This document discusses checking Google indexing status at scale using Node.js. It begins by explaining why it is important to know a website's indexing status, as unindexed pages will not appear in search results and Google evaluates site quality based on indexed pages. However, extracting this data is challenging as Googlebot's crawling does not determine indexing. The document then demonstrates a live demo of a Node.js script that can check indexing status for thousands of URLs at once, overcoming limitations of other methods. Finally, potential uses of the data are presented, such as sitemap health checks and log file analysis to identify non-canonical or erroneously indexed pages and inform SEO strategy.

1. Checking Google Index status at scale with Node.js
Checking
Google Index status
at scale with Node.js
Jose Luis Hernando
@jlhernando #BrightonSEO
Senior Technical SEO Consultant

2. Checking Google Index status at scale with Node.js
Today’s agenda
1. Why it’s important to know your website’s indexing status
2. The challenge to extract this data
3. Getting the data with Node.js – Live Demo!
4. Using this data for your SEO strategy

3. Checking Google Index status at scale with Node.js
Why is it important?
Reason #1
Not in the Index => Not in the SERPs
Icons from Google, Flaticon & Sitecheckerpro

4. Checking Google Index status at scale with Node.js
Why is it important?
Reason #2
Google evaluates site quality based on indexed pages
Sources:
Google Only Can Judge Site Quality Based On Pages They Index – Barry Swartz (Search Engine Roundtable)
English Google Webmaster Central office-hours hangout – Google Webmasters YouTube Channel
Low Quality Pages
Uncontrolled Faceted Navigation URLs
Unsupervised User Generated Content
Indexable Non-Canonical URLs
High Quality Pages
Category Pages
Editorial Pages
Canonical Product Pages
+

5. Checking Google Index status at scale with Node.js
Why is it important?
Reason #3
Inefficient use of Google’s resources
https://website.com/category-one/
HTML CSS JS
/category-one/?color=red
/category-one/?color=blue
/category-one/?color=red&blue
…
∞

6. Checking Google Index status at scale with Node.js
71.7%
54.3%
41.7%
34.4%
45.3%
30.2%
15.1%
10.1%
1-10k
10k-100k
100k-1M
1M+
Avg. Crawl Ratio (%) Avg. Active Ratio (%)
Source: How Does Google Crawl the Web? – (Annabelle Bouard & Dimitri Brunel – Botify)
Crawl Ratio
Percentage of pages
crawled by Google in 30 days
Active Ratio
Percentage of pages that
have generated at least
one organic visit in 30 days.
How much of your site is Googlebot crawling?

7. Checking Google Index status at scale with Node.js
The challenge
to extract this data
• Googlebot’s crawling behaviour
doesn’t determine indexing status

8. Checking Google Index status at scale with Node.js
The challenge:
extracting this data
• Googlebot’s crawling behaviour
doesn’t determine indexing status
• You rely on partial and sometimes
inaccurate data points:
• site: & inurl: operators
• GSC Indexing reports:
• URL Inspection Tool (< 200 URLs /day)
• Coverage Reports (< 1,000 rows / report)

9. Checking Google Index status at scale with Node.js
Proxy metrics != Accurate data

10. Checking Google Index status at scale with Node.js
If you can’t find it, build it

11. Checking Google Index status at scale with Node.js
{Live demo}
bit.ly/google-index-checker-script

12. Checking Google Index status at scale with Node.js
Using the following method
goes against Google’s Terms of Service
as it automatically requests search queries from Google Search
Quick FYI

13. Checking Google Index status at scale with Node.js
Our script outperforms every other method available

14. Checking Google Index status at scale with Node.js
How can you use Google index data?
Identify inefficient use of
crawl budget
Error Prioritisation
Identify holes
in your architecture
Check for pages from your
site that should be indexed
but are not.
Find pages that should not
be indexed but are indexed.
Detect pages that used to
exist and now return an error
(4xx) but are still indexed.

15. Checking Google Index status at scale with Node.js
Use case #1
Sitemap Health Check
How many URLs from your XML sitemap are
indexed?
• 200 Status Code – 81,688
Inspired by Data Secrets of the Index Coverage Report – AJ Kohn
Sitemaps = 111,772 URLs
80% Indexed 74,223
7,465
Google Index Status of 2xx URLs
from Sitemap
Indexed Not Indexed

16. Checking Google Index status at scale with Node.js
Use case #1
Sitemap Health Check
How many URLs from your XML sitemap are
indexed?
• 200 Status Code – 81,688
• 404 Status Code – 29,969
Inspired by Data Secrets of the Index Coverage Report – AJ Kohn
Sitemaps = 111,772 URLs
80% Indexed
21% Indexed
6,268
23,701
Google Index Status of 4xx URLs
from Sitemap
Indexed Not Indexed

17. Checking Google Index status at scale with Node.js
Use case #1
Sitemap Health Check
How many URLs from your XML sitemap are
indexed?
• 200 Status Code – 81,688
• 404 Status Code – 29,969
• 301 Status Code – 365
Inspired by Data Secrets of the Index Coverage Report – AJ Kohn
Sitemaps = 111,772 URLs
80% Indexed
21% Indexed
4% Indexed
16 349
Google Index Status of 3xx URLs
from Sitemap
Indexed Not Indexed

18. Checking Google Index status at scale with Node.js
Sitemap Health Check
Next Steps
1) Identify if these URLs are important to your site’s bottom line
2) Check if a pool of these URLs have issues on GSC’s
Index Coverage Report
3) Choose a tactic to improve the visibility of these URLs
4) Isolate the relevant URLs and modify the existing sitemap or create a
new-sitemap.xml to monitor progress

19. Checking Google Index status at scale with Node.js
Use case #2
Log File Analysis Plus+
How many URLs with Googlebot hits are
indexed?
• ~160k Googlebot hits to non-canonical URLs
(/Uppercase/ vs /lowercase/)
• Identified if non-canonical URLs were indexed
• Identified if the referenced canonical URLs
were indexed
35.8%
64.2%
Indexed Non-Canonical URLs
Requested by Googlebot
Indexed Not Indexed
Undisclosed Client

20. Checking Google Index status at scale with Node.js
Log File Analysis+
Next Steps
1) Identify if the canonical tag is correctly placed
2) Identify if the root cause is internal linking, external linking or other
3) Consider redirecting non-canonical URLs to canonical URLs
4) Create a new-sitemap.xml with problematic URLs to encourage
Googlebot revisiting those URLs and for monitoring purposes

21. Checking Google Index status at scale with Node.js
• Check Real-time indexing (News sites, Offer sites, Job Boards)
• Check uncontrolled faceted navigation (Crawl budget optimisation)
• Check inactive product/category URLs – (Site architecture
improvements)
• Check old 4xx that are live now & haven't been deindexed yet
(Recover organic opportunities)
Other use cases
Inform your SEO strategy

22. Checking Google Index status at scale with Node.js
Further reading
https://bit.ly/google-index-checks

23. Checking Google Index status at scale with Node.js
Further reading
https://bit.ly/gsc-index-coverage

24. Checking Google Index status at scale with Node.js
The Google Index Checker script has opened a door
to get useful, actionable data at scale for your sites
Use it, and act on it.

25. Checking Google Index status at scale with Node.js
Thank you.
builtvisible.com
Jose Luis Hernando
Senior Technical SEO Consultant
@jlhernando

26. Checking Google Index status at scale with Node.js
How does Google crawl the web – Annabelle Bouard & Dimitri Brunel (Botify)
English Google Webmaster Central office-hours hangout – Google Webmasters YouTube Channel
Google Only Can Judge Site Quality Based On Pages They Index – Barry Swartz (Search Engine Roundtable)
Data Secrets of the Index Coverage Report - Blind Five Year Old (AJ Kohn)
How Google Search Works – Google Documentation
How Search organises information – Google Documentation
Our new search index: Caffeine - Carrie Grimes
When indexing goes wrong: how Google Search recovered from indexing issues & lessons learned since -
Vincent Courson, Google Search Outreach
How Search Engines Work: Crawling, Indexing & Ranking – Moz
(Please) Stop Using Unsafe Characters in URLs – Jeff Starr
Sources & additional reading