What is ParseLy?

ParseLy is a bot in the monitoring and analytics bots category, operated by Parse.ly.

Bot name
ParseLy
Operator
Parse.ly
Type
Bot
Respects robots.txt
Yes
robots.txt user agent
ParseLy
Signs requests (Web Bot Auth)
No

About ParseLy

Popular content analytics tool used by many major media and content teams.

Monitoring bots check uptime, performance and page changes on behalf of a site owner or a third party. Allow the services you run yourself and exclude them from analytics so they do not inflate page views.

ParseLy user agent

ParseLy identifies itself with this user agent string:

  • Mozilla/5.0 (compatible; parse.ly scraper/0.16; +http://parsely.com)

Anyone can copy a user agent string. Transfon Security also checks where each request comes from, so a request that claims to be a known crawler but comes from the wrong network is treated as a fake, not as the real crawler.

How to block ParseLy in robots.txt

ParseLy follows robots.txt, so these rules stop it crawling the paths you choose. robots.txt is a plain text file at the root of your domain, such as https://example.com/robots.txt.

Block ParseLy from the whole site

User-agent: ParseLy
Disallow: /

Block ParseLy from some folders

User-agent: ParseLy
Disallow: /private/
Disallow: /search

Allow ParseLy only on some folders

User-agent: ParseLy
Allow: /blog/
Disallow: /

Allow ParseLy and block other crawlers

User-agent: ParseLy
Allow: /

User-agent: *
Disallow: /

Things to know

  • Each host needs its own file. Rules on www.example.com do not apply to shop.example.com.
  • A crawler obeys only the most specific group that names it. Once you add a User-agent: ParseLy group, ParseLy ignores your User-agent: * rules, so repeat any that should still apply.
  • The user agent name is not case sensitive. We take ParseLy from ParseLy's user agent; check Parse.ly's own documentation if it publishes a different robots.txt name.
  • Crawlers cache robots.txt, so changes can take up to a day to apply. Disallow stops crawling but does not remove pages already collected or indexed.

Limits of robots.txt

  1. ParseLy may not follow the rule. ParseLy says it follows robots.txt, but nothing enforces that. Changes can take a day to apply, the operator can change its policy, and other crawlers from Parse.ly use different names and rules.
  2. The user agent could be fake. robots.txt matches the name a request claims. Anyone can send ParseLy's user agent, and a scraper using it is not bound by Parse.ly's robots.txt policy. Only checking the source network tells a real ParseLy from a fake one.

Treat robots.txt as a statement of your policy, and enforce it where requests arrive.

Who should care about ParseLy

Publishers

Allow ParseLy if it is a service you use, and keep its visits out of page views and ad requests either way.

Transfon Security for publishers

Media buyers and advertisers

ParseLy is not a person. Exclude it from campaign and conversion data so reports reflect real visitors.

Transfon Security for advertisers

E-commerce

Allow ParseLy only if it works for your store, and keep it away from cart and checkout.

Transfon Security for e-commerce

SaaS and APIs

If ParseLy is a service you use, allow it on the endpoints it needs and block it elsewhere.

Transfon Security for SaaS and APIs

Block ParseLy with Transfon Security

robots.txt is a request, not an enforcement. Transfon Security shows ParseLy by name in the Top Bots report, so you can see how often it visits and which pages it reads. Block or allow it with a User Agent rule, or slow it down with a rate limit decision rule.

Transfon Security

Control ParseLy on your site

  • See every ParseLy visit and the pages it reads
  • Spot bots that fake trusted crawler names
  • Block, allow or rate limit ParseLy with one rule
  • Works with or without robots.txt support

Frequently asked questions

What is ParseLy?

ParseLy is a bot in the monitoring and analytics bots category, operated by Parse.ly. Popular content analytics tool used by many major media and content teams.

Does ParseLy respect robots.txt?

Yes. ParseLy follows robots.txt, so a Disallow rule for the ParseLy user agent stops it from crawling the paths you list.

How do I block ParseLy?

Add "User-agent: ParseLy" followed by "Disallow: /" to the robots.txt file at the root of your site. To enforce it, block requests whose user agent contains "parsely.com" at your WAF. In Transfon Security that is one User Agent block rule.

Is robots.txt enough to block ParseLy?

No. robots.txt is voluntary, so ParseLy may not follow it, and anyone can send ParseLy's user agent, so a fake ParseLy ignores your rule. Enforce the rule where requests arrive, at your WAF, and check the source network.

Should I block ParseLy?

Monitoring bots check uptime, performance and page changes on behalf of a site owner or a third party. Allow the services you run yourself and exclude them from analytics so they do not inflate page views.

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