458 hits on the same image gif today by this IP address: 68.178.4.202 which is in the Integra Telecom network in Oregon:
OrgName: Integra Telecom, Inc.
OrgID: ITCM
Address: 1201 NE Lloyd
Address: Suite 500
City: Portland
StateProv: OR
PostalCode: 97232
Country: US
ReferralServer: rwhois://whois.integraonline.com:43
NetRange: 68.178.0.0 - 68.178.127.255
Not sure why we get so much strange traffic from the Integra Telecom network.