Unwanted activity/content that is usually of a promotional nature.

learn more… | top users | synonyms

60
votes
26answers
4k views

Way to list “Contact Us” email address on web site, yet reduce likelihood of spam?

What's a good way to list a "Contact Us" email address on a web site, while reducing the likelihood it will get spammed? Is putting the email address in an image the best technique, or are there ...
34
votes
4answers
9k views

How do spambots work?

I have a forum that's getting hit a lot by forum spambots, and of course the best way to defeat something is to know thy enemy. I'll worry about defeating those spambots later, but right now I'd like ...
28
votes
10answers
33k views

How can I prevent my mail from being classified as spam?

My company sometimes send mail, but it usually goes to "spam" folder in gmail. The email includes only a few sentences, without any links or images. Just plain text. How can I fix this? (Notice that I ...
23
votes
3answers
5k views

How can I prevent spam on sites which I control?

This is a general, community wiki question to address all non-specific spam prevention questions. If your question was closed as a duplicate of this question and you feel that the information ...
20
votes
4answers
8k views

How to avoid Hotmail/Live rejections for (legit) large volume eMailing?

While qualifying eMail for Spam, Hotmail/Live checks the historical records of numbers of eMails sent by a sender (FROM, eMail Server, IP, etc.). Some times, perfectly valid bulk eMails that are not ...
13
votes
5answers
20k views

How to send mass email and not get treated as spam

I have a very important announcement to send the more than 300k members of my website. I already have email sending software but they result in spam. So I want to improve my chances of reaching my ...
13
votes
4answers
2k views

Is Email list “cleaning” a legitimate practice?

A client has provided us with an excel spreadsheet of around 10,000 email addresses, names and addresses. They were taken from a CRM used previously. I've been asked to "clean" up this database - ...
13
votes
4answers
241 views

Prevent possible spammer from linking to my site

We own a website which, through google search results, we determined is either being linked to improperly or for spam purposes by another completely random source. They recently registered a domain ...
12
votes
4answers
2k views

Blocking referral traffic

I am currently getting a massive amount of referral traffic to my site (Spam), that can sometime generate 1-2 GB worth of traffic per a day (which kinda sucks, when you have a 10GB limit from the ...
10
votes
7answers
3k views

Mass deletion of spam revisions in Mediawiki

Basically my 'private' mediawiki instance was about as secure as a toddlers piggybank. I've tightened it up now, but am left with about a hundred or so new pages and revisions generated by hundreds of ...
10
votes
4answers
194 views

Emailing all site users

I'm going to be emailing all of my site users to update them on recent developments and remind them to come back to the site. Are there any special precautions I should take. I was going to do this ...
10
votes
2answers
351 views

How to deal with overly aggressive “Link Take Down Demands”?

I've been receiving a large number of emails recently requesting I clean from link spam from my forum. Initially the emails were very polite and professional, and I was happy to remove the links. ...
10
votes
5answers
251 views

baffling comment spam

I've been seeing some odd comment spam on one of my sites. Odd because there are no links posted. Just, "Wow, that's a really celevr way of thinking about it!" or similar. Note the typo. The messages ...
8
votes
4answers
5k views

Spam bot constantly hitting our site 800-1,000 times a day. Causing loss in sales

For the past 5 months our site has been receiving hits from these 4 sites below; sheratonbd.com newsheraton.com newsheration.com newsheratonltd.com Typically the exact url they come from looks ...
8
votes
3answers
2k views

Prevent spam using Honey Pots

I am really curious about how to prevent comment spam in a forum using a honey pot trap for spam bots. What if CSS and javascript is turned off in a browser? Do you see any other disadvantages in ...
7
votes
5answers
3k views

Safe way to send thousands of promotional emails

My new partner has an email list with over 1 Million email addresses for targeted traffic (no spam... only genuine subscribers from his last startup ) But now I have a problem.. how can I sent an ...
7
votes
1answer
8k views

How can I find out if my domain has been added to email blacklists?

We do a lot of mass emailing of our contacts to promote events, send out newsletters, etc. Some people read and react, some people unsubscribe, but I fear that some might actually mark the email as ...
7
votes
5answers
614 views

Better Spam Protection than reCAPTCHA?

I hope this is a valid question to ask here... but knows anyone a better spam protection than reCAPTCHA? We've now using reCAPTCHA for some time but got now the situation that obviously more and more ...
7
votes
3answers
200 views

Free spam blocker service [duplicate]

Possible Duplicate: How can I prevent spam on sites which I control? Is it possible to get a free and good spam blocker for your website? I would really like to avoid having to serve ...
7
votes
1answer
164 views

Can I get google to ban a spamming site from Adsense ?

I've noticed a "site" that stole some of my content and they are displaying google ads. Not responding to my email. I'm quite certain that most of their content is stolen, either from other sites or ...
7
votes
1answer
129 views

Anywhere to get a list of referrer spammers?

I do my own log processing using my own self-written analyzer. That means I have to deal with the continual nuisance of referrer spammers. Is there anywhere I can get an up-to-date list of referrer ...
6
votes
3answers
520 views

Comment spammer IP list?

Is there a public list anywhere on the web of IP addresses that have been identified as comment spammers?
6
votes
1answer
133 views

What kind of spam is this?

I realize this is a pretty vague question, but I occasionally get spam messages through my contact form on a Drupal 6 site. The contact form does not have any anti-spam protection (i.e. math ...
6
votes
2answers
793 views

Why do some user agents have spam urls in them (and why are they always Opera/Presto User-Agents)?

If you go to (say) the last 100 entries (visits) to the botsvsbrowsers.com website (exact link, feel free to take a look: http://www.botsvsbrowsers.com/recent/listings/index.html ), you'd notice that ...
6
votes
4answers
238 views

Is it positive or negative for the average website to allow search engines to index user comments?

I've been trying to answer this question myself by researching and searching on google but I haven't been able to come with a final answer. I have some hypothesis I would like share anyway: The ...
5
votes
3answers
218 views

What do big websites do about spam emails to the support department?

My website's support email address is starting to get a lot of spam emails to it, what do big companies do about this?
5
votes
1answer
131 views

Best way to protect yourself against “almost manual” spam

(Maybe this is not the correct stack exchange site, please redirect me if so). We have a Trac instance here and are getting the following spam text (I replaced dots and dashes in the URLs by ...
5
votes
2answers
8k views

Getting a lot of postmaster undeliverable notices for non-existent users

I've had my domain (straightpathsql.com) for a few years now. I host my e-mail with Google Accounts for business and have for awhile. ALl of the sudden in the past week I am starting to get a lot of ...
5
votes
3answers
937 views

How to tell whether spammers are bots or humans?

How can you tell if the people that are spamming your forum or website are in fact bots or human spammers? Please note that the question is not about preventing spammers. It is to determine if the ...
5
votes
3answers
121 views

Stopping comment spam with links(need suggestion) [duplicate]

Possible Duplicate: How can I prevent comment spam on sites which I control? After bearing 1 year spammy comments with links in those in my 10 sites, finally I've disallowed comment posting ...
5
votes
1answer
77 views

Are press release distribution services spam services?

I'm not trying to label this website as a spam service, but use it as an example to enquire about: http://www.prweb.com/ And there are many like it. I've been considering using their services as ...
5
votes
1answer
146 views

Website visitors with same PHP session ID, same cookies, but different IPs and user agents, all within one second. What are they and how to stop them?

We've noticed an unusual and growing pattern in visits to our website. When a user visits, we set a PHP session ID, set cookies, and record the user agent and ip. What we've seen happening a lot ...
5
votes
3answers
2k views

My domain emails are marked as SPAM in Gmail? How to solve this issue?

At Pro Webmasters I searched for an issue which relates to spammed domain list for sending emails which end up in the Spam box in Gmail. I found the link something like below: ...
4
votes
3answers
549 views

How spam comment affect my blog and website rank?

I have already read many articles on how I can detect spam comments and prevent spamming. But still I'm not satisfying with it, I just want to know how a spam comment can affect my blog and website ...
4
votes
3answers
210 views

Robots signing up on website

A couple of days ago, some robots started to sign up on the website (about 30 in a couple of days), they don't do anything on the website (as I'm guessing they don't find what they're looking for). ...
4
votes
2answers
522 views

Reporting paid links to google - does it work?

I am noticing that my competitors have a boat load of paid backlinks, which don't seem to be discredited from google (PR is intact, rather then 0) Problem is, those sites aren't any gambling or ...
4
votes
3answers
345 views

Bingbot requests from Google IP address

We have some suspicious requests to our server, 74.125.186.46 - - [24/Aug/2014:23:24:11 -0500] "GET <url> HTTP/1.1" 200 16912 "-" "Mozilla/5.0 (compatible; bingbot/2.0; ...
4
votes
2answers
538 views

My website's email is being marked as spam, how do I analyse a X-CNFS-Analysis email header?

My website is sending out email that RackSpace email is marking as spam. I'm trying to figure out why the email is being marked as spam and what I can do about it. The most interesting header that ...
4
votes
2answers
104 views

Scraped content from my website posted on Blogspot is outranking my site and causing Google penalty

I noticed that starting from October the organic traffic is very low on my website. I searched on Google for some text phrases from my website and I noticed that there is a Blogspot website, a blog ...
4
votes
3answers
639 views

Identical spam coming from many different (but similar) IP addresses

A forum I run has been the victim of spam user accounts recently - several accounts that have been registered and the profile fill with advertising/links. All of this is for the same company, or group ...
4
votes
1answer
648 views

How do I deal with content scrapers? [duplicate]

Possible Duplicate: How to protect SHTML pages from crawlers/spiders/scrapers? My Heroku (Bamboo) app has been getting a bunch of hits from a scraper identifying itself as GSLFBot. Googling ...
4
votes
2answers
4k views

Website falsely blocked because of spam. Does anyone know how we should proceed?

I'm responsible for ICT at FOS Open Scouting, a belgian scouting organisation. Our website was hacked a few years back and blocked by Facebook as a result. After we regained control over the site ...
4
votes
1answer
99 views

Gif image in newsletter and the risk of spam

I am wondering if you find it risky to use a moving gif image in a newsletter. We have a mail list about 700k of people and the percentage of Outlook is still high. In a test we did the newsletter ...
4
votes
1answer
395 views

Possible automated Bing Ads fraud?

I run a website that generates life insurance leads. The site is very simple a) there is a form for capturing the user's details, life insurance requirements etc b) A quote comparison feature We ...
4
votes
1answer
94 views

What kind of spam is this on our form?

We're receiving a lot of spam that looks like this: Form field 1 (textfields): duYYAJPNaMVsC Form field 2: icDiQOVRy Form field 3: uSDzPEObWIrTsCidma Form field 4: ODscxPiiqj ...
3
votes
3answers
227 views

How to get less visits to my website?

I've read that a huge percentage of traffic comes from bots - legit bots like search engine spiders and illegitimate bots like spammers and ones looking for vulnerabilities. I'm about to launch my ...
3
votes
5answers
2k views

We've had our content copied under a different URL - why and what do we do?

We have a problem. We've noticed a large amount of traffic showing up on our Google Analytics. Upon further investigation we have found that we've had our content copied under a different URL. Our ...
3
votes
2answers
106 views

Why do spammers use CELESTRON NEXTAR 6SE?

I am running a website for a volunteer organization that hosts an annual event. There is a form where people can volunteer to bring items for the event. All too frequently I get spam from users ...
3
votes
3answers
1k views

Tons of spam on phpBB even with recapcha enabled [duplicate]

Possible Duplicate: How can I prevent spam on sites which I control? I am running a phpBB forum where the requirements were that users shouldn't have to sign up in order to post. They ...
3
votes
1answer
166 views

Can email harvesters extract addresses from PDFs?

Our website does some basic obfuscation (foo at example dot org) for email addresses on web pages visible to the general public, but doesn't do so for PDF documents. Is it common for email harvesters ...