Trade Union Website League Table 2025
I have completed my latest annual review of trade union websites and compiled the updated league table for 2025.
Previous results are available for 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013 and 2012.
The 2025 league table ranks the Domain Authority of websites belonging to TUC-affiliated trade unions. Domain Authority remains a widely used benchmark for gauging the online influence and backlink strength of a website.
It measures factors such as the volume, relevance, and quality of inbound links across the web and social media. Notably, backlinks from high-authority sources, like prominent news outlets or academic platforms, significantly impact the score.
It’s worth highlighting that Domain Authority does not reflect visual design quality, navigational structure, or content usability. This metric is intended primarily as an SEO indicator—estimating how likely a site is to rank well on search engines.
| No | Union | Domain Authority |
|---|---|---|
| 1 (1) | BDA | 69 |
| 2 (2) | Unite | 66 |
| 3 (2) | NEU | 65 |
| 4 (4) | Chartered Society of Physiotherapy | 63 |
| 5 (5) | UNISON | 62 |
| 6 (7) | RCM | 61 |
| 6 (5) | UCU | 61 |
| 8 (9) | GMB | 60 |
| 8 (7) | NUJ | 60 |
| 10 (10) | Equity | 59 |
| 10 (10) | PFA | 59 |
| 12 (12) | RMT | 58 |
| 13 (14) | NASUWT | 57 |
| 13 (12) | PCS | 57 |
| 15 (16) | BECTU (Section of Prospect) | 56 |
| 15 (14) | Musicians’ Union | 56 |
| 17 (16) | BALPA | 55 |
| 18 (18) | CWU | 54 |
| 18 (19) | Prospect | 54 |
| 20 (20) | NAHT | 53 |
| 20 (20) | The Writers’ Guild of Great Britain | 53 |
| 22 (23) | FBU | 52 |
| 22 (20) | TSSA | 52 |
| 24 (23) | Society of Radiographers | 51 |
| 24 (23) | USDAW | 51 |
| 26 (26) | ASLEF | 50 |
| 27 (28) | Royal College of Podiatry | 49 |
| 28 (28) | Community | 48 |
| 29 (28) | EIS | 47 |
| 29 (27) | Nautilus | 47 |
| 31 (32) | BFAWU | 46 |
| 31 (28) | NSEAD | 46 |
| 33 (33) | FDA | 45 |
| 33 (33) | NAPO | 45 |
| 35 (35) | POA | 42 |
| 36 (36) | AEP | 40 |
| 36 (39) | British and Irish Orthoptic Society | 40 |
| 36 (36) | HCSA | 40 |
| 36 (36) | NUM | 40 |
| 40 (39) | Artists' Union England | 39 |
| 41 (41) | Accord | 32 |
| 42 (42) | URTU | 28 |
| 43 (43) | UCAC | 27 |
| 44 (44) | NGSU | 23 |
| 45 (45) | NARS | 21 |
| 46 (46) | Advance | 17 |
| 47 (47) | Aegis | 12 |
Source: Moz.com July 2025.
For the seventh consecutive year, the British Dietetic Association (BDA) tops the league table—an impressive feat for a specialist union with a modest membership.
Unite remains in second place, while the National Education Union (NEU) slips one spot to third. The Chartered Society of Physiotherapy (CSP) holds steady at fourth, with UNISON remaining just in the top five. UCU and the Royal College of Midwives (RCM) now share sixth place, followed by GMB, NUJ, Equity and PFA (joint 10th) rounding out the top ten.
Biggest risers
While no unions saw dramatic leaps in 2025, the British and Irish Orthoptic Society jumped 3 spaces from 39th to 36th. In reality, this is on a back of a modest upgrade in Domain Authority. Other increases were even smaller, with several unions shuffling up one space.
Biggest falls
The National Society for Education in Art and Design dropped three places, while both Nautilus and the TSSA slipped two. These movements reflect a small changes in Domain Authority and linking activity across the year.
If you spot an anomaly or want to discuss trends in union web visibility, feel free to leave a comment below.