SDA and SIL are related — participants often need both. But in Google's eyes, they are completely different topics with different searchers, different search terms, and different content needs.
If your website puts SDA and SIL on the same page, you're almost certainly ranking for neither. Here's why — and how to address it.
Who searches for SDA vs who searches for SIL
This is the key difference that most NDIS providers miss. SDA and SIL serve different searchers with different information needs.
SIL searches — who's looking
SDA searches — who's looking
How the search terms are different
SIL keywords — Perth
SDA keywords — Perth
These keyword lists have almost no overlap. Someone searching "SIL vacancy Joondalup" is not the same searcher as someone searching "SDA high physical support Perth." A single page targeting both will rank for neither because it's not the most relevant result for either search.
The solution: separate pages for SDA and SIL
Every Perth NDIS provider offering both SDA and SIL should have:
A dedicated SIL page — covering your SIL homes, current vacancies, locations, and how to make a referral. Target SIL keywords exclusively on this page.
A dedicated SDA page — covering your SDA properties, design categories (Improved Liveability, Fully Accessible, High Physical Support, Robust), current availability, and eligibility information. Target SDA keywords exclusively on this page.
If you also have suburb-specific vacancies for either type, create suburb pages for each. A page titled "SDA Housing Joondalup Perth" has a much stronger chance of ranking for that search than a general SDA page that lists all suburbs together.
What to include on your SDA page that differs from SIL
SDA searches often come from participants or families who are still researching eligibility, not just looking for available properties. Your SDA page should address: what SDA is, who is eligible, the different design categories you offer, and how to explore whether someone's NDIS plan includes SDA funding.
This informational content is what earns you rankings for the research-phase searches — people who are earlier in their journey than the "SIL vacancy Balga" searcher. Both types of searcher are valuable and both deserve a page built around their needs.
Quick check: Does your website have a separate URL for SDA and a separate URL for SIL? If they're on the same page — or if one of them is just a section on your general Services page — that's the first thing to address for improved search visibility across both.
Want separate SDA and SIL pages
built and optimised for Perth?
Book a free 15-minute audit and we'll review your current site structure, show you exactly what to separate, and map out the suburb keywords to target for each service type.
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