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Everything Eli said is spot on. Optimize your on-page and create compelling and valuable content on a regular basis focused on your customers/prospects and the links and PA/DA will follow.

This error can occur if you are blocking  the bot trying to index your site. What is interesting , it's only for that page. Did you check your robots.txt file or .htaccess file?

Outside of the ordinary on-page SEO, focus on speed and responsiveness. I would look at putting your site in https://www.webpagetest.org/ and see if you can prioritize scripts and optimize images.  Also, run it through Chrome Dev Tools (F12) and play around. One example is look at the mobile view in there. Is the mobile page to long? Does it need different  a different CTA? Where can you use media queries to hide and etc.? Good luck!

It depends. If the drop down uses ajax or related technology, it may be difficult for the spider to parse and may not be indexed. In most cases, yes it will be indexed. I guess we need to understand how the click has been implemented.

The page looks great but is relatively new. Give it some time,  get some inbound links and add content on regular basis.  Also, query  "What Eats A Squirrels" and look at the results.  The bioexplorer.net has a great landing page for this query. and look for something that they are and are not doing. Good luck.

Google is good at understanding the relationship between sub/primaries via linking and etc.  and some of the issues may be more of server response time for the sub and etc.

I agree w/Ross--I prefer directories. However, if the structure has been around a while and migration is difficult,  I don't see a huge benefit in migrating. Also, I believe there are some ways to use .htaccess that you can rewrite a subdomain to the directory.

See this video from Google's John Mueller for more information.

Yeah, second that. Remember DA is not Google. If a gig is offered for this service and seems to be to easy/sleazy or doesn't make sense, not worth doing.

Understand your point--I'm sure MOZ will continually update DA and close up the loopholes.

No, there isn't an issue with Google when you consolidate 2 sites into one. There is a slight erosion in link equity via 301, but it's nominal. Just make sure the old/new landing pages are closely related and you will be fine.

I know its nerve-racking, but make sure you do yourpyour work and fix any issues after implementation.

When you go live, I typically type site:nameofsite.com in google and click on the legacy link and make sure the old domain goes to the correct page on new site.

I agree with Joseph.  The key to 301's redirects is to redirect to a landing page that is "closely" related. If there is no closely related page, best 404 as the user (as Joseph says) may feel cheated with the 301 and bounce.  Also, a blanket 301 to a homepage is rarely a good idea.  Yes, Google has no issue w/a 301 that is closely related. Good luck!

Yes, still valuable but less valuable than unhidden ("importnat content").  If the hidden content is an extension of your core/important content, no worries.  Do what is best for the user even if you have a  concern with drilling down for additional info. This is from G's website Guidelines:

"Make your site's important content visible by default. Google is able to crawl HTML content hidden inside navigational elements such as tabs or expanding sections, however we consider this content less accessible to users, and believe that you should make your most important information visible in the default page view."

**Also, although I would also be curious to know if a subdomain inherits DA from the main domain, it probably doesn't need to be a part of the decision making process for choosing between subdomain and subfolder.  **

I know that the sub & parent share the same DA. I was under the impression that one doesn't necessarily inherit the other DA, just an accumulation of the "strength" calculated by Moz of the domain shared between the parent & subs.

I don't see a way of doing this accurately. With organic rank fluctuations, seasonality, competition it's near impossible to "hold" a position. However, if you have a position in serps for a specific keyword with little fluctuation and get decent traffic you can establish this as your baseline.  Once the title is updated and appears in the serps, begin monitoring w/search console, analytics or etc. and see if you see any decent jumps.  Some links for additional information: Finding the ROI of Title tag changes using Google's CausalImpact R package,  SEO Split Testing & A Beginner’s Guide to A/B Testing: Effective SEO Landing Pages. Would love to hear if anyone else has a better way.

According to Google’s John Mueller "No".  However, users  bouncing because of them may be a negative SEO factor (even if the videos are muted).  Some site rank high with a high bounce rate (ie - blogs). Other issues involved could be load time, accessibility and etc. I would run an a/b test with session recording and let the users decide. Good luck!

As you know, PPC is a great way to get a quick boost. If you are looking for strictly organic, do research on some mid & long tails. Less competitive and can quickly get high in organics.  Good luck!

Mazen is right. Typically take a few weeks. Makes sure you annotate the date on your analytics account when you upload and monitor.  Good luck and be patient.

Use those funds to create compelling & valuable content (blog articles, videos & etc.). Also, if you need to buy relevant traffic, setup and optimized ppc.  Gym Equipment is heavily competitive, so I would focus on mid & long-tail terms and track to see what converts.  Good luck!

It always seems to be buggy. Specifically, some users with more points are below others with less. I also clicked on some users that were high with zero. Once you clicked on them, you could see thay had points.  See attached.

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Not sure. Your robots.txt file looks fine & shouldn't be blocking anything except for admin:

User-agent: *
Disallow: /wp-admin/
Allow: /wp-admin/admin-ajax.php

sitemap: https://www.myqurantutor.com/sitemap_index.xml

Keep it for a short-time in case something was overlooked.  I also like to keep the 301's in place for the reason that there maybe an external site linking to the .html pages. If the 301's are not in place, these links will 404. Good luck!