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Searchpedia SEO field notes Callum Bennett Callum

Paid & organic

SEO SEM Strategy

I used to treat SEO and SEM as separate. Now I combine them: buy immediate traffic with paid ads, build durable assets with organic, and use each to inform the other.

Beginner3 min readUpdated 2026-07-27Notes by Callum Bennett

Start here

  • Map your keywords by search intent using a tool like Ahrefs to separate informational, commercial, and transactional queries.
  • Use SEM to test high-intent queries for two weeks before committing to long-form organic content on the same topics.
  • Create separate landing pages for each intent group: blog posts for informational, comparison pages for commercial, product pages for transactional.
  • Monitor paid search query reports weekly to find new keyword opportunities that you can target organically.
  • Allocate budget based on campaign lifecycle: spend 80% on SEM for the first three months of a new launch, then shift towards SEO as content compounds.

Plain-English take

I used to treat SEO and SEM as separate disciplines, managed by different teams with separate budgets. That approach wasted money. Now I see them as [two levers on the same search results page](/seo-and-ppc-integration/). SEO builds an asset that compounds over months: a well-optimised article can bring thousands of visitors a year without ongoing cost. SEM buys immediate visibility for the queries that matter right now. For example, when I launched a new software product, I ran Google Ads for "project management tool comparison" on day one, while simultaneously publishing guides for "how to organise remote teams". Within a week I had traffic from ads; six months later the organic posts overtook the paid clicks. The decision rule is simple: if it takes months to rank for a term, and you need traffic today, buy it. If the query has low commercial intent but high volume, write the article. The mistake most people make is [choosing one channel](/seo-vs-sem/) because they think it is cheaper. They ignore that SEO has an upfront production cost too. A combined strategy uses SEM to validate keyword demand and SEO to capture it at scale.

When it actually matters

This approach matters most in three situations. First, when you launch a new product or site. You have zero organic authority. Your domain is brand new and Google will sandbox it for weeks or months. In that period, SEM is your only way to get indexed pages in front of searchers. I recommend spending 80% of your search budget on paid during the first three months, then gradually shifting toward SEO as content accumulates. Second, [in competitive markets](/seo-vs-ppc/) where established sites dominate organic results. If the first page is full of large brands, you cannot outrank them quickly. Paid ads let you bypass that queue. But watch your cost-per-click: if it exceeds the lifetime value of a customer, the strategy breaks. In that case, focus on long-tail queries through SEO instead. Third, for [seasonal campaigns](/how-seo-and-adwords-work-together/) such as Black Friday or Christmas. SEM gives you precise control over when and where your ads show. You can turn them off the day after the sale ends, without wasting money on evergreen organic content that would go stale. The edge case is local businesses. For example, a plumber might get organic traffic from "emergency plumber near me" within weeks if they optimise Google Business Profile properly. SEM for local can be unnecessary if local SEO works fast enough. Always test: run a small paid campaign for two weeks and see if organic performance improves or if you can afford to wait.

What I got wrong

I made two specific mistakes. First, I assumed SEM meant only Google Ads text ads. I ignored [shopping ads](/pla-seo/), remarketing, call-only ads, and local service ads. That cost me opportunities. For an e-commerce client, I ran text ads for "leather wallet" but never set up a Shopping campaign. When I finally did, the conversion rate was three times higher because users saw product images directly. Now I consider all Google Ads campaign types under SEM. The second mistake: I used the same [landing page for every keyword](/cro-seo-sem/). I would send "best CRM for small business" and "enterprise CRM pricing" both to the homepage. Unsurprisingly, neither converted well. I now create intent-specific landing pages. For informational queries, I use blog posts with a soft CTA. For commercial queries, I use comparison pages. For transactional, a product page with clear buy buttons. I also use SEM to test which headline or offer resonates fastest, then [repurpose that language into SEO content](/ppc-and-seo-working-together/). For instance, I ran two ad variants for a landing page. The winner's headline became the H1 of the organic article. That article now ranks on page one and earns clicks without ad spend. I should have done that years ago.

Next step

Quick answers

Should I allocate more budget to SEO or SEM for a new website?

For a new website, allocate most of your budget to SEM initially, because you need traffic to validate demand and start earning trust signals. I would put 80% on paid for the first three months, then gradually shift to SEO as pages get indexed and start ranking. By month six you can reverse the split.

Can running paid ads hurt my organic rankings?

Running paid ads does not directly hurt organic rankings. However, if you use the exact same landing page for both and cannibalise clicks, you might see no net gain. More importantly, if your SEM campaign drives high bounce rates, that behaviour could indicate a relevance problem that also affects organic performance. Keep landing pages intent-specific.

How do I know which keywords to target with paid vs. organic?

Start with your paid search query report. Run a small campaign with broad match and see which queries get the most clicks and conversions. Those high-intent queries are prime for SEO targeting. For informational queries with low search volume but high ad cost, write blog posts. For high volume commercial terms, use SEM first while SEO catches up.

Sources

Primary documentation is linked directly. Anything commercial is marked nofollow.

  • Google Search Central — Canonical guidance on how Google Search works and SEO basics.
  • Google Ads Help — Official documentation for paid-search concepts, campaign structure, and ad relevance.
  • Ahrefs Blog — Practitioner-friendly explanation of SEO vs. SEM and common integration patterns.
  • TechTarget — Definitional distinction between organic SEO and paid SEM in modern usage.
  • American Marketing Association — High-level marketing framing of how the channels complement each other.

Notes from Callum Bennett.