Preventing unwanted content from being posted on a website.

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24
votes
3answers
7k 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 ...
15
votes
8answers
430 views

Effective captcha solutions [duplicate]

Possible Duplicate: How can I prevent spam on sites which I control? ReCaptcha is all the rage at the moment, Based on customer/user feedback, what other captcha or general human ...
10
votes
2answers
592 views

Forum Spam Question. Why are Chinese hackers posting tiny images on my forum

My forum is getting attacked by spammers with Chinese IP's. Replies are created to discussion topics, always short responses and along with the response an image is inserted using forum code which is ...
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 ...
6
votes
3answers
483 views

When using email as login name, what precautions should I take for registration?

When your registration form is using a user ID that is the same as their email address, I'm somewhat concerned over spammers using the "User name is in use" as a means to validate the existence of an ...
6
votes
1answer
282 views

How to ban registrations from TOR exits?

I am getting far too many fake registrations through TOR exits. I would like to block these registrations like major sites do. What is the proper way to do that?
5
votes
3answers
221 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
1k 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
123 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
2answers
294 views

How to protect a form from spam? [duplicate]

I have compiled a list of items that may protect a web form from span. Which are actually effective? Please feel free to add additional items. Store a code as a hidden field and verify it when ...
5
votes
3answers
3k 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
250 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
3k 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 ...
4
votes
3answers
310 views

Site being repeatedly hacked: any useful tips for tracking down entry point?

I'm suffering from a spam hack where my site periodically starts to show Viagra spam to Google and other spiders. The method of the hack is basically that my .htaccess file gets modified to route all ...
3
votes
2answers
107 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
519 views

How to remove spam links from google?

My wordpress website got the pharma attack. Now there are lots of spam links on my website indexed by the Google. Is there possiblilty to remove these links from the Google using robots.txt file or ...
3
votes
1answer
4k views

Gmail is marking my emails as SPAM - Please help [duplicate]

Possible Duplicate: How could I prevent my mail from being recognized as spam? gmail is marking my emails as SPAM I used the great service: isNOTspam.com to check my email against spam I ...
3
votes
1answer
95 views

Strategy to prevent spammers from taking advantage of “Invite by email” feature?

We are developing a web application, and we would like to make it very easy and effective for our users to invite their friends, family and colleagues to view and interact with their content on the ...
3
votes
4answers
2k views

Sending HTML to Gmail always lands in Spam

I am having an issue with sending HTML emails to Gmail. I can send them to Yahoo, Hotmail, RR, AOL, etc. with no problem at all, but when I send them to Gmail I get kicked to spam. I have checked ...
3
votes
1answer
576 views

Can randomly-generated field names help avoid SPAM bots?

If I were to generate my field names randomly each time a contact form was rendered, would that help prevent SPAM bots from recognizing the fields? Can they read label text?
3
votes
1answer
72 views

How to batch remove spamming users and pages they created on MediaWiki?

I'm trying to clean up a MediaWiki instance which has been subjected to spamming and vandalism for a period of time. The current status is that there are a large number of users which only created ...
3
votes
4answers
574 views

Silverstripe: How can I disable comments?

My client site is built in Silverstripe, there is a news page, and it allows people to leave comments. Unfortunately we've got loads of spam emails. I'm new to this, is there any way we can disable ...
2
votes
2answers
222 views

How does Google prevent GA accounts from being spammed [closed]

Since the Google Analytics snippet is available in the source code of the page (e.g. below is stackexchange's) <script type="text/javascript">var ...
2
votes
2answers
115 views

Dealing with spam by blocking URLs?

I run a giant community. Many spammers will use link shorteners or .tk domains that 301 to their spam offer. How are sites detecting the final domain and is this a viable solution to block spam? ex. ...
2
votes
1answer
74 views

How can I protect my website if services like 2Captcha claim to crack the new reCAPTCHA?

Have recently seen their ad where they claim to be able to do it due to the fact that unlike most OCR CAPTCHA crackers which are bots, they use workforce, humans behind the scenes. Although I still ...
2
votes
2answers
755 views

How can I reduce the number of spammers registering with my phpBB site?

I have a site which runs phpBB, on this site I have enabled user authentication through email when registering enabled captcha However I still get spam users every 20 to 30 minutes. Is there ...
2
votes
1answer
124 views

Spam being sent from my domain

I have a suspicion that somebody is sending spam from my domain. Today I received an email from postmaster(AT)halliburton.com to htuwxjw(AT)example.com which said: The following email was blocked ...
2
votes
2answers
2k views

Gmail is marking my emails as SPAM. However, ISnotSPAM marks it as not-spam

I'm sending an email through my application code. The email gets into my Gmail spam folder. However, a test of the same email in ISnotSPAM is marked as non-spam. My application is using Sendgrid to ...
2
votes
1answer
97 views

Spam prevention through IP tracking

I am building a website with user generated comments. In order to implement user moderation/spam-protection, users have the ability to mark comments as spam. When one comment is marked as spam, I want ...
2
votes
2answers
768 views

Has anybody earned $0.25+ from each of a captcha (on your website) passing?

I am a real dummy in web monetizing schemes. [ 1 ] informs that a captcha vendor: "charges a fee of about 25 cents to 50 cents for each form that is filled out using a Type-In ad [captcha]... ...
2
votes
1answer
43 views

Why is a contact form getting spammed even after adding captcha?

A client was getting a lot of spam from a form on their site. I added Captcha and changed the form fields and form recipient email address, but the client is still receiving spam from the server, with ...
2
votes
2answers
116 views

Spambots looking for phpmyadmin and more

I inherited a couple of sites that send the webmaster an email with each 404 error. I get a smattering of errors each day, but there are times when I'll get dozens, even hundreds, of errors from these ...
2
votes
2answers
467 views

phpbb banning multiple users by username/email

On phpbb, we usually select many user names and put it in the ban list. This is fine. but here's my key question: Are these banned users banned by their user names only OR emails OR both? If they're ...
1
vote
5answers
683 views

How to prevent common spam on a WordPress blog [duplicate]

Right from the day I installed WordPress on my site, I started getting spam comments/trackbacks. I have also prevented anonymous comments. I get the following email whenever a new spam is posted: ...
1
vote
3answers
80 views

Use @ or (at) when displaying email addresses to users?

I have was wondering if it is better to use @ or at in contact page when I'm displaying emails. I've seen in many websites that when they display a email, it looks like name(at)example.com but it ...
1
vote
3answers
135 views

How to implement an unspammable email address

Providing info email or contact email in plain text helps spammer (robots) to extract the email using regex or any technique, currently I provided an image like this: But this method has usability ...
1
vote
4answers
3k views

Best lightweight PHP/MySQL forum with spam-protection [duplicate]

Possible Duplicate: What Forum Software should I use? I have already searched and checked out posts like this and this but it isn't what I'm looking for. I'm looking for a lightweight ...
1
vote
5answers
11k 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 ...
1
vote
2answers
112 views

Is it okay to block all user agents that start with “PHP/5.”?

I'm getting a lot of spambots from China (and elsewhere, likely botnets) accessing my blog which have a user agent string starting with PHP/5.. These include such nonsense values as PHP/5.3.70 and ...
1
vote
4answers
204 views

Recommended Spam Best Practices [duplicate]

Possible Duplicate: How can I prevent spam on sites which I control? Are there any recommended admin tools or interfaces for reviewing and moderating spam on a community-driven UGC site?
1
vote
3answers
216 views

mailto link is a spam flag, what is the simplest way to explain this to business person

Do you agree that it is generally bad practice to include mail to links and emails in websites because of spam and the various malicious agents that search and use emails? If so how could I explain ...
1
vote
3answers
362 views

Is this really GoogleBot, or is this a spammer?

I found this IP in my access log posting repeatedly thousands of times. Is this really GoogleBot, or is it a spammer? I hesitate to block it. 185.62.188.98 - - [13/May/2015:18:54:33 -0400] "POST ...
1
vote
3answers
94 views

Spam site re-proxying my site, how do I stop this?

So there's some guy out there duplicating my http://bitlucid.com website in some nonstandard way and for some nefarious reasons. I first found out about it when I saw a "copy" spam url in the logs ...
1
vote
1answer
67 views

What techniques can I use to block human generated spam posts?

I'm having trouble blocking paid posters trying to post links to products unrelated to "fashion" on my site. I've made my links nofollow but they're still being posted. What techniques can I use to ...
1
vote
3answers
105 views

How can I scan a HTML website for malicious links/scripts?

I designed a website using a free HTML templates. Up until now I used to trust the free templates I found online... Recently, one of these websites has received a lot of visits from Russia in a way ...
1
vote
1answer
68 views

How to report spam sent through my website contact form without blocking it? [duplicate]

Despite the Google captcha protection I receive some spam from my website contact forms. I want to report these spams but without blocking my contact form address. Explaination: when somebody send ...
1
vote
3answers
42 views

Should we date our e-mail addresses

I have a website I'm administering for a volunteer organization that has a big staff turn over (annually - the team working in 2014 is almost completely different from the team for 2013 as the team ...
1
vote
1answer
144 views

Publicly displayed e-mail address: Is it safe from spam-bots when dynamically generated?

I am currently in the process of making myself an employment website; the entire site uses a client-side rendering engine to dynamically load views. Because of this, the source of the page returns ...
1
vote
3answers
504 views

Best way to block “comment spam” postings to web forms? [duplicate]

Possible Duplicate: Make your site anti-bot? I have a custom web form on my PHP-based site. Recently it is getting a regular stream of comment-spam postings from a few specific IP ...
1
vote
2answers
2k views

Is it possible to block traffic originating from a specific country?

My personal website is currently getting a lot of spam comments at the moment, and most of them originate from Russia (I've used Google Analytics to identify the traffic, and a lot of the links link ...