Criteo brings personalized retargeting to the ultimate level.
Criteo is headquartered in Palo Alto, USA since September 09 and is the largest retargeting company in Europe.

Criteo is registered at:

• ARIN authority for AS19750.

• RIPE authority for AS44788.

• LACNIC authority for AS53031.

• APNIC authority for AS55569.

We are an American, European and Asian content provider. Criteo deploys and maintains a large-scale IP network in US, Europe and Asia.

Criteo operates an Anycast network in Europe and in the USA. For technical reasons, we will have to deaggregate full prefixes into several smaller prefixes. We will never announce lower than Class C network (/24). We know how important it is to try keeping prefixes as full aggregated as possible, but running an Anycast Network shall break this rule.

Criteo Corp (AS19750) and Criteo SA (AS44788) have a selective peering policy. Applicants must meet each of the following pre-qualifications:

• The candidate shall be a public or privately held company officially registered in its home country's trade and/or industry authority.

• The candidate's network should justify a certain amount of traffic with AS19750 or AS44788 either originated from its own network (peer-as) or from the networks taking transit from it (origin-as). The minimum acceptable amount of traffic remains at the discretion of Criteo's network authority and will be evaluated on a case-by-case basis.

• The candidate's Network Operation Centre (NOC) must be reachable either by e-mail or phone 24/7/365. Thus the candidate has to provide any operational contact to Criteo and advertise Criteo of any change in the contacts' details.

This policy is only a guideline. Meeting all requirements does not guarantee that Criteo will accept to peer with the Appliant. Exceptions may also be granted at the sole discretion of Criteo.

AS19750 is available at the following Internet eXchange points:

• NYIIX, New York, USA : 1 x Gigabit Ethernet

• PAIX, Palo Alto, USA : 1 x Gigabit Ethernet

• Telx, New York, USA : 1 x Gigabit Ethernet

AS44788 is available at the following Internet eXchange points:

• AMS-IX, Amsterdam : 1 x Gigabit Ethernet

• DE-CIX, Frankfurt : 1 x Gigabit Ethernet

• Equinix-Paris IX, France : 1 x Gigabit Ethernet

• France-IX, France : 1 x Gigabit Ethernet

• LINX, United Kingdom : 1 x Gigabit Ethernet

Criteo also accepts to establish PNI with other networks when both Criteo's network and the candidate's network are co-located at the same housing facility or when both networks agree to share circuit's costs if they are not in the same facility, but in the same city. Physical media available to privately interconnect with Criteo are:

• 1000BaseTX Gigabit Ethernet.

• 1000BaseSX Gigabit Ethernet, multi mode fibre.

• 1000BaseLX Gigabit Ethernet, single mode fibre.

• 1000BaseZX Gigabit Ethernet, single mode fibre.

The housing facility where to establish the PNI shall be discussed directly with the candidate.

Upon establishing either a PPI or PNI, the candidate SHALL:

• Advertise fully aggregated prefixes (or must to able to explain why prefixes are deaggregated).

• Advertise at least prefixes for registered route (either at ARIN, RIPE or IRR) with candidate's network AS number as origin.

• Advertise its transit customers either for the region(s) where is (are) the PPI(s) or PNI(s) established if agreed so or worldwide if not specified.

• Accept all the prefixes sent by Criteo. Those prefixes are the registered routes object at the ARIN, RIPE NCC & APNIC databases originated by any AS number declared as member of the AS-CRITEO-USA and AS-CRITEO-EU AS-Set.

• Accept and route traffic sent by Criteo to the final destinations for each prefix advertised. No black-holing is allowed.

• Have its routing policy filled at ARIN, RIPE or IRR.

• In case of multiple PPI or PNI, send the traffic to the interconnection Criteo has chosen, or to the closest exit if not specified ("hot potatoes" routing).

The candidate shall NOT:

• Set a default route to Criteo's network or set a route to Criteo's network to a destination not being a part of the prefixes advertised by Criteo.

• Advertise or re-advertise prefixes originated from AS(es) the candidate's network learned from its own peerings.

Criteo MAY:

• Shutdown the peering if invalid prefixes are advertised by the candidate's network to Criteo.

• Shutdown the peering if packet-loss or abnormal round-trip time delays are observed.

• Shutdown the peering in case of BGP session flap.

• Shutdown the peering if the traffic amount is bellow the agreed level with the candidate upon PPI or PNI opening.

• Ask the candidate to establish another PPI or PNI if the amount of traffic is superior to a certain level.

• Shutdown the peering for a limited amount of time to perform maintenance or upgrades with its peering routers.

• Send traffic to the candidate's network to the closest exit ("hot potatoes" routing).

If the candidate meets the prerequisites stated early in this document or think Criteo should establish a PPI or PNI even if he does not, then please send your peering request by e-mail at:

If your peering policy requires Criteo to sign a peering agreement, please attach it to your peering request in order our legal department to be able to review it.