It is one of the most common frustrations business owners have with SEO: they are paying a monthly retainer, receiving reports full of terminology they do not fully understand, and struggling to connect the activity to anything tangible happening on their website or in their business. If you have ever wondered what an SEO company is actually doing behind the scenes — and whether it justifies the investment — this guide answers that question in plain language.
The Short Answer
An SEO company works to make your website more visible in organic search results — the unpaid listings that appear when someone searches on Google or another search engine. To do that, they work across three interconnected areas: the technical health of your website, the quality and relevance of your content, and the authority your website has earned through links from other sites.
Everything an SEO company does — every audit, every report, every piece of content, every outreach email — connects back to one or more of these three areas. Understanding each one makes the monthly activity on your account far more legible.
1. Technical SEO: Making Your Website Easy for Google to Find and Understand
Before Google can rank your website, it needs to be able to find it, crawl it, and understand what it is about. Technical SEO is the discipline of ensuring your website meets these requirements — and that nothing in its structure, speed, or code is preventing search engines from doing their job.
What technical SEO work actually involves:
Site audits An SEO company will regularly audit your website using specialist tools — Screaming Frog, Siteburst, SEMrush, Ahrefs — to identify issues that could be harming your visibility. These audits surface problems that are often invisible to the naked eye but significant in their impact.
Crawl error resolution Search engines use automated bots to crawl your website and index its pages. Crawl errors — broken links, redirect chains, pages blocked from indexing, duplicate content — waste crawl budget and prevent pages from being indexed properly. An SEO company identifies and resolves these systematically.
Site speed optimisation Page loading speed is a confirmed Google ranking factor and a critical user experience metric. SEO companies assess your Core Web Vitals — Google’s framework for measuring loading performance, interactivity, and visual stability — and work with your development team to improve them. This may involve compressing images, implementing browser caching, reducing server response times, or addressing render-blocking resources.
Mobile optimisation Google uses mobile-first indexing — meaning it primarily uses the mobile version of your website to determine rankings. SEO companies ensure your site renders correctly on mobile devices, with appropriate font sizes, tap targets, and layout adjustments.
Site architecture and internal linking How your pages are structured and connected to each other affects how search engines understand the hierarchy and importance of your content. SEO companies review and improve your site architecture — URL structure, category organisation, internal link strategy — to ensure your most important pages receive appropriate emphasis.
Structured data implementation Structured data is code added to your pages that helps search engines understand your content more precisely — enabling rich results like star ratings, FAQ dropdowns, product prices, and event listings in search results. SEO companies implement and maintain this markup to improve your search result appearance.
XML sitemaps and robots.txt Your sitemap tells search engines which pages exist on your website. Your robots.txt file tells them which pages not to crawl. SEO companies ensure both are correctly configured — that important pages are included in your sitemap and that nothing valuable is accidentally blocked.
2. Content Strategy and Creation: Giving Google What It Needs to Rank You
Google’s fundamental purpose is to connect searchers with the most relevant, useful, and authoritative content for their query. Content strategy is the discipline of understanding what your target audience is searching for and creating content that earns those rankings.
What content work actually involves:
Keyword research Before any content is created, an SEO company identifies the specific terms and phrases your target audience uses when searching for what you offer. This involves analysing search volume — how many people search for a term each month — search intent — whether the searcher wants information, a product, a service, or a local business — and keyword difficulty — how hard it will be to rank for a given term given the competition.
The output is a prioritised list of keyword opportunities that forms the foundation of your content strategy.
Content auditing Before creating new content, a good SEO company will audit what already exists on your website. This identifies pages that are performing well and could be improved further, pages that are underperforming and could be consolidated or redirected, gaps where important topics are not covered, and duplicate or thin content that may be diluting your site’s overall quality signals.
Content creation and optimisation Based on keyword research and the content audit, your SEO company will plan and produce content designed to rank. This includes:
- Blog posts and articles targeting informational search queries
- Service and product pages targeting commercial and transactional queries
- Location pages targeting local search queries
- Landing pages targeting specific campaign keywords
- FAQ content targeting question-based searches
For each piece of content, the SEO company ensures that the target keyword is addressed with appropriate depth and context, that the content is structured for readability and search engine comprehension, that meta titles and descriptions are optimised for click-through rates, and that internal links connect the content to related pages appropriately.
Content refresh and updating Existing content that has lost rankings over time — because competitors have published better content, because the information has become outdated, or because search intent has evolved — can often be recovered through systematic updating and improvement. SEO companies monitor content performance and proactively refresh underperforming pages rather than always creating new ones.
Topic authority building Modern SEO rewards websites that demonstrate comprehensive expertise across a subject area — not just individual pages that rank for single keywords. SEO companies build topic clusters — interconnected groups of content that together cover a subject in depth — to establish your website as an authoritative source in your field.
3. Link Building: Earning the Authority That Drives Rankings
Google treats links from other websites to yours as votes of confidence — signals that your content is credible, useful, and worth referencing. The quantity and quality of these links — your backlink profile — is one of the most powerful factors influencing where your website ranks.
Link building is the discipline of earning these links through deliberate strategy. It is also the area of SEO most susceptible to abuse — and the one where the difference between legitimate and illegitimate practice is most consequential.
What link building work actually involves:
Backlink profile analysis Before building new links, an SEO company will audit your existing backlink profile to understand your current authority level, identify toxic or low-quality links that may be harming your rankings, and establish a baseline for measuring progress.
Competitor link analysis Understanding which websites link to your competitors — and why — reveals link building opportunities that are directly relevant to your market. SEO companies analyse competitor backlink profiles to identify patterns and targets that could be replicated or improved upon.
Content-led link acquisition The most sustainable link building strategy is creating content so genuinely useful, original, or interesting that other websites naturally want to reference it. SEO companies identify opportunities for linkable assets — original research, comprehensive guides, tools, infographics, data studies — and promote them to relevant publishers and websites in your industry.
Digital PR Digital PR involves earning links through media coverage — getting your business, data, or expertise featured in online publications, news sites, and industry blogs. An SEO company may pitch stories, data, or expert commentary to journalists and editors to earn high-authority editorial links that significantly boost your domain’s credibility.
Outreach and relationship building SEO companies maintain databases of relevant websites in your industry and conduct personalised outreach to editors, bloggers, and content managers — proposing guest contributions, suggesting relevant resources, or identifying broken links that your content could replace.
Disavow management If your website has accumulated toxic or spammy backlinks — through previous bad-faith SEO work or simply through the nature of the web — an SEO company can use Google’s disavow tool to signal that these links should be ignored, protecting your site from any negative association.
4. Local SEO: Visibility Where It Matters Most for Local Businesses
For businesses that serve a specific geographic area — whether a single location or multiple — local SEO is a distinct and critically important discipline. It determines whether your business appears in the local map pack, the prominent set of three business listings that appears at the top of Google results for location-based searches.
What local SEO work involves:
Google Business Profile management Your Google Business Profile — the listing that appears in Google Maps and local search results — is the single most important asset in local SEO. An SEO company will optimise every element of your profile: category selection, service descriptions, opening hours, photos, Q&A responses, and review management strategy.
Local citation building Citations are mentions of your business name, address, and phone number — your NAP data — across directories, listing sites, and local platforms. Consistency of NAP data across the web is a significant local ranking signal. SEO companies audit existing citations for inconsistencies and build new ones across relevant platforms.
Local content creation Content tailored to your specific location — neighbourhood guides, locally relevant blog posts, location-specific service pages — helps your website rank for geographically qualified searches and signals local relevance to Google.
Review acquisition strategy The volume and quality of your Google reviews is a meaningful local ranking factor. SEO companies help businesses develop systematic, compliant strategies for encouraging satisfied customers to leave reviews.
5. Reporting and Analysis: Connecting Activity to Results
Everything described above generates data. A professional SEO company translates that data into clear, meaningful reporting that helps you understand what is working, what is not, and what direction the campaign is heading.
What reporting and analysis involves:
Monthly performance reports A standard monthly report from a professional agency covers organic traffic trends, keyword ranking movements, technical health indicators, backlink growth, and — critically — conversions and leads attributable to organic search. The best reports tell a story rather than just displaying data.
Google Analytics and Search Console management SEO companies configure and maintain your analytics and search console accounts, ensuring data is being tracked accurately and that conversion events are properly recorded. Without clean data, campaign decisions are made on unreliable information.
Competitor monitoring Rankings and traffic do not exist in isolation — they are relative to what your competitors are doing. SEO companies track competitor performance and alert you to significant changes in the competitive landscape that may require a strategic response.
Algorithm update monitoring When Google releases a significant algorithm update — and major updates happen several times per year — your SEO company should proactively communicate how it may affect your rankings and what, if anything, needs to change in response.
What You Should Expect to See Each Month
Given everything above, here is what a meaningful monthly SEO engagement should produce:
- A technical audit review with issues identified and resolved or prioritised
- Progress on previously identified technical fixes
- New content published or existing content updated according to the agreed strategy
- Active link building outreach with documented results
- A clear monthly report covering traffic, rankings, and business outcomes
- A proactive communication about anything significant — algorithm updates, ranking changes, new opportunities
If your current SEO provider cannot account for their monthly activity in these terms, the engagement deserves a serious conversation.
What SEO Companies Do Not Do
Equally important is understanding what falls outside the typical scope of SEO services, even when provided by a full-service agency:
- Paid advertising — Google Ads, social media advertising, and other paid channels are separate disciplines from organic SEO
- Social media management — while social signals have some indirect relationship with SEO, managing your social media presence is typically a separate service
- Website design and development — SEO companies will identify technical recommendations but typically rely on your development team or a separate agency for implementation
- Conversion rate optimisation — improving what happens after a visitor arrives on your site is a related but distinct discipline, though some full-service agencies offer it
Understanding these boundaries helps you ensure you have the right partners in place for every aspect of your digital presence.
The Bottom Line
A good SEO company is doing considerably more than you can see in a monthly report. Behind every ranking improvement is a combination of technical work, content strategy, link acquisition, and ongoing analysis — all working together to build your website’s visibility and authority over time.
The best way to understand what your SEO company is doing is to ask them — specifically, in plain language — what was done last month, why it was prioritised, and what it is expected to achieve. A professional agency will welcome that question and answer it clearly.
If they cannot, that is your answer too.
Want to understand exactly what our team would do for your website from day one? Request a free discovery call — we will walk you through our process in plain language.