What search engine marketing covers
Search engine marketing, usually shortened to SEM, is paid advertising on search engine results. You bid on the words and phrases buyers type, and your ad appears above or beside the organic results when the search matches. In Singapore that means Google for almost every business; Microsoft Bing adds a smaller audience that skews to desktop and business users.
Some people use "search engine marketing" to mean paid and organic search together. In practice, agencies and finance teams use it for the paid side, and SEO for the organic side. The two share keyword research and landing pages, so they work best planned together.
Search, Shopping and Performance Max
| Campaign type | What it does | Best for |
|---|---|---|
| Search | Text ads on the results page, bought keyword by keyword | Services, B2B and any business where the buyer searches the problem |
| Shopping | Product listings with image and price, fed from your product catalogue | E-commerce stores with a clean product feed |
| Performance Max | One campaign across Search, Shopping, YouTube, Display, Gmail and Maps, run by Google's automation | Accounts with enough conversion data for the automation to learn |
Most Singapore accounts start with Search, add Shopping if they sell products online, and test Performance Max once conversion tracking is reliable. Performance Max reports less detail about where ads ran, so it suits teams that judge results on sales or qualified leads rather than placements.
What an agency runs, and what stays with your team
- The agency runs keyword research, account structure, ad copy, bidding, negative keywords, conversion tracking, landing-page testing and weekly optimisation.
- Your team owns the account itself (in your company's name, with your billing), the offer, the lead or sales follow-up, and the decision on what a good enquiry is worth.
- Shared: the monthly review of results against the target, and what to test next.
The single most common failure is a disconnect between the ads and the follow-up: the account produces leads, but nobody records which ones became customers, so bidding optimises for cheap enquiries rather than good ones. Feeding CRM outcomes back to Google through offline conversion import or enhanced conversions fixes this.
For Singapore businesses that follow up leads by phone or WhatsApp, the follow-up also has to respect the Do Not Call Registry; check numbers with the PDPA and DNC checker before calling.
What a board report on SEM should show
- Cost per qualified lead or per order, measured against your own CRM or sales data, not the platform's figure alone.
- Return on ad spend on revenue you can see in your own systems.
- Search impression share on your core terms: how often your ad showed when it could have, and how much was lost to budget or rank.
- Tracking coverage: the share of conversions recorded through enhanced conversions or server-side tracking.
- What changed and what is next: the tests run that month and the plan for the following one.
To work out the most you can pay per lead at your close rate, use the Singapore cost per lead calculator; for budget planning, the Google Ads cost calculator for Singapore.
Results from two Singapore Google Ads programmes
| Client | Result | Period |
|---|---|---|
| Manulife Financial Advisers | Google search impression share on core wealth terms 94.2%; search ad click-through rate 4.1% → 8.9% | January–August 2026 |
| Camtech Health | Google Ads Quality Score 6.1 → 8.9; cost per order SGD 78.50 → SGD 36.80 (−53%) | January–August 2026 |
See how we run it on our search engine marketing service in Singapore and Google Ads management in Singapore, and our work with large brands in Singapore.