Moz Q&A is closed.
After more than 13 years, and tens of thousands of questions, Moz Q&A closed on 12th December 2024. Whilst we’re not completely removing the content - many posts will still be possible to view - we have locked both new posts and new replies. More details here.
How do I complete a reverse DNS check when completing log file analysis?
-
I'm doing some log file analysis and need to run a reverse DNS check to ensure that I'm analysing logs from Google and not any imposters. Is there a command I can use in terminal to do this?
If not, whats the best way to verify Googlebot?
Thanks
-
That's awesome! Glad to know there's a bulk tool out there!
-
Hi Tyler,
Thanks for your reply. I managed to get down to 98 unique IPs and ran a bulk reverse DNS/IP Look-up using this tool:
https://www.infobyip.com/ipbulklookup.php
Thanks for your help though!
-
Hey Daniel,
If you want to verify that a user-agent is actually Googlebot, you'll want to use a log file analysis tool to aggregate all of the IP addresses associated with Googlebot. Once you have a list of IP addresses, you can perform a reverse DNS lookup to verify whether the IP addresses are actually associated with Googlebot or not.
If you're on windows/pc these steps should work:
https://www.serverintellect.com/support/dns/reverse-dns/If you're on mac try these steps:
1. open Terminal
2. type "host" + ip address
for example: "host 66.249.66.1"
3. hit enter
4. view results. For example: "1.66.249.66.in-addr.arpa domain name pointer crawl-66-249-66-1.googlebot.com"If the results are from Google.com or Googlebot.com, you can be sure it's actually Google crawling your site. Unfortunately, I don't know of any faster ways to achieve these results. I'm sure there's a tool out there, I just haven't found it yet.
This might also be a good resource for you: https://support.google.com/webmasters/answer/80553?hl=en
Good luck!
-Tyler
Browse Questions
Explore more categories
-
Moz Tools
Chat with the community about the Moz tools.
-
SEO Tactics
Discuss the SEO process with fellow marketers
-
Community
Discuss industry events, jobs, and news!
-
Digital Marketing
Chat about tactics outside of SEO
-
Research & Trends
Dive into research and trends in the search industry.
-
Support
Connect on product support and feature requests.
Related Questions
-
Do I need a separate robots.txt file for my shop subdomain?
Hello Mozzers! Apologies if this question has been asked before, but I couldn't find an answer so here goes... Currently I have one robots.txt file hosted at https://www.mysitename.org.uk/robots.txt We host our shop on a separate subdomain https://shop.mysitename.org.uk Do I need a separate robots.txt file for my subdomain? (Some Google searches are telling me yes and some no and I've become awfully confused!
Technical SEO | | sjbridle0 -
One robots.txt file for multiple sites?
I have 2 sites hosted with Blue Host and was told to put the robots.txt in the root folder and just use the one robots.txt for both sites. Is this right? It seems wrong. I want to block certain things on one site. Thanks for the help, Rena
Technical SEO | | renalynd270 -
Is there any value in having a blank robots.txt file?
I've read an audit where the writer recommended creating and uploading a blank robots.txt file, there was no current file in place. Is there any merit in having a blank robots.txt file? What is the minimum you would include in a basic robots.txt file?
Technical SEO | | NicDale0 -
Creating a CSV file for uploading 301 redirect URL map
Hi if i'm bulk uploading 301 redirects whats needed to create a csv file? is it just a case of creating an excel spreadsheet & have the old urls in column A and new urls in column B and then just convert to csv and upload ? or do i need to put in other details or paremeters etc etc ? Cheers Dan
Technical SEO | | Dan-Lawrence0 -
How can I find my Webmaster Tools HTML file?
So, totally amateur hour here, but I can't for the life of me find our HTML verification file for webmaster tools. I see nowhere to look at it in Google Webmaster Tools console, I tried a site:, I googled it, all the info out there is about how to verify a site. Ours is verified, but I need the verification file code to sync up with the Google API and no one seems to have it. Any thoughts?
Technical SEO | | healthgrades0 -
Oh no googlebot can not access my robots.txt file
I just receive a n error message from google webmaster Wonder it was something to do with Yoast plugin. Could somebody help me with troubleshooting this? Here's original message Over the last 24 hours, Googlebot encountered 189 errors while attempting to access your robots.txt. To ensure that we didn't crawl any pages listed in that file, we postponed our crawl. Your site's overall robots.txt error rate is 100.0%. Recommended action If the site error rate is 100%: Using a web browser, attempt to access http://www.soobumimphotography.com//robots.txt. If you are able to access it from your browser, then your site may be configured to deny access to googlebot. Check the configuration of your firewall and site to ensure that you are not denying access to googlebot. If your robots.txt is a static page, verify that your web service has proper permissions to access the file. If your robots.txt is dynamically generated, verify that the scripts that generate the robots.txt are properly configured and have permission to run. Check the logs for your website to see if your scripts are failing, and if so attempt to diagnose the cause of the failure. If the site error rate is less than 100%: Using Webmaster Tools, find a day with a high error rate and examine the logs for your web server for that day. Look for errors accessing robots.txt in the logs for that day and fix the causes of those errors. The most likely explanation is that your site is overloaded. Contact your hosting provider and discuss reconfiguring your web server or adding more resources to your website. After you think you've fixed the problem, use Fetch as Google to fetch http://www.soobumimphotography.com//robots.txt to verify that Googlebot can properly access your site.
Technical SEO | | BistosAmerica0 -
Content loc and player log tags for XML video site maps
I need a little help understanding how to create two of the required tags for a XML video site map for Google. 1. video:content_loc2.<video:player_loc< p=""></video:player_loc<></video:content_loc> Google explains their Video XML Site map requirements here:
Technical SEO | | dsexton10
www.google.com/support/webmasters/bin/answer.py?answer=80472
Using the example on this Google Web Master Help page (where they explain all six of the required tags) , here are examples of the two tags I need help with: video:content_locwww.example.com/video123.flv</video:content_loc> <video:player_loc allow_embed="yes" autoplay="ap=1">www.example.com/videoplayer.swf?video=12...video:player_loc></video:player_loc> The video I am trying to optimize is located on a page on my site:
www.mountainbikingmaine.com/races/bradbury_hawk.html
This page has an embedded Vimeo video. So I don't have the video file on my domain. It is on Vimeo. Here is source code from my page that I think provides the information I need to create the two tags that Google requires. <iframe src="<a rel=" nofollow"="" href="http://player.vimeo.com/video/24580638?title=0&byline=0&portrait=0"" target="_blank">player.vimeo.com/video/24580638?title=0&...amp;portrait=0"</a> width="400" height="533" frameborder="0"></iframe> [vimeo.com/24580638">Bradbury](<a rel=) Mountain Maine Hawk Migration Count from [vimeo.com/user3219915">dan](<a rel=) sexton Using this source from my site, can you suggest what to put in the two tags? Thanks! Dan0 -
Does Google index XML files?
Does Google or other search engines include XML files in their index? More specifically, I am wondering how Google knows the difference between an xml filetype and an RSS feed.
Technical SEO | | nicole.healthline0