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.

      Enhance Keyword Discovery with Bulk Analysis
      Moz Pro

      Enhance Keyword Discovery with Bulk Analysis

      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.

      NEW Keyword Suggestions by Topic
      Moz Pro

      NEW Keyword Suggestions by Topic

      Learn more
    • 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
    • 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. International SEO
    4. Upper case or/and lower case in rel="alternate" hreflang

    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.

    Upper case or/and lower case in rel="alternate" hreflang

    International SEO
    2
    2
    1964
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as question
    Log in to reply
    This topic has been deleted. Only users with question management privileges can see it.
    • MartijnHoving82
      MartijnHoving82 last edited by

      Hi Mozzers,

      I have a question about the rel="alternate" hreflang tag, with an example.

      When I use two subfolders for two different countries/languages, for instance www.domain.com/nl-nl/ and www.domain.com/nl-en/ (for the English version) and I want to use the rel="alternate" hreflang tag, do I need to follow the ISO standards concerning Uppercase country code and Lowercase language code (en-NL)? Or is it okay to use the Lowercase country and language code (en-nl), since we also use this in the URL of the Subfolder.

      What does Google prefer?

      Thanks in advance.

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

        Hey there, Lowercase is fine.

        Not sure why you would have /nl-nl/ and /nl-en/ though, it's either English or Dutch, right?

        I've set this up many times before and it works just fine, although it's sometimes a little overkill unless you have the English version of a page ranking higher than the Dutch version in Google.nl for example.

        I usually find adding these as separate websites in WMT's and setting the target country correctly for each site you shouldn't have any problems.

        So add http://www.domain.com/nl/ as its own site in WMT and set target country to Netherlands, then add http://www.domain.com/en/ as another site and set its target country to UK.

        Hope this helps,

        Goodluck,

        Woody 🙂

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

        Got a burning SEO question?

        Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.


        Start my free trial


        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

        • moon-boots

          Traffic drop after hreflang tags added

          We operate one company with two websites each serving a different location, one targeting EU customers and the other targeting US customers. thespacecollective.com (EU customers) thespacecollective.com/us/ (US customers) We have always had canonical tags in place, but we added the following hreflang tags two weeks ago (apparently this is best practice); EU site (thespacecollective.com) US site (thespacecollective.com/us/) Literally the same day we added the above hreflang tags our traffic dropped off a cliff (we have lost around 70-80% on the EU site, and after a minor recovery, 50% on the US site). Now, my first instinct is to remove the tags entirely and go back to just using canonical, but if this is truly best practice, that could do more damage than good. This is the only change that has been made in recent weeks regarding SEO. Is there something obvious that I am missing because it looks correct to me?

          International SEO | | moon-boots
          0
        • ennovators

          Hreflang for bilingual website in the same region/location

          Hi everyone, got a quick question concerning the hreflang tag. I have a website with 2 different language versions targeting to the same region(Reason: The area is bilingual however not everyone speaks the other language fluently) Question:
          Can I use hreflang in that case like: Many thanks in advance

          International SEO | | ennovators
          0
        • Dan-Lawrence

          International SEO Subfolders / user journey etc

          Hi According to all the resources i can find on Moz and elsewhere re int seo, say in the context of having duplicate versions of US & UK site, its best to have subfolders i.e. domain.com/en-gb/ & domain.com/en-us/ however when it comes to the user journey and promoting web address seems a bit weird to say visit us at: domain.com/en-us/ !? And what happens if someone just enters in domain.com from the US or UK ? My client wants to use an IP sniffer but i've read thats bad practice and should employ above style country/language code instead, but i'm confused about both the user journey and experience in the case of multiple sub folders. Any advice much appreciated ? Cheers Dan

          International SEO | | Dan-Lawrence
          0
        • SameerBhatia

          When I upload my app in chrome web store, it shows this error - "no manifest found in package please make sure to put manifest at the root directory of the zip package". Please explain me the process of putting manifest file.

          Chrome Web store give error "no manifest found in package please make sure to put manifest at the root directory of the zip package"

          International SEO | | SameerBhatia
          0
        • Awaraman

          Redirect the main site to keyword-rich subfolder / specific page for SEO

          Hi, I have two questions. Question 1: is it worthwhile to redirect the main site to keyword-rich subfolder / specific page for SEO? For example, my company's webpage is www.example.com. Would it make sense to redirect (301) the main site to address www.example.com/service-one-in-certain-city ? I am asking this as I have learned that it is important for SEO to have keywords in the URL, and I was thinking that we could do this and include the most important keywords to the subfolder / specific URL. What are the pros and cons of this? Should I create folders or pages just the sake of keywords? Question 2: Most companies have their main URL shown as www.example.com when you access their domain. However, some multi-language sites show e.g. www.example.com/en or www.example.com/en/main when you type the domain to your web browser to access the site. I understand that this is a common practice to use subdomains or folders to separate different language versions. My question is regarding subfolders. Is it better to have only the subfolder shown (www.example.com/en) or should I also include the specific page's URL after the subfolder with keywords (www.example.com/en/main or www.example.com/en/service-one-in-certain-city)? I don't really understand why some companies show only the subfolder of a specific language page and some the page's URL after the subfolder. Thanks in advance, Sam

          International SEO | | Awaraman
          1
        • Bdig

          Multiple hreflang tags

          I'm trying to advise on the multi country seo for a site in terms of markup. We've already decided on using sub folders rather than separate sites or subdomains due to an established link profile and good rankings in all countries. The question is in relation to the homepage. Obviously this is the page most likely to rank well in any country (the site is a .com). But can multiple hreflang tags be put on the page to say that the page targets many countries? Or would leaving the hreflang tag off allow it to just rank for all countries? Also do Yahoo and Bing follow hreflang tags? I can't find any info on this anywhere! Thanks very much in advance for any help!

          International SEO | | Bdig
          0
        • MarloSchneider

          Cross domain rel alternate, will it help or hurt?

          I have a website that has similar pages on a US version and a UK version. Currently we want Uk traffic to go to the US, but the US domain is so strong it is outranking the UK in the UK. We want to try using rel alternate but have some concerns. Currently for some of our keywords US is #1, UK is #4. If we implement rel alternate, will it just remove our US page? We don't want to shoot ourselves in the foot and lose traffic. Is this worth doing, will it just remove our US ranking and our double listing? Any anecdotes, experiences or opinions are appreciated. Thanks.

          International SEO | | MarloSchneider
          0
        • KaneJamison

          Correct Hreflang & Canonical Implementation for Multilingual Site

          OK, 2 primary questions for a multilingual site. This specific site has 2 language so I'll use that for the examples. 1 - Self-Referencing Hreflang Tag Necessary? The first is regarding the correct implementation of hreflang, and whether or not I should have a self-referencing hreflang tag. In other words, if I am looking at the source code for http://www.example.com/es/ (our Spanish subfolder), I am uncertain whether the source code should contain the second line below: Obviously the Spanish version should reference the English version, but does it need to reference itself? I have seen both versions implemented, with seemingly good results, but I want to know the best practice if it exists. 2 - Canonical of Current Language or Default Language? The second questions is regarding which canonical to use on the secondary language pages. I am aware of the update to the Google Webmaster Guidelines recently that state not to use canonical, but they say not to do it because everyone was messing it up, not because it shouldn't be done. So, in other words, if I am looking at the source code for http://www.example.com/es/ (our Spanish subfolder), which of the two following canonicals is correct? OR For this question, you can assume that (A) the English version of the site is our default and (B) the content is identical. Thanks guys, feel free to ask any qualifiers you think are relevant.

          International SEO | | KaneJamison
          1

        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 - 2025 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.