Last updated on November 2nd, 2026 at 06:23 pm
Robots.txt Checker
By Digital Mansoor · 12+ years in SEO
Paste your robots.txt, pick a bot and a URL. See whether it is allowed, which rule decided it, and any syntax problems.
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- Tests pasted URLs against your robots.txt for the bots you choose.
- Shows allowed or blocked per bot, with the matching rule.
- Counts groups, sitemaps and blocked checks.
- Free, no signup, and nothing leaves your browser. It tests the text you paste, not your live file.
What is the Robots.txt Checker?
The Robots.txt Checker reads your robots.txt rules and tells you whether each URL would be allowed or blocked for each user agent, and which rule decided it.
It is built for SEO consultants and site owners who edit robots.txt and want to test changes before uploading.
How to use the free Robots.txt Checker
- Paste your robots.txt: Use the full file.
- List URLs to test: One per line.
- Choose bots: For example Googlebot, Bingbot, GPTBot.
- Run the check: Read the table.
- Fix the file: Edit the rules and retest.
Example: input and output
A WordPress robots.txt that blocks GPTBot.
Results shown are from the live tool.
How the Robots.txt Checker helps your SEO work
- Test rule changes before they go live.
- See which rule blocks a URL.
- Check AI bot rules next to search bots.
- Avoid blocking important pages by mistake.
- Explain a robots.txt problem to a client.
Robots.txt Checker compared with other free tools
I compared this with the robots.txt tester on seranking.com, read from its page on 22 October 2026.
| Check | This tool | seranking.com |
|---|---|---|
| Source of the rules | Text you paste | The site’s robots.txt, by URL, per the page |
| URLs per run | As many as you paste | Up to 100, per the page |
| Free limit | No cap | 5 checks per day |
| Bots | Googlebot, Bingbot, GPTBot and others you list | All bots, Googlebot, Bingbot, GPTBot and others |
| Shows the deciding rule | Yes | Not mentioned |
| Signup | None | Free trial offered after 5 checks |
Where they are ahead: seranking.com tests the live robots.txt. This tool tests text you paste, so you can test a change before it goes live.
Compared on 22 October 2026 by opening each tool and reading its page. Features can change.
What the Robots.txt Checker cannot do
- Robots.txt controls crawling, not indexing. A blocked URL can still appear in results if other sites link to it.
- Use noindex on a crawlable page to keep it out of results.
- Different crawlers can read edge cases in different ways. Google’s own tools are the reference.
- It tests pasted text and does not fetch your live file.
- Blocking AI bots only works for crawlers that respect robots.txt.
Is my text or data sent anywhere?
Your robots.txt is processed in your browser and is not sent to this site or any other server. The Save button keeps snapshots in your own browser storage. The share link puts your input in the part of the URL after the # sign, which browsers do not send to servers, but anyone you give the link to can read it.
Robots.txt Checker FAQ
What does a robots.txt file do?
It tells crawlers which paths they may or may not crawl.
Does robots.txt remove a page from Google?
No. It controls crawling. Use noindex on a crawlable page.
How do I test if a URL is blocked?
Paste your file and the URL, choose a bot and read the result.
Can I test GPTBot?
Yes. Add GPTBot to the bots list.
Does the tool fetch my live robots.txt?
No. Paste the text.
Does it use AI?
No. It uses rule matching in your browser.
Is the Robots.txt Checker free?
Yes, it is free and needs no signup.
Want this done for your site?
Send your URL on WhatsApp and I will tell you what to fix first.
Need more than a free tool? See my technical SEO consulting and on-page SEO consulting work.
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