• BBgmoro

        See all notifications

        Skip to content
        Moz logo Menu open Menu close
        • Products
          • Moz Pro
          • Moz Pro Home
          • Moz Local
          • Moz Local Home
          • STAT
          • Moz API
          • Moz API Home
          • Compare SEO Products
          • Moz Data
        • Free SEO Tools
          • Domain Analysis
          • Keyword Explorer
          • Link Explorer
          • Competitive Research
          • MozBar
          • More Free SEO Tools
        • Learn SEO
          • Beginner's Guide to SEO
          • SEO Learning Center
          • Moz Academy
          • MozCon
          • Webinars, Whitepapers, & Guides
        • Blog
        • Why Moz
          • Digital Marketers
          • Agency Solutions
          • Enterprise Solutions
          • Small Business Solutions
          • The Moz Story
          • New Releases
        • Log in
        • Log out
        • Products
          • Moz Pro

            Your all-in-one suite of SEO essentials.

          • Moz Local

            Raise your local SEO visibility with complete local SEO management.

          • STAT

            SERP tracking and analytics for enterprise SEO experts.

          • Moz API

            Power your SEO with our index of over 44 trillion links.

          • Compare SEO Products

            See which Moz SEO solution best meets your business needs.

          • Moz Data

            Power your SEO strategy & AI models with custom data solutions.

          Turn SEO data into actionable content briefs

          Turn SEO data into actionable content briefs

          Learn more
        • Free SEO Tools
          • Domain Analysis

            Get top competitive SEO metrics like DA, top pages and more.

          • Keyword Explorer

            Find traffic-driving keywords with our 1.25 billion+ keyword index.

          • Link Explorer

            Explore over 40 trillion links for powerful backlink data.

          • Competitive Research

            Uncover valuable insights on your organic search competitors.

          • MozBar

            See top SEO metrics for free as you browse the web.

          • More Free SEO Tools

            Explore all the free SEO tools Moz has to offer.

          Let your business shine with Listings AI

          Let your business shine with Listings AI

          Get found
        • Learn SEO
          • Beginner's Guide to SEO

            The #1 most popular introduction to SEO, trusted by millions.

          • SEO Learning Center

            Broaden your knowledge with SEO resources for all skill levels.

          • On-Demand Webinars

            Learn modern SEO best practices from industry experts.

          • How-To Guides

            Step-by-step guides to search success from the authority on SEO.

          • Moz Academy

            Upskill and get certified with on-demand courses & certifications.

          • MozCon

            Save on Early Bird tickets and join us in London or New York City

          Access 20 years of data with flexible pricing
          Moz API

          Access 20 years of data with flexible pricing

          Find your plan
        • Blog
        • Why Moz
          • Digital Marketers

            Simplify SEO tasks to save time and grow your traffic.

          • Small Business Solutions

            Uncover insights to make smarter marketing decisions in less time.

          • Agency Solutions

            Earn & keep valuable clients with unparalleled data & insights.

          • Enterprise Solutions

            Gain a competitive edge in the ever-changing world of search.

          • The Moz Story

            Moz was the first & remains the most trusted SEO company.

          • New Releases

            Get the scoop on the latest and greatest from Moz.

          Surface actionable competitive intel
          New Feature

          Surface actionable competitive intel

          Learn More
        • Log in
          • Moz Pro
          • Moz Local
          • Moz Local Dashboard
          • Moz API
          • Moz API Dashboard
          • Moz Academy
        • Avatar
          • Moz Home
          • Notifications
          • Account & Billing
          • Manage Users
          • Community Profile
          • My Q&A
          • My Videos
          • Log Out

        The Moz Q&A Forum

        • Forum
        • Questions
        • My Q&A
        • Users
        • Ask the Community

        Welcome to the Q&A Forum

        Browse the forum for helpful insights and fresh discussions about all things SEO.

        1. Home
        2. SEO Tactics
        3. Intermediate & Advanced SEO
        4. Exact Syntax for Canonical to PDFs for Windows Server

        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.

        Exact Syntax for Canonical to PDFs for Windows Server

        Intermediate & Advanced SEO
        5
        9
        1869
        Loading More Posts
        • Watching

          Notify me of new replies.
          Show question in unread.

        • Not Watching

          Do not notify me of new replies.
          Show question in unread if category is not ignored.

        • Ignoring

          Do not notify me of new replies.
          Do not show question in unread.

        • Oldest to Newest
        • Newest to Oldest
        • Most Votes
        Reply
        • Reply as question
        Locked
        This topic has been deleted. Only users with question management privileges can see it.
        • Midleton
          Midleton last edited by

          Hi There,

          I have got in my web several PDFs with the same content of the HTML version. Thus I need to set up a canonical for each of them in order to avoid duplicate content.

          In particular, I need to know how to write the exact syntax for the windows server (web.config) in order to implement the canonical to PDF. I surfed the web but it seems I cannot find this piece of info anywhere

          Thanks a lot!!

          1 Reply Last reply Reply Quote 0
          • AlanMosley
            AlanMosley last edited by

            Thanks Paul

            I had a look at the page, but as I can see it uses headers to identify the response, but the actions are rewrite or redirect. There is a custom response you can use,

            for a definitive answer I would ask on iis.net http://forums.iis.net/

            Or you could place each pdf in its own folder and place the header on the folder

            1 Reply Last reply Reply Quote 0
            • ThompsonPaul
              ThompsonPaul last edited by

              To implement a canonical tag for an individual page/file in IIS, you need to insert a custom response header via an outbound rule in the IIS Rewrite module, not through the web.config.

              Sorry I don't have a specific example handy (haven't had to wrassle with IIS in some time). I'll see if I can dig one up.

              Meanwhile, here's a link to the relevant section of the general Rewrite Module info in case maybe Alan can suggest the specifics.

              Paul

              1 Reply Last reply Reply Quote 0
              • AlanMosley
                AlanMosley @CleverPhD last edited by

                Thanks for finding that, I see it says url, but I cant see how that is actually done. All it does it create a web.config in the folder you choose, I found no way of doing it ofr the indervidual file, unless you have only one file per forder

                here is the web.config, how to test it works?

                <configuration><system.webserver><httpprotocol><customheaders><add name="CononicalUrl" value="Link: http:/domain.com/my.pdf; rel=canonical"></add></customheaders></httpprotocol></system.webserver></configuration>

                1 Reply Last reply Reply Quote 0
                • CleverPhD
                  CleverPhD @AlanMosley last edited by

                  Not according to this doc:

                  http://technet.microsoft.com/en-us/library/cc753812(v=ws.10).aspx

                  "Levels

                  The procedures for configuring HTTP headers can be performed at the following levels in IIS:

                  • Web Server

                  • Site

                  • Application

                  • Physical and virtual directories

                  • File (URL)"

                  AlanMosley 1 Reply Last reply Reply Quote 0
                  • DeanAndrews
                    DeanAndrews @AlanMosley last edited by

                    My mistake

                    1 Reply Last reply Reply Quote 0
                    • AlanMosley
                      AlanMosley last edited by

                      I don't think this can be done in web.config. I don't think it can be done at all.

                      while you can add a canonical header, to a folder using IIS, you cant add if to a file.

                      CleverPhD 1 Reply Last reply Reply Quote 0
                      • AlanMosley
                        AlanMosley @DeanAndrews last edited by

                        He's on a windows server and there is no .htaccess, you use web.config.

                        DeanAndrews 1 Reply Last reply Reply Quote 0
                        • DeanAndrews
                          DeanAndrews last edited by

                          Hi, I believe your question is answered here via .htaccess file rather than web.config. Moz blog: How To: Advanced rel="canonical" HTTP Headers

                          AlanMosley 1 Reply Last reply Reply Quote 0
                          • 1 / 1
                          • First post
                            Last post

                          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.

                          • See all categories

                          Related Questions

                          • JFA

                            What to do with PDFs that rank well?

                            Looking at some reports, I found that a client's site has PDFs that are ranking well for niche terms and getting some traffic. What can I do to get more out of them from a marketing standpoint? The obvious issue is that a PDF doesn't have the interactivity of a site visit, where we have analytics and CTAs. Someone has to follow a link back from the PDF to the site for us to even register a visit, let alone try to get their email or have them otherwise convert. My first guess is to make landing page summaries of the PDF content that link to the PDF, and canonical the PDF to the respective landing page. Has anyone tried this, or done something else that they would recommend again in this situation?

                            Intermediate & Advanced SEO | | JFA
                            0
                          • india-morocco

                            Move to new domain using Canonical Tag

                            At the moment, I am moving from olddomain.com (niche site) to the newdomain.com (multi-niche site). Due to some reasons, I do not want to use 301 right now and planning to use the canonical pointing to the new domain instead. Would Google rank the new site instead of the old site? From what I have learnt, the canonical tag lets Google know that which is the main source of the contents. Thank you very much!

                            Intermediate & Advanced SEO | | india-morocco
                            0
                          • ColesNathan

                            Is it best practice to have a canonical tags on all pages

                            The website I'm working on has no canonical tags. There is duplicate content so rel=canonicals need adding to certain pages but is it best practice to have a tag on every page ?

                            Intermediate & Advanced SEO | | ColesNathan
                            0
                          • rpaiva

                            Adding a Canonical Tag to each page referencing itself?

                            Hey Mozers! I've noticed that on www.Zappos.com they have a Canonical tag on each page referencing it self.  I have heard that this is a popular method but I dont see the point in canon tagging a page to its self. Any thoughts?

                            Intermediate & Advanced SEO | | rpaiva
                            0
                          • Jenny1

                            Partial duplicate content and canonical tags

                            Hi - I am rebuilding a consumer website, and each product page will contain a unique product image, and a sentence or two about the product (and we tend to use a lot of the same words in different ways across products). I'd like to have a tabbed area below the product info that talks about the overall product line, and this content would be duplicate across all the product pages (a "Why use our products" type of thing). I'd have this duplicate content also living on its own URL's so they can be found alone in the SERP's. Question is, do I need to add the canonical tag to this page, since there's partial duplicate content on the product pages? And if I did that, would my product pages go un-indexed?? I understand how to handle completely duplicated content, it's the partial duplicate that I'm having difficulty figuring out.

                            Intermediate & Advanced SEO | | Jenny1
                            0
                          • fablau

                            Are pages with a canonical tag indexed?

                            Hello here, here are my questions for you related to the canonical tag: 1. If I put online a new webpage with a canonical tag pointing to a different page, will this new page be indexed by Google and will I be able to find it in the index? 2. If instead I apply the canonical tag to a page already in the index, will this page be removed from the index? Thank you in advance for any insights! Fabrizio

                            Intermediate & Advanced SEO | | fablau
                            0
                          • Jellyfish-Agency

                            Rel=canonical tag on original page?

                            Afternoon All,
                            We are using Concrete5 as our CMS system, we are due to change but for the moment we have to play with what we have got. Part of the C5 system allows us to attribute our main page into other categories, via a page alaiser add-on. But what it also does is create several url paths and duplicate pages depending on how many times we take the original page and reference it in other categories. We have tried C5 canonical/SEO add-on's but they all seem to fall short. We have tried to address this issue in the most efficient way possible by using the rel=canonical tag. The only issue is the limitations of our cms system. We add the canonical tag to the original page header and this will automatically place this tag on all the duplicate pages and in turn fix the problem of duplicate content. The only problem is the canonical tag is on the original page as well, but it is referencing itself, effectively creating a tagging circle. Does anyone foresee a problem with the canonical tag being on the original page but in turn referencing itself? What we have done is try to simplify our duplicate content issues. We have over 2500 duplicate page issues because of this aliasing add-on and want to automate the canonical tag addition, rather than go to each individual page and manually add this tag, so the original reference page can remain the original. We have implemented this tag on one page at the moment with 9 duplicate pages/url's and are monitoring, but was curious if people had experienced this before or had any thoughts?

                            Intermediate & Advanced SEO | | Jellyfish-Agency
                            0
                          • kbbseo

                            How does a canonical work and is it necessary to also have a no index, follow tag in place?

                            Across our site, we have canonical tags in place for URLs that contain duplicate content and for URLs without a trailing slash since we are using URLs WITH a trailing slash for all URLs across our site. We also recently added a no index, follow tag to all non-canonical URLs since we noticed a high number of duplicate content URLs in Google Webmaster Tools. The first part of my question is: How does a canonical work? Does the robot read the canonical and immediately go to the canonical URL or does it continue to read past the canonical tag and get to the no index, follow tag if there is one present? The second part of my question is: Is it necessary to have both a canonical tag and no index, follow tag in place? Or should the canonical tag be sufficient to avoid duplicate content? And lastly, if both a canonical tag and no index, follow tag are in place, should they be in a specific order? Canonical tag first then no index, follow tag second or no index, follow tag first then canonical tag second? I would appreciate any insight you can give. Thank you!

                            Intermediate & Advanced SEO | | kbbseo
                            0

                          Get started with Moz Pro!

                          Unlock the power of advanced SEO tools and data-driven insights.

                          Start my free trial
                          Products
                          • Moz Pro
                          • Moz Local
                          • Moz API
                          • Moz Data
                          • STAT
                          • Product Updates
                          Moz Solutions
                          • SMB Solutions
                          • Agency Solutions
                          • Enterprise Solutions
                          • Digital Marketers
                          Free SEO Tools
                          • Domain Authority Checker
                          • Link Explorer
                          • Keyword Explorer
                          • Competitive Research
                          • Brand Authority Checker
                          • Local Citation Checker
                          • MozBar Extension
                          • MozCast
                          Resources
                          • Blog
                          • SEO Learning Center
                          • Help Hub
                          • Beginner's Guide to SEO
                          • How-to Guides
                          • Moz Academy
                          • API Docs
                          About Moz
                          • About
                          • Team
                          • Careers
                          • Contact
                          Why Moz
                          • Case Studies
                          • Testimonials
                          Get Involved
                          • Become an Affiliate
                          • MozCon
                          • Webinars
                          • Practical Marketer Series
                          • MozPod
                          Connect with us

                          Contact the Help team

                          Join our newsletter
                          Moz logo
                          © 2021 - 2026 SEOMoz, Inc., a Ziff Davis company. All rights reserved. Moz is a registered trademark of SEOMoz, Inc.
                          • Accessibility
                          • Terms of Use
                          • Privacy

                          Looks like your connection to Moz was lost, please wait while we try to reconnect.