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This is long time question. And answer is as fast you forget about that "count" the seamless migration will be.

Because many people was stopped migration awaiting an miracle about moving their counts to HTTPS version. And years was passed - and no solution for that.

Forcing HTTPS -> HTTP -> HTTPS is risky because sooner or later something can be changed and crawling issues can happens. Also maintain both sites for HTTP/HTTPS infrastructure can have some effect on your bills.

You need to simplify it by providing only one - HTTPS version.

Peter

And actual answer is "it depends". For example linking a "contact us" or "about us" is important. But on other side linking "Privacy Policy" or "Terms of Service" isn't somehow important. Except if you're in Germany, Austria, Switzerland where people are looking for Imprint pages.

One of easiest ways to fix this is to make links to be non-crawlable:
https://youtu.be/PFwUbgvpdaQ?t=600
because bot didn't click on web page.

I hope that this will helps you!

Peter

Canonical and hreflangs are always full url and you can't use relative addresses:
https://developers.google.com/search/docs/advanced/crawling/localized-versions?hl=en
"Alternate URLs must be fully-qualified, including the transport method (http/https), so: https://example.com/foo, not //example.com/foo or /foo"
https://developers.google.com/search/docs/advanced/crawling/consolidate-duplicate-urls

So you need to remake your example with full URLs like:
protocol://domain (with or withour WWW.)/path/to/some/folder/

Also avoid geotargeting for IP.  This can went you on deep issues since Googlebot is crawling mostly from US IP. Therefore Google NEVER can see your UK links. Source:
https://developers.google.com/search/docs/advanced/crawling/locale-adaptive-pages?hl=en
"If your site has locale-adaptive pages (that is, your site returns different content based on the perceived country or preferred language of the visitor), Google might not crawl, index, or rank all your content for different locales. This is because the default IP addresses of the Googlebot crawler appear to be based in the USA. In addition, the crawler sends HTTP requests without setting Accept-Language in the request header."

Regards,

Peter

Best practices is to remove and noindex such parameters. One of latest projects was Ecommerce shop with 5k products and over 220k indexed pages from categories.

So you need to AVOID indexing such ?results=16 or ?order=asc or ?search=test and to have PURE and only pagination.

Example:
https://www.jamestowndistributors.com/product/epoxy-and-adhesives
https://www.jamestowndistributors.com/product/epoxy-and-adhesives?page=2
https://www.jamestowndistributors.com/product/epoxy-and-adhesives?page=3
https://www.jamestowndistributors.com/product/epoxy-and-adhesives?page=4
are ONLY valid categories pages.

If you have infinite scroll situation is described here:
https://developers.google.com/search/blog/2014/02/infinite-scroll-search-friendly?hl=en

I hope that this will help you!

Peter

Can you explain your issue please?

Peter

I think that i was answer you on other forum...

%5B is [ 
and %5D is ]
%20 is " " (space)

So technically speaking something add this to the URL - "[null id=43484]" without quotes. You need to find that and fix it.

Is code on .htaccess works?

It should be on top because that file is executed from top to bottom. And if some rule must be executed then execution flow can stop so next rows can't be executed.

Hello there!

In GA you tracks site by "code ID". So any site that have code will be tracked.

Few months ago i migrate site from XYZ.machine to XYZmachine.com without changing GA code. And GA still collecting data for sites without changing code at all.

Peter

Both issues are on ALL WordPress sites.

xmlrpc.php return 405 because it's work under HTTP POST but bot crawl under HTTP GET.
And error 405 mean switch from GET to POST. But bot can't do that.

admin-ajax.php return 400 because it's not designed for direct use. You must make call with some parameter and it will return some information.
But as name says - it's responsible for AJAX calls and it's not for direct use that's why it return 400 when it's called w/o parameters.

So - that issues are not related to your issue.
For example mine WP sites also return same error codes to the bot.

Peter

So far we have Microdata, RDFa and JSON-LD.

I'll cover Microdata and RDFa in same because they're similar. So they both are addition to HTML attributes indicating what Schema.org field names correspond with what user-visible text on the page. Works perfect but need lot of developer work and designer changes. Because both backend (admin interface) and frontend (HTML) must be changed. And there are many issues that can be messed - incorrect implementation, "rich snippet spam", software bugs, etc. Look easy as 1-2-3 but in reality it's pain (PIA) for implementation and support. Example - only product implementation require in backend least 10 edit boxes if they're manual filled.

JSON-LD - it's relative new protocol based on Schema.org. The main benefit is that you split representation layer (HTML) from semantic layer (JSON-LD). In prev. formats - they're same and linked each other. Now they're split. This give you much more freedom than before. You can place HTML data whatever you wish and just add hidden JSON in head or in content that will add semantic marking. This is future (for now).

If you wish to read more about creation of JSON-LD then this article is for you:
http://manu.sporny.org/2014/json-ld-origins-2/

The usual suspect is "Amazon Datacenter":
https://aws.amazon.com/about-aws/global-infrastructure/

Since this datacenter is hosting many bots (Even Roger - MOZ bot was there!) you must identify bot user agent and see why this happens. Most bots follow robots.txt protocol so you can disable them scanning your site.

As long as you return 404 this is good. But the question is "why search results in CMS are indexed?". And answer of this is "Joomla". I will keep them as 404.

But there are other 404 pages there:
http://www.ethicaredental.co.uk/download.php?f=tombolis-article.pdf <- http://www.ethicaredental.co.uk/download.php?f=tombolis-article.pdf
http://www.ethicaredental.co.uk/download.php?f=ethicare-dental-ad-april-2009.pdf <- http://www.ethicaredental.co.uk/download.php?f=ethicare-dental-ad-april-2009.pdf
http://www.ethicaredental.co.uk/download.php?f=ethicare-dental-ad-may-2008.pdf <- http://www.ethicaredental.co.uk/a-one-stop-shop-for-oral-health-needs/
http://www.ethicaredental.co.uk/download.php?f=how-i-did-it.pdf <- http://www.ethicaredental.co.uk/how-i-did-it/

Few domains that didn't exist anymore:

file:///Z:/Clients/Current%20Clients/Ethicare%20Dental/Articles/JULY%20ARTICLES/Is%20the%20new%20best%20toothpaste%20in%20the%20world%20all%20its%20cracked%20up%20to%20be.docx <- http://www.ethicaredental.co.uk/is-the-new-worlds-best-toothpaste-all-its-cracked-up-to-be/
http://www.hypnotherapydunstable.co.uk/img/dentist.jpg <- http://www.ethicaredental.co.uk/taking-the-fear-out-of-a-trip-to-the-dentists-chair

Few 301 that i would skip:
http://www.ethicaredental.co.uk/orthodontist -> http://www.ethicaredental.co.uk/orthodontist/
http://www.ethicaredental.co.uk/hygienist -> http://www.ethicaredental.co.uk/hygienist/
http://www.ethicaredental.co.uk/finance -> http://www.ethicaredental.co.uk/finance-and-guarantee/
http://www.ethicaredental.co.uk/zoom-tooth-whitening -> http://www.ethicaredental.co.uk/tooth-whitening/
there are much more i just show 3-4 examples.
And few more small issues. This is result of direct crawl now on site. If there was link as:
http://www.ethicaredental.co.uk/blah-blah
that i can't see it now anymore and it return 404 now. I would 410 it to prevent deleting them over and over from SearchConsole.

Yes - there is bug in your robots.txt. You should wrote some as:
Disallow: /?display=table
or:
Disallow: /?display=*

This is pretty awesome! And i like it!

Would you like to extend this in Jan 31 this year for all members that we can see? I can make importer of their table to XML so later we can use =ImportXML. And one bad news "Only members who have logged in within the last 60 days and have 25 or more MozPoints will be shown." So there can be other "top valued" members but we can't see it because this limitation.

And also special users like "ghost in the shell" -> https://moz.rankious.com/_moz/community/users/2380

Ok, here is document:
https://docs.google.com/spreadsheets/d/1YGkY2Yz1RefwcG4nqJ1lbnEfTghn7pRtb9di2HICiaA/edit?usp=sharing
captured before hour.
I leave it as-is just extract username but later make regex to extract their posts and ugc posts.

This is Top 4291 as far as i see.

Here is procedure how to get it:

1. wget https://moz.rankious.com/_moz/community/users  - i love *nix command line tools but you can use web browser and save as HTML.
2. Open HTML for editing.
3. Find "  var top_users =" and delete everything BEFORE it. Now document should start as "[[1,"
4. Find "]];" and delete semicolon and everything AFTER it. Now documents should end with "]]"
5. As you can see we have well formated JSON. Bad news - i can't import it in Sheets due bug in =ImportJSON function.
6. Let's go in PlanB - https://json-csv.com/
7. Copy all JSON into clipboard
8. Paste it on json-csv.com
9. Push button, get CSV
10. Import CSV into Google Docs
11. Enjoy!

Just use some of mine formulas to extract number of posts or UGC. I can make formula for extracting username too.

TL;DR - It dependents.

Main answer is - how you get traffic? If this is traditional way - "write great content and they will follow" this also bring comments. And comments create new content with new traffic. Because Google/Bing/Yahoo can index content and comments too. Moz uses this way in their blog section for example. This is organic way.

But in new way - comments in social networks bring traffic. Because more people seeing that person comment/share/like something and they do "curiosity driven research" what is this content. But this bring only social network traffic since not all of Facebook comments can be indexed from search machines. This is social way.

This is theory about traffic and i describe only two of them (they're much many but i simplify little bit things). Now turning things into practical. Disqus can have some issues with crawling comments from Google. This is well known and described many times: https://help.disqus.com/customer/portal/articles/762307-why-isn-t-google-indexing-my-comments-
Facebook comments can't be indexed at all too from Google. There are some articles from 2011 that they can but i can't find working example.

That's why it's best if you can check - are your existing comments indexed? If they are you can leave both commenting systems. It's much better. If they wasn't indexed you can switch to Facebook commenting system. Also check on other site can you find some Facebook comment in Google.

And one suggestion "Don't Build Your House on Rented Land". If you can use your own commenting system this will be much better. Just like Moz.

This is normal. First you need to evaluate this guide: http://www.elite-strategies.com/flavors-types-google-penalties/ and see what kind of penalty you have. Then you need to get all data from Analytics, Search Console both Links and Analytics there.

And here is huge analysis...

1. You need to check timeframe of your sudden drop. Are there some turbulence in SERP? New algo released? Anything weird in your own castle (server, CMS, hosting provider, etc)? If there is something - fix it. Also read about algos/turbulences in industry news sites.
2. Check for messages in SearchConsole about "Manual Actions" and fix them if it's any.
3. Check for sudden change of your links and create linking profile. If there are new and weird links from spammy sources - disavow them ASAP. If there is overoptimization for keywords - change anchor or disavow. This can be something Penguin algo related.
4. Check for sudden change of your site - thin content, aggregated content, duplicate, irrevelant, etc. Check also user signals - low CTR, high bounce rate, low time on site and low % of returning users. Also check bad UI - design, navigation, mobile redirects, site speed, ads. Check for low trustworthiness - in Google Raters Handbook that was recently released. This can be - providing contact information, ToS, PP, etc. And last - overoptimization. This can be something to Panda algo related.
5. Check for other algorithms - like TopHeavy aka Page Layout Algorithms that may affect your site.

So after you know what can be your drop related then check and recheck. Isn't first nor last time when you can think about Panda but in reality was Penguin or vice versa. This can save you few months. After you're 100% sure what was then try to make changes to escape from algo penalty.

Same happens to me almost year and half. We're running brand new site and faced sandbox algo. But we make few links more than we should and from low quality sites. So site was shown in SERP for month in first or second page and then suddenly drop to 10 page. Our organic traffic was fell to 1/10 of before almost overnight. But we make new traffic sources - social media and referral traffic so we could live without organic. We change links, make diversify linking profile changing links, anchors or even both. We also delete some links. But nothing happen in SERP position. Then i use disavow tool and 2 weeks ago there was algo refresh (Penguin). Almost overnight search traffic jump more than 10x and recovering previous positions and getting new and ever better positions. Today - this site make traffic as 10x than after recovering.

The problem is that you need to make changes in site against penalty. And wait for algo refresh. You also need huge patience because some drop can happen anytime, but for recovering you need algo refreshes. And refreshes take months or even years.

"1. Focus Your META Description
Let's say that, for some reason, we really wanted that SEOmoz blog post to rank for "January 19". One solution is to make sure that phrase appears in our META description for the relevant page. If Google can find the matching copy in your description, they're more likely to use the tag as is. It's also just a good exercise – figuring out what your core target keywords are and targeting them naturally in your META description (don't just make it a list of keywords, of course) will help you focus your overall on-page SEO efforts."
https://moz.rankious.com/_moz/blog/why-wont-google-use-my-meta-description

And i didn't see GlobeCar in your meta description. That's why on one keyword Google didn't display your meta description and show something from code that contain GlobeCar. Also in title you have "Globe Auto", domain is different and this will confuse user so they didn't display original description.

I forgot also this one:
https://support.google.com/webmasters/answer/35624?hl=en
"Google will sometimes use the meta description of a page in search results snippets, if we think it gives users a more accurate description than would be possible purely from the on-page content."
seems that they think that your description is different than on-page content.

Here is it:
https://www.seroundtable.com/google-priority-change-frequency-xml-sitemap-20273.html

Just as John Mueller suggest you should use lastmod attribute to indicate change http://www.sitemaps.org/protocol.html and then you can do sitemap ping to Google for reindexing. This is easy http://www.google.com/webmasters/sitemaps/ping?sitemap=URLOFSITEMAP.xml and it's allowed https://support.google.com/webmasters/answer/183669?hl=en