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Questions tagged [spam]

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

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70
votes
27answers
5k 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 ...
43
votes
4answers
20k 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 ...
43
votes
7answers
12k views

How to fight off Google Analytics referrer spammers?

Last months I have lots of referrer spammers in my GA statistics. Their count is ~10x higher than count of legit visitors (my site is not very popular yet). I've turned on an option to hide known ...
41
votes
9answers
65k views

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

When sending or forwarding emails using a personal or company domain using a website or email client, how do I prevent the email from being incorrectly marked as spam?
27
votes
4answers
14k 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 ...
23
votes
4answers
15k 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 ...
16
votes
5answers
46k 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 ...
15
votes
7answers
6k 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 ...
14
votes
1answer
25k 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 ...
13
votes
3answers
13k views

Block social-buttons.com / simple-share-buttons.com Referral Spam

How to remove social-buttons.com / simple-share-buttons.com this type of lots of Referral Spam link they increase 100% bounce rate How to remove this type of referral spam link in via .htaccess or ...
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
259 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
2answers
427 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. ...
12
votes
4answers
3k 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 ...
11
votes
4answers
207 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 ...
11
votes
5answers
269 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
8k 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
2answers
12k views

How to get whitelisted in microsoft's email network?

I have been trying for the last couple of weeks to get whitelisted in the Microsoft's email network. I can send emails from my site to gmail and yahoo with no problem. They are delivered to the right ...
8
votes
2answers
611 views

Does it really help against spam to replace the “@” with “(at)” and similar practices?

When e-mail addresses are mentioned on the web, I see a lot of: send (dot) me (at) spam (dot) com send . me (a) spam . com etc. Does it really help againt spambots finding the addresses to do these ...
8
votes
1answer
2k views

What is the purpose of spam registration bots?

I have been intrigued by this for a while, and haven't been able to find a solution elsewhere, so I was wondering if anyone here knew the answer: Since I have set up my personal website, I have ...
8
votes
1answer
198 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 ...
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 ...
8
votes
1answer
184 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 ...
8
votes
1answer
156 views

Why is spam added to the Bing cache of my landing page?

Please search on Bing "url:testrails.org" and open the cached page. Bing shows random other pages below the content of my own landing page. This is so weird! This is what I found out so far: I have ...
7
votes
5answers
5k views

How to send thousands of promotional emails to opt in addresses without being blocked

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
5answers
705 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
228 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 CAPTCHAs to ...
7
votes
3answers
145 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 ...
7
votes
5answers
266 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 ...
7
votes
2answers
1k views

Fake organic traffic from baidu to one particular page

Recently I started to have spikes in organic traffic coming from baidu to one particular page of my site. First of all, my site has a Chinese version and I do need visitors from China. So I don't ...
6
votes
4answers
734 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
142 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 question)....
6
votes
2answers
2k 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
1answer
147 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 </>...
6
votes
3answers
6k views

What is forum20.smailik.org referral traffic?

In my Google Analytics real-time I now see a lot of visitors with referrer forum20.smailik.org This link redirects to http://www.aliexpress.com/ What does this traffic mean? (And should I block it?)
6
votes
1answer
229 views

Where are these spammy posts generated from?

While doing a a random Google search, I realized that my WordPress blog is populated with several spammy posts. Ex: (intentionally delinked) http://example.com/2016/02/06/free-download-wallpaper-...
5
votes
5answers
30k views

How to avoid getting spam through a website?

We seem to be getting A LOT of email spam, we have a combination of the email addresses as mailto links and contact forms that send to the same address. What measures can we put in place that will ...
5
votes
3answers
251 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
3answers
2k 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 ...
5
votes
1answer
521 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 ...
5
votes
6answers
3k 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 ...
5
votes
2answers
10k 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
2k 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
1answer
5k views

why does google request apple-app-site-association from every domain on the server?

I received the following in my log: [Mon Oct 05 11:04:35 2015] [error] [client 66.249.75.xxx] File does not exist: /path/to/user/public_html/apple-app-site-association xxx in the log is a number ...
5
votes
2answers
8k 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 ...
5
votes
3answers
9k views

Reduce likelihood of Mailchimp email campaign going to Spam

The company I work for sends a marketing email at least one time per week using Mailchimp's email service. All of our subscribers are opt-in active customers and our emails are not spammy. There is ...
5
votes
2answers
2k views

Grapeshot crawler ignoring robots.txt

Has anyone come across a crawler called Grapeshot? They are hammering the same page repeatedly on our website. I believe they are looking for ad related keywords, based on previous content ad ...
5
votes
3answers
140 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 with ...
5
votes
1answer
81 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
2answers
6k 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 ...