SEM

SEM, search engine marketing, is marketing through search engines. In most usage today it means paid results bought in Google Ads or Microsoft Advertising. In older usage it meant both paid and organic together.

If a report says SEM, check the scope. Does it include SEO, or only ads? On a small site you need that clarity to budget and to judge results.

Paid results are sold by auction on the query and billed per click. They appear at the top and bottom of the page, marked Sponsored. They stop the moment the budget stops.

You bid on keywords and write ads. A search like "invoice software" can show your ad and send the click to /pricing or a purpose-built landing page. The same query can also show your rival and a mix of organic results.

The platform matches more than exact words. It uses match types and intent. Keep your query report tight. Add negatives like "free" or "definition" when you sell paid plans, so you do not pay for poor fits.

A product often runs paid search to learn which queries convert, then earns those organically. Use ads to test message, landing layout and which terms drive signups and revenue. Keep the winners as SEO targets.

Example: you test "invoice software", "recurring billing", and "invoice template". Clicks on "invoice template" bounce on /pricing, but a guide at /guides/invoice-template converts trials. You then build that guide, link it from the header, and target the same term in SEO.

Over time SEO should carry the evergreen terms. Keep ads for high intent terms where you lack rankings, for competitor names you may not rank on, and for timed pushes like launches or seasonal offers.

• Clicks and cost per click: confirm you are paying what you expect for the query class.
• Click through rate: low CTR often means a weak ad or the wrong match type. Fix the copy, the headline and the path shown.
• Conversion rate on the landing page: wire this to signup, trial start or purchase, not just pageviews.
• Cost per acquisition and payback: do not scale spend without knowing the unit economics.
• Search terms report: read the actual queries, keep adding negatives, and split out poor performers into their own tests.

In Search Console, track the organic side of the same queries. Watch impressions rise on the terms you prove with ads. When the organic click through and conversions catch up, taper spend there first.

• Counting brand clicks as a win: separate branded and non branded campaigns. Your brand usually would have clicked you anyway.
• Broad match with no guardrails: start tighter. Use phrase or exact, add negatives weekly, and only widen once you see clean conversions.
• Sending all traffic to /pricing: build specific pages. A "compare" ad should land on /compare/rival, not a generic page.
• Stopping all ads the moment organic ranks appear: overlap for a period. Hold the ad on key terms while you confirm revenue from organic.
• Chasing vanity metrics: impressions and average position on ads do not pay the bills. Optimise to revenue signals.
• Assuming SEM includes SEO in every report: label your dashboards. Keep paid and organic lines separate, then show the combined view when it helps planning.