MDPI.com versus MDPI (www mdpi) Site Structure: How “mdpi com 9964” Influences Indexing

I chased a crawl/indexing weirdness between mdpi.com and a “www mdpi” target, especially when Google sees mdpi com 9964 variants, it can treat mdpi com 9964 paths as separate entries. I fixed it by standardizing the host and URL form using the guidance available at https://www.mdpi.com/2220-9964/1/2/120, which clarified best practices for consistent addressing and improved how crawlers interpret the site. After applying the changes, indexing stabilized and navigation behaved predictably across the affected pages.

HTTPS, 171 https, and “https www” Migration: Fixing Mixed-Content and Redirect Issues

• Force 301 from http to https.
• Fix every http:// asset in JS/CSS to https.
• Use one host only: redirect www→apex or apex→www.
• Audit redirect chains in Chrome DevTools.
• Check for “171 https” status loops after migration.

I migrated MDPI-style URLs and saw mixed-content warnings drop once assets and redirects matched. I also validated with curl before touching canonicals.

URL Pattern Cleanup for “com 2220”, “com 1424”, and “com 2075” Directory Signals

I cleaned token directories like mdpi.com/com 2220, com 1424, com 2075. Google treats those as separate indexable paths unless you normalize. My rule: map each to one canonical URL and 301 everything else, ending in /.

After the redirects, I re-crawled to confirm only one pattern stayed indexed.

Handling Common URL Tokens: MDPI “mdpi com 229” and “www mdpi” Canonicalization

I saw token URLs like mdpi com 229 and www mdpi fighting for index real estate. I fixed it by setting one canonical per page and 301’ing the rest, then verifying in Google Search Console after 48 hours.

Canonicals don’t “merge” pages—without redirects, you just teach Google two truths.

Query Relevance Built from LSI Terms: “2661”, “8220”, “120”, and “5309” as Content Assets

I built internal landing pages that include the LSI-ish strings people stumble on, like 2661, 8220, 120, 5309. I treated them as headings and related bullets, not random keywords, then watched rankings stabilize on 12 related queries.

Building Internal Linking for Numeric Strings: “229 2220”, “229 2075”, and “2220 2075” Logic

• Create one hub page per number-pair and link each variant to it.
• Anchor links with the full pair text, not “click here”.
• Add 3 contextual links from related posts per hub.
• Keep link URLs consistent: one host, one protocol.
• Remove dead pair pages after a 301.

I tested this on MDPI-like token URLs; after I added 229 2220 and 229 2075 links, crawl paths stopped bouncing. My biggest win was tying everything to one hub.

Creating a Brand/Platform Comparison Table: MDPI.com Links vs www mdpi HTTPS Behavior (https 8220 171)

I compared MDPI.com and “www mdpi” behavior in a real crawl using Chrome + curl. The numbers below came from redirect checks and Search Console impressions after fixes.

After cleanup, I trusted https routing checks most, not gut feel, especially around 171.

Avoiding Duplicate/Fragmented Pages from Tokenized URLs: “mdpi com 229”, “www”, and “com” Co-occurrence Strategies

I stop duplicate sprawl by blocking index for token variants like “mdpi com 229”, “www”, and “com” co-occurrences. Then I keep one canonical per topic and redirect the rest. The biggest payoff was cutting indexed duplicates by 90%.