Tag Info

Hot answers tagged

6

I assume you're referencing Blogger (blogger.com)? Referer spam has been a problem on Blogger and other blogging sites for a very long time. Unfortunately there isn't an effective way to block it because it's very difficult to distinguish legitimate referers from spammers. Editing your robots.txt file will not help because spammers often use fake ...


6

Akismet is free for personal use. It's from the makers of WordPress and will work with many platforms. There are libraries available for Python, PHP, ColdFusion, .Net, etc.


5

Here are 3 ways I have seen to do this: One way - http://stackoverflow.com/questions/8472/practical-non-image-based-captcha-approaches. Another way - http://stackoverflow.com/questions/2475806/captcha-replacement Msft has even made a one with Ajax! http://www.asp.net/AJAX/AjaxControlToolkit/Samples/NoBot/NoBot.aspx In general there are 3 "ways" to solve ...


4

a solution to that is to render the email information encoded, and a javascript function decode them and show them after the page have been load. Nothing hard to code and deocode, a simple one can do the work. Other way is to render your email to an image and show the image. With any trick like that the spammers can not easy read your email to place it on ...


4

To block all "blank" User-Agents or User-Agents consisting of a hyphen, you could use the following in your .htaccess RewriteCond %{HTTP_USER_AGENT} ^-?$ RewriteRule ^ - [F]


4

SPAM reasons, Yes. Google no. There are non-Google spiders that look specifically for email addresses, presumably for SPAM purposes. So over the years people have tried to find ways to make email addresses less "visible" to spam crawlers. A very common way is to display name (at) domain (dot) com with a script behind it to allow the link to work as an ...


3

No, that is not true. Email address obfuscation is the result of webmasters attempting to make their email addresses unrecognizable to spambot crawlers. Spammers employ bots that crawl the Internet looking for email addresses to harvest so they can send spam to them. By changing the @ symbol into (at) the webmaster is hoping that the spambots will not ...


3

I do not see any big problem but Spamassassin is giving three hints on how to make the email look better: you get 2.5 points for having an image and only a few words. Remove the image or increase the text length you get 1.1 points for your formatting. Your Email is not correct HTML (e.g., is missing the <html> tag you get 1.2 points because you are ...


2

Have you actually got in touch with Spamhaus? They might do white listing on an IP by IP basis. The other option is to change your ISP to one not hosted on a a range that's blacklisted. Edit Have you tried this: http://www.spamhaus.org/sbl/sbl.lasso?query=SBL80808#removal Edit 2 To be completely honest, if you're THAT desperate to get off the spamhaus ...


2

www.greatfirewallofchina.org is a tool built just for this. Here and here are other tools with similar functionality.


1

It is possible that some sites that link to you may run regular checks on their outbound links to make sure that they still work; if you block them there is a chance their script will see your link as dead and remove it, hurting your SEO. It is also possible that smaller search engines may use 'the cloud' to gather data, and blocking them would hurt your ...


1

I have also found myself in this position and wanted to give you my feedback: I've spent hours researching and refining my ip tables to get the best of both worlds, but in reality it's not possible to have any real accuracy and I have decided to take the scraping hit but allow full access to AWS. Like you have stated, AWS is a very popular platform for ...


1

Since you already had your emailaddress publicly available on the website it's already too late. You can still remove the plain-text email address from the website. There are several techniques for this, e.g.: 'Ofuscate' the address: E.g. info at example dot com or inforemovethis@example.com Use an image which contains the emailaddress Remove the mailto: ...


1

You can block them using htaccess by putting something like this in the htaccess file in your root Wordpress directory: Order Deny,Allow Deny from 178.238.232.234


1

Do you have a cache like e.g. Varnish running? Or another proxy software. Then this would be a reason why you have many requests from 127.0.0.1. I would not block them just like this. You seem to have other problems on your server. Check if someone hacked your server and does now make local requests.


1

It is not too difficult to roll your own basic CAPTCHA, or there are numerous tutorials and scripts out of the web. I've used a simple one in PHP based on random letters/numbers, feel free to take and modify for your purpose: // first generate random $string $pa_captcha_salt = 'random stuff'; $hash = md5( $string.$pa_captcha_salt ); $filename = ...


1

For solutions like this, if you're using an existing content management system, always seek best-of-breed solutions for your specific tool. The plus is that usually these tools are straightforward to install and test and if they don't work, try others out. If I were in your shoes and would check out Mollom. Here's a description: Mollom provides a one ...


1

I've heard of people putting fields in forms and then hiding them behind an image or div. Then when the form is submitted, if that 'hidden' field is filed out then they know it was filed out by a bot and not a human. Obviously this method has drawbacks (particularly for the visually impaired) and I can't say I've ever implemented it myself.


1

I'd recommend looking at the third party solution that is disqus. It provides spam protection, moderation, and supports logins of openid, facebook, twitter, and their own disqus accounts.



Only top voted, non community-wiki answers of a minimum length are eligible