A hacker group reportedly affiliated with the Islamic State who promised to take down the search engine giant Google. Instead, they affected a small search optimization tech firm from India. First it was said that a US-based company’s site was affected, but later it was an Indian based site.

Cyber Caliphate Army (CCA), a hacking group planned to hack Google on Monday. But their target was missed and hit www.addgoogleonline.com registered by Gandani K for Indian tech firm. It offers search engine optimization (SEO) services to local clients.

According to vocative.com website, CCA had vowed on messaging app Telegram that they would attack Google on Monday. “We promised to hack Google. Keep the promise inshallah (God willing), expect us today,” the group declared.

The hackers got to know that they defaced the website www.addgoogleonline.com, which is completely unrelated to Google. After it was hacked, the website played an Islamic State (IS) song in French and displaced the official logo along with a sign saying “Hacked By: CCA”.

The CCA’s “defacement of the website” was short-lived as yet another hacker group called “n3far1ous” wiped out the IS message and replaced it with an “Eat this, ISIS” message and a rock tune playing in the background.

The CCA allegedly hacked into 35 British websites, which appear to be a random mix of relatively small British businesses, media reports said. IS hackers allegedly said that the attacks were “A message to David Cameron” as revenge for the killing of British Muslim terrorist Junaid Hussain, who was killed in a US-led air strike last year.

Last week another group of hackers pledging allegiance to IS threatened Facebook CEO Mark Zuckerberg and Twitter CEO Jack Dorsey, in retaliation for the efforts, the two companies are taking to shut down pro-IS commenter’s on their services.