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.
Missing Canonical Tag for a PDF document
-
Error: Missing Canonical Tag
But URL is not a webpage it is a PDF document, is this fixable? -
@Adnan-farooq said in Missing Canonical Tag for a PDF document:
i don't think that we used canonical tag for PDF document i think no option is visible on moz
Hitachi Workshop Manual Instant Download PDF at your fingertips. Access valuable resources for quick and efficient equipment maintenance and operation. Don't miss out on this essential source for Hitachi machinery enthusiasts.
-
Hitachi Workshop Manual Instant Download PDF at your fingertips. Access valuable resources for quick and efficient equipment maintenance and operation. Don't miss out on this essential source for Hitachi machinery enthusiasts.
-
i don't think that we used canonical tag for PDF document i think no option is visible on moz
-
There's two answers to this.
One is that whilst it's best practice for all URLs to have a canonical (even if it's self-referencing), if this resource has no duplicates, it's not mandatory.
The other is that yes, you can add a canonical tag to a web page. You'd have to do it at the HTTP header level.
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
-
Dynamic Canonical Tag for Search Results Filtering Page
Hi everyone, I run a website in the travel industry where most users land on a location page (e.g. domain.com/product/location, before performing a search by selecting dates and times. This then takes them to a pre filtered dynamic search results page with options for their selected location on a separate URL (e.g. /book/results). The /book/results page can only be accessed on our website by performing a search, and URL's with search parameters from this page have never been indexed in the past. We work with some large partners who use our booking engine who have recently started linking to these pre filtered search results pages. This is not being done on a large scale and at present we only have a couple of hundred of these search results pages indexed. I could easily add a noindex or self-referencing canonical tag to the /book/results page to remove them, however it’s been suggested that adding a dynamic canonical tag to our pre filtered results pages pointing to the location page (based on the location information in the query string) could be beneficial for the SEO of our location pages. This makes sense as the partner websites that link to our /book/results page are very high authority and any way that this could be passed to our location pages (which are our most important in terms of rankings) sounds good, however I have a couple of concerns. • Is using a dynamic canonical tag in this way considered spammy / manipulative? • Whilst all the content that appears on the pre filtered /book/results page is present on the static location page where the search initiates and which the canonical tag would point to, it is presented differently and there is a lot more content on the static location page that isn’t present on the /book/results page. Is this likely to see the canonical tag being ignored / link equity not being passed as hoped, and are there greater risks to this that I should be worried about? I can’t find many examples of other sites where this has been implemented but the closest would probably be booking.com. https://www.booking.com/searchresults.it.html?label=gen173nr-1FCAEoggI46AdIM1gEaFCIAQGYARS4ARfIAQzYAQHoAQH4AQuIAgGoAgO4ArajrpcGwAIB0gIkYmUxYjNlZWMtYWQzMi00NWJmLTk5NTItNzY1MzljZTVhOTk02AIG4AIB&sid=d4030ebf4f04bb7ddcb2b04d1bade521&dest_id=-2601889&dest_type=city& Canonical points to https://www.booking.com/city/gb/london.it.html In our scenario however there is a greater difference between the content on both pages (and booking.com have a load of search results pages indexed which is not what we’re looking for) Would be great to get any feedback on this before I rule it out. Thanks!
Technical SEO | | GAnalytics1 -
"Duplicate without user-selected canonical” - impact to Google Ads costs
Hello, we are facing some issues on our project and we would like to get some advice. Scenario
Paid Search Marketing | | Alex_Pisa
We run several websites (www.brandName.com, www.brandName.be, www.brandName.ch, etc..) all in French language . All sites have nearly the same content & structure, only minor text (some headings and phone numbers due to different countries are different). There are many good quality pages, but again they are the same over all domains. Current solution
Currently we don’t use canonicals, instead we use rel="alternate" hreflang="x-default": <link rel="alternate" hreflang="fr-BE" href="https://www.brandName.be/" /> <link rel="alternate" hreflang="fr-CA" href="https://www.brandName.ca/" /> <link rel="alternate" hreflang="fr-CH" href="https://www.brandName.ch/" /> <link rel="alternate" hreflang="fr-FR" href="https://www.brandName.fr/" /> <link rel="alternate" hreflang="fr-LU" href="https://www.brandName.lu/" /> <link rel="alternate" hreflang="x-default" href="https://www.brandName.com/" /> Naturally this si reflected in ""Duplicate without user-selected canonical” . Issue
We create the same ad in Google Ads for 2 domains. So the content is mostly identical, ads are identical, target URLs differ only in domain. Yet Google Ads “Quality score” is different (10/10 vs. 6/10) and “Landing page experience” is very different (Above average vs. Average). Some members of our team think lower “Landing page experience” increases the Google Ads costs, which I personally don't believe, but I want to double check. Question: Can “Duplicate without user-selected canonical” issue decrease the “Landing page experience” rating and as result can it cause higher Google ads costs? Any suggestions/ideas appreciated, thanks. Regards.0 -
"Duplicate without user-selected canonical” - impact to SERPs
Hello, we are facing some issues on our project and we would like to get some advice. Scenario
International SEO | | Alex_Pisa
We run several websites (www.brandName.com, www.brandName.be, www.brandName.ch, etc..) all in French language . All sites have nearly the same content & structure, only minor text (some headings and phone numbers due to different countries are different). There are many good quality pages, but again they are the same over all domains. Goal
We want local domains (be, ch, fr, etc.) to appear in SERPs and also comply with Google policy of local language variants and/or canonical links. Current solution
Currently we don’t use canonicals, instead we use rel="alternate" hreflang="x-default": <link rel="alternate" hreflang="fr-BE" href="https://www.brandName.be/" /> <link rel="alternate" hreflang="fr-CA" href="https://www.brandName.ca/" /> <link rel="alternate" hreflang="fr-CH" href="https://www.brandName.ch/" /> <link rel="alternate" hreflang="fr-FR" href="https://www.brandName.fr/" /> <link rel="alternate" hreflang="fr-LU" href="https://www.brandName.lu/" /> <link rel="alternate" hreflang="x-default" href="https://www.brandName.com/" /> Issue
After Googlebot crawled the websites we see lot of “Duplicate without user-selected canonical” in Coverage/Excluded report (Google Search Console) for most domains. When we inspect some of those URLs we can see Google has decided that canonical URL points to (example): User-declared canonical: None
Google-selected canonical: …same page, but on a different domain Strange is that even those URLs are on Google and can be found in SERPs. Obviously Google doesn’t know what to make of it. We noticed many websites in the same scenario use a self-referencing approach which is not really “kosher” - we are afraid if we use the same approach we can get penalized by Google. Question: What do you suggest to fix the “Duplicate without user-selected canonical” in our scenario? Any suggestions/ideas appreciated, thanks. Regards.0 -
Does Google read dynamic canonical tags?
Does Google recognize rel=canonical tag if loaded dynamically via javascript? Here's what we're using to load: <script> //Inject canonical link into page head if (window.location.href.indexOf("/subdirname1") != -1) { canonicalLink = window.location.href.replace("/kapiolani", ""); } if (window.location.href.indexOf("/subdirname2") != -1) { canonicalLink = window.location.href.replace("/straub", ""); } if (window.location.href.indexOf("/subdirname3") != -1) { canonicalLink = window.location.href.replace("/pali-momi", ""); } if (window.location.href.indexOf("/subdirname4") != -1) { canonicalLink = window.location.href.replace("/wilcox", ""); } if (canonicalLink != window.location.href) { var link = document.createElement('link'); link.rel = 'canonical'; link.href = canonicalLink; document.head.appendChild(link); } script>
Technical SEO | | SoulSurfer80 -
What is the best way to find missing alt tags on my site (site wide - not page by page)?
I am looking to find all the missing alt tags on my site at once. I have a FF extension that use to do it page by page, but my site is huge and that will take forever. Thanks!!
Technical SEO | | franchisesolutions1 -
• symbol in title tag
We have a few title tags with a circular dot symbol, which is created by the code "•" Humans see a dot, but googlebot sees • Does this negatively impact our SEO, or is googlebot aware that **• == *** to human eyes
Technical SEO | | lighttable0 -
I need help with a PHP canonical URL tags
I found a little difficult for me to do a canonical tag in my PHP. On-Page Report Card We check to make sure that IF you use canonical URL tags, it points to the right page. If the canonical tag points to a different URL, engines will not count this page as the reference resource and thus, it won't have an opportunity to rank. If you've not made this page the rel=canonical target, change the reference to this URL. NOTE: For pages not employing canonical URL tags, this factor does not apply. I don't know how to tidy my PHP Any suggestion.
Technical SEO | | lnietob0 -
How do I fix the h1 tag?
No More Than One H1 Tag Easy fix <dl> <dt>Number of H1s</dt> <dd>2</dd> <dt>Explanation</dt> <dd>Best practices for both SEO and accessibility require only a single H1 tag. The H1 is meant to be the page's headline, and thus, multiple H1s are confusing. Consider employing H2, H3 or CSS styles to achieve the same results with text visualization.</dd> <dt>Recommendation</dt> <dd>Remove multiple instances of the H1 tag, so that only one exists on the page.</dd> <dd>I get this error yet it does not tell me how to fix it. I'm not even sure what the H1 tag is?
Technical SEO | | 678648631264
</dd> </dl>0