Assertive Media
Technical SEO Consultancy
At Assertive we offer professional technical SEO consultancy for clients who are looking for specific support relating to on-site / technical SEO. Our team of specialist in-house tech SEOs have extensive experience in diagnosing, auditing & fixing issues relating to a websites technical SEO compliance.
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What We Offer
Specialist SEO consulting services for clients who require it. We offer a full SEO auditing service along with tech SEO specific analysis, diagnostics, fixes & implementation. We offer flexible, ad-hoc technical SEO support on an hour by hour basis or we can provide retained, flexible monthly retainers.
We help clients with all aspects of their websites health & build ensuring that search engines like Google as well as LLMS can access content, can index content & are able to properly crawl, fetch & render.
From websites with core web vitals issues through to websites built in Javascript we can provide dedicated (specific) SEO support or we can provide blanket, wider technical SEO consulting support for businesses.
Client Testimonial
We've been working with Assertive on our SEO & AI SEO Strategy, we're very pleased with the results, the team are fantastic & very helpful
We've been working with Assertive on our SEO + our AI SEO / GEO strategy for a while now. The team have been very knowledgable and supportive.
We had our first wholesale bulk order through chatGPT which is one of the largest orders we've had to date, we're getting more customers telling us they found us in chatGPT searches, so very pleased.
Appletons Wholesale
Verified client
Some of Our Clients
What Is Technical SEO & Why It Matters?
Technical SEO is the process of evaluating a websites on-page SEO & build to assess whether or not search engines & bots/crawlers can properly crawl, render & access pages on your website and content on your pages.
It matters significantly, poorly built websites or websites littered with technical issues can suffer from inability to rank, ranking losses or may miss out on being included in LLMs / AI search.
Poor technical compliance can also impact user experience & content accessibility which can impact not just organic search but other marketing channels also.
How Much It Costs?
We price by the hour, we typically charge £150-£200 per hour for technical SEO. We offer a reduced rate on rolling retainers for fixed hours.
Ready to brief us on your project?
We respond within 1–2 working hours.
Why Choose Us?
Unlike other agencies, we have our own proprietary software (SEO Stack) https://www.seo-stack.io which allows us to use big data + AI to assess true impact from implemented fixes post audit. We don't just crawl your website & send you a PDF dump of data we prepare fully fledged reports with prioritisation, impact weighting, ease of implementation / technical debt assessments - that are actionable, easy to understand and drive maximum impact.
Main reasons we're chosen:
- Extensive experience delivering technical SEO consulting for medium to large enterprise businesses including Lenovo, BNP Paribas, Virgin, Supreme PLC
- Our internal SEO specialists have a minimum of 10 years real-world experience
- Our SEO agency has been established since 2007
- Exceptional knowledge coverage across website infrastructures, servers, hosting, tech stacks, JS, PWAs, SPAs, react shells, rendering, large eCom sites, PDPs, variables
- Award winning
- We practice what we preach
- We don't use automations in this space nor do we use generic tools such as SEMRUSH or AHREFS to dump out recommendations
- Experienced working with Screaming Frog SEO Spider, Lumar (Deepcrawl), JetOctopus, Sitebulb
What the Technical SEO Consulting Can Be Used For
Flexible consulting means we can work around your business needs. Whether you are a large organisation that requires additional technical SEO support or perhaps you need an external SEO's eyes to evaluate technical compliance, technical states or to evaluate where there may be persisting technical issues impacting rankings - we can help.
Technical SEO Auditing
Our in-house SEO specialists deal with technical SEO issues day in day out for every type of website, CMS/tech stack across all different niches. We can provide specialists tech seo audits that pick apart a website, build, compliance to generate a list of fixes in priority order with an evaluation of potential benefit and potential technical debt (how hard it is likely to be to fix).
Our technical SEO auditing typically covers:
- Ranking issues or losses as a result of poor technical SEO compliance
- Ranking issues or losses because of poor indexing due to issues relating to crawlability, rendering and general indexability
- Full website crawls to evaluate everything from internal links through to HTTP status codes
- Diagnostics of page builds & rendering i.e. CSR (client side rendering) vs SSR (server side rendering)
- Diagnostics of indexability (robots, meta robots, canonicals, URL consistency, HTTP status handling)
- Diagnostics of website integrity (internal links, page accessibility, anchor text, NON WWW vs WWW handling, HTTPS)
- Diagnostics of on page elements (titles, meta, headers, H1s, in-page text accessibility, JS driven events, buttons, text loading)
- Diagnostics of performance (core web vitals, INP, CLS, FCP, LCP, Render Blocking etc)
- Indexing issue diagnostics relating to technical SEO (DOM analysis, Javascript, Headless Analysis, CMS controls)
- Handling of crawl budget i.e. managing Googlebot, LLMS & other user agents and what they can crawl
Website Tech Stack Changes
If you are planning a website tech stack change i.e. migration from PHP to Javascript or you are changing from a typical CMS to a custom website build i.e Wordpress to Vercel we can help support your business or in-house teams or external/internal developers.
We regularly support businesses who are about to change their websites - in many cases, we provide full technical SEO consulting to ensure migrations are done properly and to minimise potential for ranking / traffic losses, indexing issues and more.
We commonly deal with:
- Pre migration tech stack reviews, recommendations and guidance
- Pre migration website technical SEO audits
- Recommendations for migration (pre-action)
- Strategic guidance and best practice for developers
- Staging site technical auditing
- Pre go live SEO assessments (old site to new site change)
- Redirect map building
- Google change of address requests
- Crawlability & indexability check
- Pre-migration index clean ups
Website CMS Changes
We often provide specialist technical SEO consulting for businesses who are moving or intending to move to another CMS. We regularly provide technical SEO support for businesses who are migrating from one CMS to another - typical migrations include:
We deal with all CMS platforms, not just Wordpress or Shopify, we deal with Ghost, Webflow, Squarespace, Wix and more! We typically provide technical SEO auditing and strategies both pre-migration and post migration to ensure migrations go smoothly and as trouble free / risk free as possible.
- Wordpress to Shopify
- Wordpress to Webflow
- Wordpress to NextJS/React
- Shopify to Wordpress
- Magento to Wordpress
- Magento to Shopify
- Webflow to Wordpress
Real client results
Case Studies
Lenovo EMEA
One of the world's largest computer manufacturers Assertive supports search across EMEA markets.
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BNP Paribas Cardif
International insurance group Warranty Direct programme growth via SEO.
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Pharmacy Online
Online dispensary for prescription & over-the-counter medications.
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SCI-MX Nutrition
One of the UK's leading sports nutrition & protein supplement retailers.
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Audley Travel
Tailor-made luxury travel bespoke itineraries crafted by destination specialists.
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Emma Sleep
Award-winning sleep products mattresses, pillows and bedding.
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Orangeries UK
Bespoke orangeries design, manufacture and installation across the UK.
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Justerinis & Brooks
Fine wine & spirits merchant one of the world's oldest, established 1749.
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Craft Irish Whiskey
Ultra-luxury, super-premium Irish whiskey crafted in small batches.
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Sykes Dream Cottages
Dorset's largest holiday cottage agency with 300+ properties.
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Large Mortgage Loans
UK leader in High Net Worth mortgages finance for larger property purchases.
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SQS
Global IT service management & infrastructure software organisation.
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Website Crawl Evaluation
For clients looking for technical SEO consultancy for confirmation or for the purpose of external validation we can help. We provide clients with website crawls and either top level surface assessments of technical SEO compliance or more detailed technical audits as mentioned above. We can perform crawl evaluation to cover things such as:
- Checks for website crawlability
- Checks for meta data, OG data, titles, description and CTR
- Checks for internal / external linking integrity, anchors and consistency
- Checks for HEAD elements (canonicals, HREFLANG, meta, directives)
- Checks for rendering (HTML, DOM Analysis, Lighthouse, Agentic UCP)
- Checks for accessibility (resources, responsiveness, page elements, LLM access)
- AI Search Readiness (LLM text output, page retrievability, LLMS.txt/Robots.txt)
Our Process & Methodology
The process we offer is straightforward, we ask for you to get in contact / submit a proposal request for technical SEO support. The process is typically:
- We'll review your enquiry & your needs - please provide an overview of what you are looking for support with
- We'll provide you with a quote for seo consultancy / support based on what we think you need
- If you accept the quote, we send you an invoice, a rolling agreement and we allocate a member of our SEO team
- We'll begin the work - typically we'll agree an engagement medium such as SLACK, Team or we can join any project management tools or platforms you use i.e. Jira, Notion, Monday, Asana, Clickup
- Our SEO specialists then begin the work - working alongside you or independently to provide the required deliverables
- We typically support internal SEO teams where additional support is needed, external dev agencies who may be working on or managing your website, and businesses directly - we can deal with heads of marketing
FAQs
Frequently Asked Questions
Does my website need technical SEO?
Yes, its important for maximising search engines & LLMS (large language models) such as chatGPT, Gemini, Claude, Perplexity, Grok, Copilot so that they can find & fetch your content properly. Tech compliance can have a significant impact on organic performance & user experience, therefore, websites do need to be complying to stand a better chance of being visible online.
How long until I see results from technical SEO?
Results can take anything from a few weeks to months, it really depends on your websites current organic performance & to what degree it's impacted by technical issues. Websites that have good underlying foundations are likely to rely more on other factors whereas websites that have lost rank to structural or indexability / rendering issues are likely to see results much quicker - typically within a few weeks.
What do you need from me to start / what's in a technical SEO brief?
An overview of your domain and any issues or challenges you've faced, we can do the rest. We'll assess your website, how it performs for what it offers, we can then begin the phase of evaluating what needs doing.
How do I choose the right technical SEO agency?
The best seo agencies to choose are ones who can clearly demonstrate understanding & depth of what technical SEO is, what it involves & how to find, fix & evaluate issues in a way that offers maximum benefit to the client, end users & search engines.
How much does technical SEO cost?
Pricing can vary significantly depending on your site, niche, site size & complexity of issues. In the UK on average: Freelance SEO consultants can charge anywhere from £50 to £250 per hour, Small SEO agencies can typically charge around £100-£150 per hour, Medium to Large SEO agencies can charge from £150-£300 per hour.
Typically retainers can run between £3k-£5k a month for SEO which covers tech seo.
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