Why are there websites in my browser history that I’ve never been to?

Occasionally sites will appear in your browser history that you never visited. I'll examine some possible causes.

I periodically clean my browser history, but after a while website entries begin to appear in it that I’ve never actually been to. Some of these sites look quite disturbing, and are not sites that I would ever go to. Why would these entries appear? Do I have spyware or a virus?

This is a question I get relatively often, and it’s usually nothing to worry about.

Certainly viruses or spyware are a possibility. Of late I’d also call out “Foistware” – the software that often appears on your system unexpectedly after installing something else.

However there are also more benign scenarios. It’s possible your browser may simply be doing a good job protecting you.

Spyware and Foistware

Spyware often works by forcing your browser to go to places you would never go. Foistware in particular often adds toolbars and other software to your system that intercepts what you’re doing and just rudely takes over, sending you to bogus search sites or worse.

These days my first recommendation when you run into unexpected history entries is to make sure your machine has no unexpected malware. In particular I’d have you run the tools outlined in How do I remove PUPs, foistware, drive-bys, toolbars, and other annoying things I never wanted?

Traditional pop-ups

Many websites employ pop ups – additional browser windows that open up when you visit the site. These typically contain ads for which the site owner is  getting paid.

Browser HistoryPop up blockers were created to prevent pop up windows from happening. Using different techniques, the blockers intercept the requests to create new browser windows and prevent them. Most modern browsers include pop up blocking technology of some sort.

Pop up blockers insert themselves into the normal processing of web requests, and “kick in” when they detect that a pop up window is being requested. Exactly where depends on the specific blocker and how it operates. It actually gets fairly complicated, since there are so many different ways to create a pop up window. That’s why some blockers are more effective than others.

My theory is simply this: a URL that’s been requested to open in a pop up window may actually get added to your history before the pop up blocker kills it. You’ve never seen it, but it’s there in the list.

One page, multiple sources

History entries certainly don’t have to be created by pop ups alone.

Some pages on the web that look like a single page are, in fact, a composite of more than one page or page fragment. What you see as being a single URL may in fact, have fetched content from several different sites.

Depending on how your browser handles these requests, it’s possible that these sub-pages or page elements could also show up as individual entries in your history. You wouldn’t recognize them, because they’re not pages that you explicitly went to, but they’re present because they were part of some page that you did visit.

Ultimately, unless someone else is using your computer when you’re not looking, I believe that this is typically a very benign occurrence.

However that shouldn’t stop you from taking the appropriate precautions to keep your computer safe.

This is an update to an article originally posted : April 17, 2006


  1. Randy

    There’s one major possibility you didn’t address, Leo: just because he doesn’t go to “those” kinds of sites doesn’t mean other’s don’t, if others use his computer. Indeed, does he have teens in the house? They could be doing things and going places on his computer that he wouldn’t approve of….

  2. Marvin

    After searching for an hour online I finally found this clear explanation of why stuff is appearing in my history when I have never been to these sites. Most of them are porn! I’m glad my pop up blocker is working and I’m not going crazy! Every site online is telling me I’m looking at this stuff when I’m not!

  3. Tiffany

    A similar thing has happend to me..I found a bunch of stuff in my web history that I didn’t go to. They were all from the same site and in 2 different web history that I have. Porn of course..is this still possible that it is spyware?

  4. banefulpurity

    So my husband goes on websites like flikr and too shocking and I have found some stuff in the History – but it’s hard for me to get mad when i’m unsure if he’s actually going on these sites.
    How can i tell? is there a tool for this?

    • Tom Dees

      You should stop going to that website …..I would simply block it. I have helped several friends clean their machine after visiting that particular site.

  5. Samantha Dolton

    This happens quite often to my families cpu also. The culprit in our case is angieslist and craigslist!!!ugh

  6. BillV

    I’ve observed the converse, i.e. that some sites that I’ve been to don’t get added to the history. The includes some Ebay pages but the really obvious one is Google. At one time the pages associated with all my Google searches were added to the history. This doesn’t happen any more. Is there an option that I don’t know about that has been switched?

  7. tamzin lewis

    so in my partners phone browser history was a mobidateing…..more than once apparantly browser history rekons the site was visited there was no difference between that link and the other sites he visited ie, colour and of course he denies this and im currently pregnant and find this very upsetting can anyone help and shed some light on this please!!

    • bob galvin

      I just had a horrible experience. My girlfriend went through the browser history on my phone and found an entry for Yahoo login. I don’t have yahoo, and never logged into Yahoo. I honestly have no idea why it’s on my history, and it has ruined my relationship.

  8. Sanjoy Kr Bandyopadhyay

    Browser history shows the sites visited from other PC & other person. What the reason may be?

    • Connie Delaney

      If you are signed into Chrome on those various computers it will sync the browsing and history. And also a good lesson that if you are asking a question about a computer it’s essential to include some information about the system and programs you are using.

  9. joyann

    So my husbands computer history keeps showing that he is visiting some girls page on Facebook. He’s not friends with her on his page and says he doesn’t know her. He denys it adamantly and I want be believe him, but something just doesn’t add up. A guy he knows that works on computers said it could be a bot. What do you suggest?

  10. S. Marrow

    Months ago I confronted my husband about the many dating sites I found he was on and wanted to know if he was only looking or actually having physical affairs. I love him and wanted to save our marriage. He has been dishonest a lot in the past so I have randomly checked to see if he has really stopped the sites. On his Droid Razor Mobile phone’s google chrome history it appears he joined a Matrimonial Dating site for Muslims (he is one) and there are what look like searches of some of the profiles and chats. He said he didn’t. He doesn’t know how I know the info. Could it be via pop-ups? I have little computer knowlege. I do know his phone is highly protected from malware etc. How do I know if these searches mean he is lieing to me again…if so, he is probably taking a secret second wife. I am a Christian, refusing to convert to Islam. He has been angry about this for a long time. My contact with the outside world is very limited. I have children to protect too. How concerned should I be?

    • Andrea

      I, my friend have had very similar experiences with my current husband for the past few years. However, after discovering on MeetMe.com that he actually was seeing some one else, I figured out different ways to check up on all the dating, porn and any other questionable sites to find out what he was up to. Unfortunate for me, I was horrified. First off, create an alternate e-mail account separate from your normal one, of course with a fictitious name. Do the same with the site in question (a lot won’t allow searches until you are a member). Of course only do this with those with free sign ups. Search for your husband’s name and see if he comes up. Be prepared though… things can get graphic and quite ugly. To be honest, mortifying. I’ve had to do this for several porn and dating sites, and even twitter, facebook, and more. We are currently in counseling for this as I confronted my husband on all of these matters. Luckily, my husband isn’t the violent type, so use discretion if you are to confront him. I don’t know your situation. Good luck and best wishes. I hope you prove your suspicions wrong.

      • shannon

        There is also a different way to see if he has accounts. Simply type in forgot password, you enter his email address and it will tell you if he has an account or not. I was unfortunate enough to realize the my boyfriend during a break to better himself was on a ton of them.

    • ray

      From a blokes point of view I’d most defiantly say he’s lying.
      But since it’s now 2015 you’ve probably figured that out by now.

  11. SMO

    I have websites and Google Searches on my internet history that I’ve never visited or searched for. It is on my Samsung Note 2 cell phone but doesn’t show up on my laptop. The sites are POF (a dating site), Putlocker (watch online movies), reddit, Yahoo – login (I don’t have a Yahoo login), Yahoo Mail (I don’t have a yahoo mail account), living social – Google Search, chat line – Google Search, chatroulette – Google Search, hook up – Google Search, Plenty of fish – Google Search, stubhub – Google Search. How can I prove that I did not perform these searches or access the websites? I have visited porn sites on my phone in the past and created a username/password for ashley madison (it’s been deleated/account closed). I also visited craigslist to read the postings from my phone. Any help would be awsome.

  12. allison tyler

    i noticed on my boyfriends history that 3 questions had been put into the computer, firstly bed and breakfasts in truro which is in cornwall near where i live then pubs in truro and shops in truro.he said he does not know anything about it and did not enter this into the computer. could it be an accident .how could it just appear .have you any idea please. yours miss a. tyler

  13. Nata

    Hello how are you , so I found pornographic websites in my husbands iPhone 5 history … Is it possible that he might not have viewed this pages .?? .. I read what U said about this situation in computers but now does this also happen on iPhones ?

  14. JJJ

    I’m having similar issues with my husbands iPhone showing up searches he claims he never made. My issue is that he claims he hit a link that was a spam porn site to try and unsubscribe, however, there was a search in actual the search bar for google, (for a specific fetish that I know he has), but my confusion is that if you hit a link from your email, won’t it direct you to that site with the web address showing up in the web address bar (sorry not sure what its called)? This showed up under http://www.google.com/search…blah blah blah, then it has the description of the search in the search bar, and that site is the only one highlighted (from what I assume being clicked on)? Am I crazy or is any of this possible? Please help. It’s destroying us!

  15. Hannah

    Anyone know if this happens also on windows phones? I’ve been finding random porn sites on my boyfriends phones along with dating sites he swears he’s never visited. he has been on porn sites in the past, and admitted to that however that was a while ago & swears he hasnt been on one since (about 5 months). Is it possible just from visiting these sites before that he’s still getting Pop ups & things are appearing in his history that he’s never visited? Trying to figure things out, it’s ruining my relationship.

  16. Stressed

    I have found numerous porn sites in my child’s browsing history for Google Chrome on his Samsung Note 3, is it possible for someone else’s browsing history to show in his history even though he was not signed into Chrome when these sites were visited? His excuse is that he may have been signed in at a friends place, however, this history shows while he was not signed in at all. Please help! Is this possible? I really don’t believe it’s any one of the reasons in the post as it’s the same site over and over. Please help.

  17. Whatisgoingon

    I have some lengthy history of porn sites that I have no been on. I went on it a few times, but now it shows some dating site called fuckbook.. I didn’t even know that was there until my husband looked through my phone. I have read a lot about this site spamming you, but wanted to know more about how this can happen and how to make it stop and haven’t been on anymore sites. he looked at a phone I don’t use anymore and it said I went to some pornsite the day he looked at the phone. not like you log in or anything so it is not possible. I am so confused and feel like a bad person for something I didn’t do. I really don’t have the energy to argue over something I didn’t even do nor would I ever go to a dating site and even if I was single woudnt go to one asking for sex. it is sick and I am sick my husband would think so low of me. Any help would be great.

  18. shannon

    How does xnxx show up in your search history in your browser on your I-phone if you claim to have never typed it in and when he says I don’t know how my browser history got deleted should I believe him? If you go to settings and click on safari and then advanced web history you can see everything. Even if you clear your browser it will still be there. Of course if private browsing this does not work. I am devastated to think that the man that promised me he was different from all the rest feels no guilt for doing this and can look me in the eyes and tell me he doesn’t and accuse me of planting it there so I can accuse him of it. I can’t let it go, it is eating away at me inside. He had me apologizing for doubting him but then it happens again.

  19. Ashley Righerson

    My husband and I have been having problems lately because he tells me he doesn’t use Twitter or ever go on it but I see that Twitter appeared on his website data under advanced data in safari’s settings. I don’t know why this is happening if he says he doesn’t go on?

    • Mark Jacobs

      Many sites have links to social media sites like Twitter and Facebook which that people can click to follow that site. Things like that can end up in the browsing history if they download an image from that site to display on the page.

  20. Nur

    hello all,i found some porn sites on my husbands i-mac , (in web history where you look up from privacy – history ) . He swears he has never been to those sites . He says it can be virus made this .Or the links he looked made that look like he entered to porn sites. He is using internet very much because he is so curious about everything about his job and all staff .. He says because of searching to much it may have happened. Do you think he is telling truth or just lying … im going crazy about this issue .. Pls help me ..

    • Connie

      Everything he says is possible. Those sites you see could be pop-ups from other sites he visited, he could have accidentally clicked on things while deleting out spam emails, someone else could have used his computer, he could have malware. You really need to use other criteria to decide if there is trust or not. Though I do have to wonder why you are snooping through his computer? Sounds like you should maybe be searching help from different venues.

      • nur

        i was looking because we had seen same kind of bad stuff in his iphone too …This is not something ethical in marriage so i have every right to know ..And also he is a jealous man and does that kind of things to me … anyway , he is using imac and ppl say there is no weay apple to get infected by a virüs ..so im so confused..i really need to learn the truth..Trust is everything,once its broken ,it will take years to be like old times ..and if ur pregnant . @connie and from 950 websites he entered there are 30 of them is porn sites…thats why its getting harder for me to believe …i need the truth from an apple user,apple technician..

  21. Sasha

    I found a website in my husbands history called “instabang” under 0.4 KB he swore over our kids that he did not download this app. I don’t usually catch him watching porn but this wouldn’t be the fist time I saw these kind of sites pop up? Is it just redirecting him to these sites because of something he downloaded? No one to talk to… Don’t want this to be the end of our marriage.

Leave a reply:

Before commenting please:

  • Read the article. Seriously. You'd be shocked at how many people make comments that prove they didn't.
  • Comment only on the article. If you have a new, unrelated question start with the search box at the top of the page.
  • Don't post personal information. Email addresses, phone numbers and such will be removed.

VERY IMPORTANT: because of a rise in comment spam that's making it through our filters any comments that do not add to the discussion - typically off topic or content-free comments - run a very high risk of being flagged as spam and removed.

If you have a new question unrelated to the article above, ask it on the Ask Leo! ask-a-question page.

Your email address will not be published. Required fields are marked *