Geolocation discrepancies

General
1

Hi,
I’m attempting to use Geolocation and have installed a VCL from this page:

When I run the solution from that page, I get my correct location returned:

client-geo-city: feltham
client-geo-continent: EU
client-geo-country: GB
client-geo-latitude: 51.450
client-geo-longitude: -0.410
edge-geo-datacenter: CHI
fastly-client-ip: 2a02:c7c:6783:ca00:d857:7b1f:ed89:65b3

I have installed that on my Fastly service, and visiting the site that uses that service, I get the following results returned when I visit from the same laptop and location:

client-geo-city: dalwhinnie
client-geo-continent: EU
client-geo-country: GB
client-geo-latitude: 56.940
client-geo-longitude: -4.250
edge-geo-datacenter: LCY
fastly-client-ip: 149.241.150.24

Any idea why this might be?

Thanks for any help!

Cheers,
Dan

2

Hi Dan,

Thanks for reaching out on the forum.

It might be that the Fastly service you’ve created is doing a GeoIP lookup with a different IP (e.g. IPv6 vs IPv4) due to how requests are proxied through to https://fiddle.fastly.dev/ (which is what runs the demos from the Developer Hub) and that might yield different results.

If this is a concern or you would like more information, then I would recommend emailing support@fastly.com as they’ll be able to reach out to the relevant team to investigate and to provide a more definitive answer for you.

Thanks!

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