Site Migrations: SEO Mythbusting



In the fourth episode of SEO Mythbusting season 2, Martin Splitt (Developer Advocate, Google) and Glenn Gabe (Digital Marketing Consultant, G-Squared Interactive) discuss the most common SEO questions and myths around site moves, URL migration, domain name changes, and more!

Specific timestamped topics discussed in this episode:
Redirecting images during a site redesign or migration (0:00)
Will you always experience a drop in traffic with a domain name change or a site migration? (1:53)
Buying a new domain name with history & traffic anomalies (2:40)
Site merger vs site move (6:24)
What goes on on the Google side once a domain name change is triggered? (8:12)
Why would one use the Change of Address Tool? (10:16)
If a site moves, is there a reassessment of content quality by Google? (11:15)
Should you revert back if a site migration results in a major drop in traffic? (14:54)
Should one unblock URLs normally blocked by robots.txt during a site migration? (17:31)
Most common problems after a site moves & doing things step-by-step (18:16)
(19:32)

Documentation mentioned in this episode:
How to 301 redirect images during a website redesign or CMS migration → https://goo.gle/32tGMJz
Site moves (with URL changes) → https://goo.gle/2FQti2E
Change of Address Tool → https://goo.gle/3lh3uNq
Penguin update → https://goo.gle/32j0ibi

Watch more SEO Mythbusting episodes → https://goo.gle/SEO-Mythbusting
Subscribe to the Google Search Central Channel → https://goo.gle/SearchCentral

#SEO #GoogleSearch

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28 thoughts on “Site Migrations: SEO Mythbusting”

  1. Great info, thanks. However I'm still not clear on one important point…

    I recently transferred a domain and rebuilt the original WordPress website from scratch using php. This has meant that just about all of the original URLs have been made redundant.

    However some make sense to redirect, such as:

    Redirect 301 /residential-window-cleaning/ /residential-window-cleaning.php

    But what about those URLs which I no longer need and no longer have a physical page? Would it be better to 301 them to the homepage (or other most relevant page), or just leave them to 404 hoping that eventually they'll be no longer indexed?

    Thanks.

  2. Is using a server side wildcard redirect good practice? This was done but the old domain urls are still indexed a year later. Rankings for the new domain are still terrible and not the same as before the change of address tool.

  3. I'm currently going through multiple website consolidations – it's a minefield and I would give yourself plenty of time when doing this.

    Would be good to have a video on websites being merged if possible please!

  4. Next topic: International SEO please!

    Example:
    Our current website is geographically in AU but it's on .com TLD not .com.au or .au TLD. We are planning to create or expand in the US. So we wanted to like make the current .com TLD to US and change the TLD of the .com to .com.au or .au.

    1. What are the best practices?
    2. What will the be technical issues that will occur?
    3. Will it affect the traffic and rankings of the current AU TLD which is .com when it's being migrated to .com.au or .au?

    We are currently on the following countries below and the next country is the US.
    .com/nz/
    .com/ie/
    .com/uk/

  5. Dear all.
    Thank you for your videos, they are very good in clarifying the cloudy things in our heads.

    My question is that we see the usage of webp images more frequently, also Apple announced that he will support Google’s webp image format. Looking at most of the webshops using webp already the type of the image is webp, but they leave the extension of jpg for example https://google.com/image.jpg but type is webp. What could be the reason for that? Wouldn't it be better if the image would have a .webp extension or no extension at all. Is this related somehow to indexing or SEO? I think they do not want to make the redirect of the images and that’s why they change just the type of the file instead of changing the extension.

    Thank you.

  6. Nice topic. This is exactly what is wrong with our site.. We will be happy if you can throw some insight here..
    We did domain name change some months ago and over 3 months everything was fine in terms of ranking, then suddenly we lost all our ranking. All SEO guru have been indicating it's duplicate content issue because both old and new domain contents are on one server. Can you drop some light on this?

  7. Great clarification about the myth that traffic will plummet when migrating to a new site. As long as the URL structures are the same and accessibility is there for Google and your users – everything should stay the same. Thanks Martin and Glenn!

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