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.
Setting A Custom User Agent in Screaming Frog
-
Hi all,
Probably a dumb question, but I wanted to make sure I get this right.
How do we set a custom user agent in Screaming Frog? I know its in the configuration settings, but what do I have to do to create a custom user agent specifically for a website?
Thanks much!
- Malika
-
Setting a custom user agent determines things like HTTP/2 so there can be a big difference if you change it to something that might not take advantage of something like HTTP/2
Apparently, it is coming to Pingdom very soon just like it is to Googlebot
http://royal.pingdom.com/2015/06/11/http2-new-protocol/
This Is an excellent example of a user agent's ability to modify the way your site is crawled as well as how efficient it is.
https://www.keycdn.com/blog/https-performance-overhead/
It is important to note that we didn’t use Pingdom in any of our tests because they use Chrome 39, which doesn’t support the new HTTP/2 protocol. HTTP/2 in Chrome isn’t supported until Chrome 43. You can tell this by looking at the
User-Agentin the request headers of your test results.
Pingdom user-agent
Note: WebPageTest uses Chrome 47 which does support HTTP/2.
Hope that clears things up,
Tom
-
Hi Malika,
Think about screaming frog and what it has to detect in order to do that correctly it needs the correct user agent syntax for it will not be able to make a crawl that would satisfy people.
Using a proper syntax for a user agent is essential and I have tried to be non-technical in this explanation I hope it works.
the reason screaming frog needs the user agent because the user-agent was added to HTTP to help web application developers deliver a better user experience. By respecting the syntax and semantics of the header, we make it easier and faster for header parsers to extract useful information from the headers that we can then act on.
Browser vendors are motivated to make web sites work no matter what specification violations are made. When the developers building web applications don’t care about following the rules, the browser vendors work to accommodate that. It is only by us application developers developing a healthy respect
When the developers building web applications don’t care about following the rules, the browser vendors work to accommodate that. It is only by us application developers developing a healthy respect
It is only by us application developers developing a healthy respect for the standards of the web, that the browser vendors will be able to start tightening up their codebase knowing that they don’t need to account for non-conformances.
For client libraries that do not enforce the syntax rules, you run the risk of using invalid characters that many server side frameworks will not detect. It is possible that only certain users, in particular, environments would identify the syntax violation. This can lead to difficult to track down bugs.
I hope this is a good explanation I've tried to keep it very to the point.
Respectfully,
Thomas
-
Hi Thomas,
would you have a simpler tutorial for me to understand? I am struggling a bit.
Thanks heaps in advance
-
I think I want something that is dumbed down to my level for me to understand. The above tutorials are great but not being a full time coder, I get lost while reading those.
-
Hi Matt,
I havent had a luck with this one yet.
-
Hi Malika! How'd it go? Did everything work out?
-
happy I could be of help let me know if there's any issue and I will try to be of help with it. All the best
-
Hi Thomas,
That's a lot of useful information there. I will have a go on it and let you know how it went.
Thanks heaps!
-
please let me know if I did not answer the question or you have any other questions
-
this gives you a very clear breakdown of user agents and their set of syntax rules. The following is valid example of user-agent that is full of special characters,
read this please http://www.bizcoder.com/the-much-maligned-user-agent-header
user-agent: foo&bar-product!/1.0a$*+ (a;comment,full=of/delimitersreferences but you want to pay attention to the first URL
https://developer.mozilla.org/en-US/docs/Web/HTTP/Gecko_user_agent_string_reference
| Mozilla/5.0 (X11; Linux i686; rv:10.0) Gecko/20100101 Firefox/10.0 |
http://stackoverflow.com/questions/15069533/http-request-header-useragent-variable
-
if you formatted it correctly see below
User-Agent = product *( RWS ( product / comment ) )and it was received by your headers yes you could fill in the blanks and test it.
https://mobiforge.com/research-analysis/webviews-and-user-agent-strings
http://mobiforge.com/news-comment/standards-and-browser-compatibility
-
No, you Cannot just put anything in there. The site has to recognize it and ask why you are doing this?
I have listed how to build and already built in addition to what your browser will create by using useragentstring.com
Must be formatted correctly and have it work with a header it is not as easy as it sometimes seems but not that hard either.
You can make & use this to make your own from your Mac or PC
http://www.useragentstring.com/
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2747.0 Safari/537.36
how to build a user agent
- https://developer.mozilla.org/en-US/docs/Web/HTTP/Gecko_user_agent_string_reference
- https://developer.mozilla.org/en-US/docs/Setting_HTTP_request_headers
- https://msdn.microsoft.com/en-us/library/ms537503(VS.85).aspx
Lists of user agents
https://support.google.com/webmasters/answer/1061943?hl=en
https://msdn.microsoft.com/en-us/library/ms537503(v=vs.85).aspx
-
Hi Thomas,
Thanks for responding, much appreciated!
Does that mean, if I type in something like -
HTTP request user agent -
Crawler access V2
&
Robots user agent
Crawler access V2
This will work too?
-
To crawl using a different user agent, select ‘User Agent’ in the ‘Configuration’ menu, then select a search bot from the drop-down or type in your desired user agent strings.
http://i.imgur.com/qPbmxnk.png
&
Video http://cl.ly/gH7p/Screen Recording 2016-05-25 at 08.27 PM.mov
Or
Also see
http://www.seerinteractive.com/blog/screaming-frog-guide/
https://www.screamingfrog.co.uk/seo-spider/user-guide/general/#user-agent
https://www.screamingfrog.co.uk/seo-spider/user-guide/
https://www.screamingfrog.co.uk/seo-spider/faq/
Got a burning SEO question?
Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.
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
-
Duplicate without user-selected canonical excluded
We have pdf files uploaded in the media of wordpress and used in our website. As these pdfs are duplicate content of the original publishers, we have marked links to these pdf urls as nofollow. These pages are also disallowed in robots.txt Now, Google Search Console has shown these pages Excluded as "Duplicate without user-selected canonical" As it comes out we cannot use canonical tag with pdf pages so as to point to the original pdf source If we embed a pdf viewer in our website and fetch the pdfs by passing the urls of the original publisher, would the pdfs be still read as text by google and again create duplicate content issue? Another thing, when the pdf expires and is removed, it would lead to 404 error. If we direct our users to the third party website, then it would add up to our bounce rate. What should be the appropriate way to handle duplicate pdfs? Thanks
Intermediate & Advanced SEO | | dailynaukri1 -
H1 and Schema Codes Set Up Correctly?
Greetings: It was pointed out to me that the h1 tags on my website (www.nyc-officespace-leader.com) all had exactly the same text and that duplication may be contributing to the very low page authority for most URLs. The duplicate h1 appears in line 54-54 (see below) of the home page: www.nyc-officespace-leader.com: itemscope itemtype="http://schema.org/LocalBusiness" style="position:absolute;top:-9999em;"> <span<br>itemprop="name">Metro Manhattan Office Space</span<br> <img< p="">But the above refers to schema" so is this really duplicate H1 or is there an exception if the H1 is within a schema? Also, I was told that the company street address and city and state were set up incorrectly as part of an alt tag. However these items also appear as schema in lines 49-68 shown below: Dangerous for me to perform surgery on the code without being certain about these key items!! Could ask my developer, however they may be uncomfortable considering that they set this up in the 1st place. So the view of neutral professionals would be highly welcome! itemprop="address" itemscope itemtype="http://schema.org/PostalAddress">
Intermediate & Advanced SEO | | Kingalan1
<span<br>itemprop="streetAddress">347 5th Ave #1008
<span<br>itemprop="addressLocality">New York
<span<br>itemprop="addressRegion">NY
<span<br>itemprop="postalCode">10016<div<br>itemprop="brand" itemscope itemtype="http://schema.org/Organization">
---------------------------------------------------------------------------</div<br></span<br></span<br></span<br></span<br></img<>0 -
Should I set up no index no follow on low quality pages?
I know it is a good idea for duplicate pages, blog tags, etc. but I remember somewhere that you can help the overall link juice of a website by adding no index no follow or no index follow low quality content pages of your website. Is it still a good idea to do this or was it never a good idea to begin with? Michael
Intermediate & Advanced SEO | | Michael_Rock0 -
Strange 404s in Screaming Frog
I just ran a website (Drupal) through screaming frog and the only 404s I found related to web pages which were the same as URLs already used on the website plus the company phone number so... www.company.com/[their phone number] - www.company.com/services[their phone number] - any ideas what might be causing this problem?
Intermediate & Advanced SEO | | McTaggart0 -
Help FORUM ( User generated content ) SEO best practices
Hello Moz folks ! For the very first time im dealing with a massive community who rely on UGC ( user generated content ). Their forum is finding a great deal of duplicate content/broken link/ duplicate title and on-site issue. I have Advance SEO knowledge related to ecommerce or blogging but new to forum and UGC. I would really love to learn or get ressources links that would allow me to see/understand the best practices in term of SEO. Any help is greatly appreciated. Best, Yan
Intermediate & Advanced SEO | | ydesjardins2000 -
My website (non-adult) is not appearing in Google search results when i have safe search settings on. How can i fix this?
Hi, I have this issue where my website does not appear in Google search results when i have the safe search settings on. If i turn the safe search settings off, my site appears no problem. I'm guessing Google is categorizing my website as adult, which it definitely is not. Has anyone had this issue before? Or does anyone know how to resolve this issue? Any help would be much appreciated. Thanks
Intermediate & Advanced SEO | | CupidTeam0 -
Set up a rel canonical
I have a question. I was wondering, if it was possible to set up a rel canonical. When I can't access the non canonical pages? For example, my site as at www.site.com , but the non cannocail is at site.com is their any way to set thet up without actually edting it at site.com ? Thanks for your help
Intermediate & Advanced SEO | | PeterRota0 -
How to set cannonical link rel to CS CART
I whant to specify a link rel cannonical for each category page, how to do that without changing the code (just from admin section), because filters and sorting search are making the site dublicate content with their parameters; If there is a way please specify the method, i whant to avoid hours of working in a script like this. Thank's.
Intermediate & Advanced SEO | | oneticsoft0