An Internet Protocol address (IP address) is a numerical label assigned to each device in a computer network that uses the Internet Protocol for communication.

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16
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6answers
20k views

Is unique IP address a must for SSL?

The shared hosting company told me that if I buy an IP address then it will be applicable for the addon domains too. What does it mean? Then the SSL certificate won't work since there will be more ...
14
votes
6answers
2k views

Should a website be directly accessible by its IP address?

I found that many websites display their site content only when you access them by their FQDN (example, example.com). When trying to access by their IP address, they show a 404 site not found error. ...
8
votes
2answers
2k views

Would changing IP addresses affect my SEO

We're about to change our website from a shared hosting account to run on a VPS, mainly so we have our own resources and control over server settings. An IP address is included with the VPS. What I ...
8
votes
3answers
1k views

Shared IP vs. Dedicated IP

What are all the pros and cons of a dedicated IP rather than shared IP for my website? When would I need a dedicated IP?
7
votes
3answers
22k views

What does an asterisk/star in traceroute mean?

The below is a part of traceroute to my hosted server: 9 ae-2-2.ebr2.dallas1.level3.net (4.69.132.106) 19.433 ms 19.599 ms 19.275 ms 10 ae-72-72.csw2.dallas1.level3.net (4.69.151.141) 19.496 ...
6
votes
1answer
2k views

Hotmail and IP in blacklist - how to solve now?

Our server's IP address is blacklisted by the provider of hotmail. We can't find any solutions. We followed up with all the instructions they gave us in the DEAMON email link, but it's not enough - ...
6
votes
3answers
3k views

Should I redirect the site IP address to the domain name

I have been told by an SEO company to redirect the site IP to the domain using a 301 redirect. This will apparently improve the SEO ranking of the site. The site has a dedicated IP address. Is this ...
6
votes
1answer
224 views

Will Google and other search engines follow IP address only sites (i.e., no URL)

Will Google and other search engines follow links to and index sites that don't have a URL, but instead just use their IP address's (obviously they would need a unique IP) ?
5
votes
3answers
2k views

Can I make my IP address look as if it is from another country, not from the US?

The top level domain .md is works as follows: (A) If you are from the US, Canada, or a few other countries, you have to register .md domains through max.md for exorbitant prices, because they figure ...
5
votes
3answers
753 views

Disadvantages of a fake phpMyAdmin honeypot that causes ip blacklisting and robots.txt disallow/exclusion of the honeypot?

I'm trying to figure out whether I should set up a honeypot system with a fake phpMyAdmin (site gets hits all the time with people spidering for insecurities with that app). My thought was to create ...
5
votes
3answers
1k views

Multiple IP addresses to a server

I am trying to figure out the best option for web hosting of a startup business. I want to get a VPS hosting for this business and one factor that affects the price is the number of IP addresses. I ...
4
votes
4answers
1k views

How can I compile an IP address to country lookup database to make available for free?

How would I go about compiling an accurate database of IP addresses and their related countries to make available as an open source download for any web developer who wants to perform a geographic IP ...
4
votes
2answers
3k views

How to add multiple websites on a single IP address?

I have a VDS server and a dedicated IP address. The question is how to add multiple sites in a single domain? For example I have 3 sites as below: www.company.co www.webdesign.com www.inet.com ...
4
votes
2answers
518 views

Is collecting IP address and user agents on form submission illegal in the U.S.?

I'm creating a website where I collect the name, email, state, and an optional photo of a user. Before the user submits the form, they have to agree to the terms of the site. For testing and ...
4
votes
2answers
107 views

Geolocate service I can use?

I can access very accurate geolocate info from Google Analytics, but is there any way to access the geolocate information of Google or otherwise for an IP address, from a computer program, like a web ...
4
votes
1answer
265 views

Multiple IP addresses for one SSL certificate

Is it possible to register an SSL Certificate for Multiple IP addresses? This is needed for one of my sites; which runs on two different servers with different IP addresses. One server is live; while ...
4
votes
1answer
146 views

Using a custom domain: How to update an A-record?

Tumblr makes it seem relatively easy to use a custom domain name. For a two-level domain: point A-record (IP address) to 66.6.44.4 But my registrar (Domain.com), doesn't make this intuitive, as ...
4
votes
2answers
134 views

Download tracking by IP

Is it possible to track downloads from a website by IP address? Ideally, I would like to see a log file with possibly time stamps, occurrences, and who (IP address, and/or country of origin). If ...
4
votes
3answers
529 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
4answers
20k views

Why am I getting cgi-sys/defaultwebpage.cgi coming up when I browse my webpage?

I've recently set up a website with a smaller hosting company. The plan has a dedicated IP. They sent me emails to say it's all set up, but now their support channels are all unresponsive even though ...
4
votes
2answers
483 views

Trigger IP ban based on request of given file?

I run a website where "x.php" was known to have vulnerabilities. The vulnerability has been fixed and I don't have "x.php" on my site anymore. As such with major public vulnerabilities, it seems ...
4
votes
1answer
249 views

Single IP multiple servers

I have seen that some IPs are tied to multiple servers (physical machines). Example: check the ping times of one of GoDaddy's nameservers: ...
4
votes
3answers
535 views

How can I see who is connecting to my websites on my server and possibly their IPs ?

1) How can I know how many people is connected to the server in a specific moment (or previous hours of the day). (Even in real-time) 2) How can I know which one of the websites on my server they are ...
3
votes
2answers
323 views

The same user from different IP-addresses?

Has anybody encountered the situation when the same user from the same session ID and the same browser requested 2 different scripts on the same webserver inside the duration of 30 sec from two ...
3
votes
1answer
183 views

Why are the same two web pages appearing on the first page of Google's SERP?

While searching in google.co.in for the keyword term "USA Boxing News", I found the same two web pages are showing on the first page of results. One result shows the IP address of the website, and the ...
3
votes
4answers
16k views

How can I change the location of my ip address to specific citiies/places when browsing?

I am based in Europe and I would like to test my website as if I am located in New York. I have some specific features that will be visible based on cities.
3
votes
1answer
89 views

Can I detect the IP address and location of visitors to my web application who are behind a proxy?

I'm writing a web application and I need to make sure that I have the actual IP address and location of my visitors, since there are many users in Middle East and China using proxy services to bypass ...
3
votes
3answers
1k views

SEO- IP-based Language Change

I have a site,The site have lot of visitors from international.The site content currently in English.I want to change language dynamically by using PHP code,this done based on the requesting IP ...
3
votes
2answers
269 views

SEO indexing with dynamic titles, keywords and descriptions

I'm working on a website (all in one single domain) so I'm wondering to create dynamic titles, descriptions, keywords and headings for each location. What I'm doing is to get information from the IP ...
3
votes
5answers
298 views

Variable IPs: How variable are they? Best practices for tracking

There are a lot of questions on StackOverflow relating to session security / session hijacking, but there doesn't seem to be a really good solution to the problem. The three most common suggestions ...
3
votes
2answers
1k views

How to configure apache to allow access to subdomain on my local ip address

I would like to have others inside my local network access resources on my computer at outsideprojects.192.168.0.10. I am running Apache and have a virtual host configured so I can access it at ...
2
votes
3answers
2k views

How to restrict site access to all countries except mine with .htaccess?

I used this tool to download list in ".htaccess allow" format to allow traffic from my country and restrict all others but it's still accessible when visiting from bunch of foreign proxies. I'm ...
2
votes
3answers
5k views

Apache logs: “::1 … ”OPTIONS * HTTP/1.0" 200 -

Just looking at logs of a not-so-busy site on one of our Apache servers and notice tons of these in the log: ::1 - - [15/Apr/2011:12:11:40 -0700] "OPTIONS * HTTP/1.0" 200 - ::1 - - ...
2
votes
1answer
980 views

What is the SEO impact of moving my domain to another IP address and what is the right way of doing this?

I am planning to move several websites to a new hosting provider - keeping the same URL but will resolve to different IP addresses. For example, some sites are Canadian content-only sites, hosted on ...
2
votes
2answers
35 views

Prevent request via IP address of server

I'm pretty sure there's a way to prevent access to a website through the server IP address and to force the user to enter the domain name instead. so that http://156.56.75.87 should trigger a 403 and ...
2
votes
3answers
100 views

Is it unwise to blacklist an IP address?

We have a form on a commercial website which has been abused (but only once or twice) by someone from a particular IP address. A colleague wants to blacklist that IP address from the website. Seems ...
2
votes
3answers
323 views

POST attack on my website

I have a site (humanisms.co.uk) which incorporates a voting system, ie. user clicks "Up" and it sends a parameter to a PHP script via AJAX, the PHP inserts vote into MYSQL db and the new "Up" vote is ...
2
votes
1answer
212 views

PageSpeed - Minimize DNS lookups: why not use IP address for resources

One of the recommendations from web performance optimization services is to minimize DNS look ups. I fully understand why they recommend this but why not just point references to external files to ...
2
votes
3answers
155 views

IP - Country based ad delivery

I am looking for an ad manager script/system (open source or paid) which can deliver different ads based on the IP - country of the visitors. Would be nice if you can name one if you know!
2
votes
1answer
233 views

netblock ip - own hosting - home servers

I host 2 websites that generate a pretty substantial traffic (about 6000 unique visitors a day both). I have business Internet at home and I own one static IP from my ISP. I run my own servers. ...
2
votes
2answers
60 views

Optimising website IP for location

From my understanding of SEO, websites are optimised for the current location of their IP address. For example if xxx.xxx.xxx.xx resolves to the UK then you are more likely to get higher rankings in ...
2
votes
2answers
293 views

IP canonical URL issue

So I did a search engine optimization test today and one thing it came back with was: Your site's IP XX.XXX.XXX.XX does not redirect to your site's domain name. This could cause duplicate content ...
2
votes
1answer
149 views

Error 404 (Not Found)!

My website is www.sbsangpi.com and I checked the IP address of my website is (173.194.72.121). Whenever I browse 173.194.72.121, I got message "ERROR 404(Not Found)!!!" I use blogger and redirected ...
2
votes
3answers
83 views

Shared IP address

My website share the same IP address with a lot of other internet sites (500) that are not mine. How is this possible? is this affecting my SEO? Thanks
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
40 views

How do I validate IP Address ownership for authentication?

I have a website where digital content is behind a paywall. We verify users have access by IP address. Our customers are all large companies, with static IP addresses. So, if a user is within the ...
2
votes
3answers
259 views

Dozens of private IP addresses in Google Analytics

I was reviewing my Analytics for the past year and noticed a couple dozen different IP addresses showing up as referrals. I tracked a few of them down to be Google (why are Google IP addresses coming ...
2
votes
1answer
52 views

IPv6 traffic peaks every 2 hours at same value

I am building a website and there are no users yet. Odd thing is, every 2 hours I see a peak in IPv6 traffic: I am concerned someone is polling my server for nefarious reasons. Am I right to be ...
2
votes
2answers
842 views

Multiple IPs for customer in Plesk 11

First of all, please forgive me if my question sounds dumb, as I'm not very skilled in sys admin... For a shared web hosting plan, my host (which is a reseller) used to provide 3 different IPs for a ...
2
votes
1answer
70 views

Does Google treat AWS IP addresses as related?

We are hosting several websites on one of our servers, and wondering if because they are on the same subnet that they have been somehow penalized. We are not inter-linking between websites. However ...