitted; penalties are the agency’s responsibility.
• Reporting includes monthly updates with actionable metrics.

By briefing your SEO agency with this level of detail, you’re not just asking for “SEO services”—you’re setting up a partnership that focuses on sustainable, risk-aware growth. For more on how to evaluate an agency’s technical capabilities, check out our guide on technical SEO audits or learn about on-page optimization best practices.