- Most comparison sites earn commission when you sign up through them, which can influence which deals are shown and ranked.
- They generally list providers they have commercial arrangements with, so smaller altnets and direct-only deals can be absent.
- Ofcom operates an accreditation scheme for price-comparison tools that meet accuracy and transparency standards.
- Use comparison sites to scan the market, then check your address directly with providers and any local altnet.
Comparison sites are the default starting point for buying broadband, and they are genuinely useful, but they are not neutral. They are businesses earning commission, and that shapes what you see. Knowing how they work, and what they leave out, lets you use them for what they are good at without being misled by what they hide.
How they make money
Most comparison sites earn a commission when you click through and sign up to a deal. That is a legitimate model, but it means the site has a financial interest in the deals it shows and how prominently. Providers that pay commission appear; the ranking you see is not necessarily a pure best-value order, and "featured" or "sponsored" placements may reflect commercial arrangements rather than merit.
What gets left out
Because listings depend on commercial arrangements, deals and providers without one can be invisible. Smaller altnets, community networks and some direct-only or retailer-exclusive deals frequently do not appear on mainstream comparison sites at all. If you rely solely on one comparison site, you may never see a faster or cheaper option that genuinely serves your street.
The Ofcom accreditation scheme
Ofcom runs an accreditation scheme for price-comparison tools that meet standards for accuracy, transparency and comprehensiveness. An accredited tool gives more confidence that the comparison is fair and clearly presented. Looking for accreditation is a useful way to judge whether a comparison site meets a recognised standard.
Revenue model versus your interest
| Feature | What it means for you |
|---|---|
| Commission-based listings | Shown deals may favour paying providers |
| Featured / sponsored slots | Prominence may be paid, not merit |
| Missing altnets | Local faster options may be hidden |
| Ofcom accreditation | A mark of accuracy and transparency |
How to use them well
Treat comparison sites as a way to scan the mainstream market quickly, then verify independently. Check your exact address on the providers' own sites, look up any altnet operating in your street separately, and prefer Ofcom-accredited tools. Used this way, comparison sites are a helpful first step rather than the last word on the best deal for you.
Frequently asked questions
Do broadband comparison sites show all providers?
No. They generally list providers they have a commercial arrangement with, so smaller altnets, community networks and some direct-only or retailer-exclusive deals can be absent. Relying on a single comparison site may hide a faster or cheaper option that serves your street.
How do comparison sites make money?
Most earn a commission when you click through and sign up to a deal. That is a legitimate model, but it gives the site a financial interest in which deals it shows and how prominently, so rankings are not necessarily a pure best-value order.
Are broadband comparison sites biased?
They are commercially motivated rather than neutral, since listings and prominence can reflect commission and sponsored placements. They are still useful for scanning the market, but you should verify independently and look for Ofcom accreditation as a mark of fairness.
What do comparison sites not show?
Often smaller altnets, community broadband and direct-only or retailer-exclusive deals that lack a commercial arrangement with the site. They may also not reflect the best price a provider's retention team would offer an existing customer.
Is there an independent broadband comparison tool?
Ofcom operates an accreditation scheme for price-comparison tools that meet standards for accuracy, transparency and comprehensiveness. Choosing an Ofcom-accredited comparison tool gives more confidence that the comparison is fair and clearly presented.
