shouldiuse.io

VERDICT

Should I use Thirdpartyweb?

Visualizations of third-party script impact across the web - thirdpartyweb.today

Worth it. A free, well-cited reference for judging third-party script impact — any web performance team should bookmark it. Skip it if you need live monitoring, support, or vendor accountability; it's one author's open-source project.

Confidence

Medium. Based on ~30 public sources; no independent user reviews found.

Ratings

  • Value for money
  • Ease of use
  • Feature depth
  • Support qualityNo support information in sources
  • Security posture

Pricing

$0

Free

ModelNot disclosed
Monthly feesNot disclosed
HardwareNot disclosed
Free tierYes

Best for

  • Performance engineers vetting third-party tags
  • Vendor selection research
  • Core Web Vitals budgeting
  • Researchers citing script impact data

Not for

  • Teams needing live monitoring of their own site
  • Non-technical buyers wanting dashboards and support
  • Privacy or compliance audits of your own pages
  • Anyone expecting SLAs or vendor accountability

Gotchas - check before you buy

medium

Not a product: no SLA, support, or update guarantees; effectively one maintainer.

medium

Vendors cite its rankings in marketing; numbers may be dated or cherry-picked.

low

Guess: dataset reflects periodic crawls, so newest tags may lag reality.

Pros and cons

Pros

  • Completely free and open-source
  • Cited by Chrome DevRel, Web Almanac, and Akamai
  • Treemaps, per-page impact metrics, and entity search
  • Independent enough that competing vendors cite it
  • Used in peer-reviewed academic research

Cons

  • Aggregate web-wide data, not monitoring of your pages
  • Open-source side project; no vendor, support, or SLA
  • Security posture of the repo scores poorly, per Linux Foundation
  • Guess: developer-oriented; marketers get no hand-holding

Sources & method

Analyzed 9/26/2026 - 9 sources - No known vulnerabilities found in the sources reviewed.

official x3review x1security x1news x4

Key stats

  • Value for money: 5/5

    Rating

  • $0

    Starting price

  • 9

    Sources

  • Analyzed

  • Value for money: 5/5. Free and open source
  • Ease of use: 4/5. Web UI with treemaps and entity search
  • Feature depth: 3/5. Aggregate web-wide data and visualizations only
  • Support quality. No support information in sources
  • Security posture: 2/5. Linux Foundation flags weak security posture
  • Free Price Open-source project
  • 2019 First public coverage Gigazine review, June 2019
  • 57% Third-party JS share Of JS execution, per its analysis
  • Chrome, Web Almanac, Akamai Notable citations Vendor and research references

Pricing

Free

$0

  • Web visualizations
  • Entity data tables
  • npm dataset

Security

No known vulnerabilities found in the sources reviewed.

What users say

No independent user reviews found; usage evidence comes from vendor blogs, Chrome DevRel, and academic citations.

Companies that use it

  • Google Chrome team⁴
  • Akamai⁷
  • AB Tasty
  • Kameleoon
  • Wingify (VWO)
Full analysis

Based on ~30 public sources; no independent user reviews found.

Free open-source data on third-party script bloat. Great reference, zero support. Vet tags with it; don't monitor with it.

Methodology

Based on ~30 public sources; no independent user reviews found.

Sources

  1. Third-Party Web: Datathirdpartyweb.today
    official
  2. patrickhulce/third-party-web on GitHubgithub.com
    official
  3. About thirdpartyweb.todaythirdpartyweb.today
    official
  4. Can browsers optimize the loading of third-party resources? (Chrome)developer.chrome.com
    news
  5. Web Almanac 2020 Mobile Webalmanac.httparchive.org
    news
  6. Gigazine coverage, June 2019gigazine.net
    news
  7. Akamai: Metrics That Matterakamai.com
    news
  8. Linux Foundation Insights project healthinsights.linuxfoundation.org
    security
  9. WRAP academic paper citing the datasetwrap.warwick.ac.uk
    review

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