200 Top SEO Ranking Factors May 2025

TOP SEO Factors for 2025-05 previous

Top SEO Factor data is updated daily for latest "month to date" measurements.

	Name	Correlation	#1 Max	Page 1 Avg	Usage %	Searches %
1	Number of Unique Variations Used Diversity	-0.28	33	7	77 %	89 %
2	Number of Unique LSI Words Used Diversity	-0.25	1018	289	83 %	79 %
3	Number of Top 100 Shared Factors Used Diversity	-0.25	39	29	95 %	92 %
4	Number of Top 200 Shared Factors Used Diversity	-0.25	52	39	95 %	93 %
5	Entities in Title Tag Relevancy	-0.24	8	3	64 %	89 %
6	Number of Top 50 Shared Factors Used Diversity	-0.24	17	12	94 %	90 %
7	Variations in Search Result Link Text Relevancy	-0.24	14	2	73 %	84 %
8	Variations in Search Result Display URL Relevancy	-0.24	14	2	73 %	85 %
9	Number of Distinct Entities Used Diversity	-0.24	67	26	74 %	92 %
10	Variations in Body Tags Relevancy	-0.23	156621	821	75 %	91 %
11	Search Result Domain is .com, .net, or .org Other	-0.23	1	1	5 %	74 %
12	Variations in H1 and H2 Tags Relevancy	-0.23	165	4	60 %	89 %
13	Variations in HTML Tags Relevancy	-0.23	156621	812	75 %	92 %
14	Variations in the Title Tag Relevancy	-0.23	19	2	62 %	85 %
15	Variations in H1, H2, and H3 Tags Relevancy	-0.23	237	7	62 %	90 %
16	Search Result Domain is .com Other	-0.23	1	1	5 %	74 %
17	Load Time Milliseconds Performance	-0.23	29023	1761	83 %	92 %
18	Variations in Sentences Relevancy	-0.23	3790	45	68 %	92 %
19	Variations in Div Tags Relevancy	-0.23	35415	249	71 %	90 %
20	Variations in H1-H6 Tags Relevancy	-0.23	251	8	64 %	89 %
21	Clean Keyword Density in the HTML Tag Relevancy	-0.22	189	4	67 %	82 %
22	Variations in P Tags Relevancy	-0.22	6005	53	66 %	92 %
23	Number of Factors Used Diversity	-0.22	301	177	95 %	89 %
24	Term Frequency Relevancy	-0.22	6	3	75 %	91 %
25	Variations in H1 Tags Relevancy	-0.21	56	1	51 %	85 %
26	Variations in Search Result Document File Name Relevancy	-0.2	13	1	41 %	82 %
27	Variations in H2 Tags Relevancy	-0.2	110	4	45 %	88 %
28	Variations in Meta Description Relevancy	-0.2	95	2	52 %	85 %
29	Variations in Search Result URL Relevancy	-0.2	24	2	49 %	80 %
30	Variations in Search Result URL Path Relevancy	-0.2	15	1	43 %	84 %
31	Variation Density in Top 30KB Relevancy	-0.2	349	3	56 %	82 %
32	Entities in the HTML Tag Relevancy	-0.2	661	127	70 %	94 %
33	Variation Count in Top 30KB Relevancy	-0.2	5657	52	64 %	85 %
34	Entities in Sentences Relevancy	-0.2	657	124	68 %	94 %
35	Variations in First 100 Words Relevancy	-0.2	188	7	61 %	86 %
36	Entities in H1 Tags	-0.2	6	2	53 %	88 %
37	Leading Variations in H1-H6 Tags Relevancy	-0.2	25	2	43 %	88 %
38	Variations in LI Tags Relevancy	-0.2	4915	31	64 %	90 %
39	Exact Matches in the HTML Tag Relevancy	-0.19	323	10	29 %	89 %
40	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.19	19	2	41 %	87 %
41	Variations in A Tags Relevancy	-0.19	4405	50	64 %	89 %
42	Variations in the Canonical URL Relevancy	-0.19	67	2	46 %	84 %
43	Entities in H2 Tags	-0.19	38	6	51 %	91 %
44	LSI Words in Title Tag Relevancy	-0.19	14	5	63 %	93 %
45	Variations in OpenGraph Title Relevancy	-0.19	14	1	50 %	81 %
46	TF/IDF Relevancy	-0.19	1	1	53 %	86 %
47	Variations in OpenGraph Description Relevancy	-0.18	139	2	46 %	85 %
48	Variations in ALT Attributes Relevancy	-0.18	285	7	45 %	84 %
49	Leading Variations in Title Tag Relevancy	-0.18	1	1	30 %	84 %
50	Entities in Meta Description Tag Relevancy	-0.18	8	3	55 %	87 %
51	Number of Referring Domains Authority	-0.18	1687	37	43 %	38 %
52	Variations in Script Tags Relevancy	-0.18	72558	237	59 %	90 %
53	Number of Includes Technology	-0.18	64	27	80 %	80 %
54	Variations in Span Tags Relevancy	-0.18	1167	13	49 %	89 %
55	Variations in Absolute URLs Relevancy	-0.18	7234	77	57 %	89 %
56	Leading Variations in H1 Tags Relevancy	-0.17	3	1	26 %	84 %
57	Search Result Number of Dirs in Path Other	-0.17	4	2	70 %	75 %
58	Number of Do Follow Backlinks Authority	-0.17	103552	2496	38 %	38 %
59	Variations in A Tag HREF Attributes Relevancy	-0.17	3430	46	57 %	89 %
60	Number of Backlinks Authority	-0.17	149098	4447	43 %	40 %
61	Variations in Distinct A Tag HREF Attributes Relevancy	-0.17	2317	31	57 %	90 %
62	Title Tag Has Entities Relevancy	-0.17	1	1	65 %	84 %
63	Entities in H3 Tags	-0.17	72	6	42 %	89 %
64	Has Entities in H1 Tags Relevancy	-0.17	1	1	54 %	82 %
65	LSI Words in Sentences Relevancy	-0.17	4374	660	63 %	94 %
66	Number of No Follow Backlinks Authority	-0.16	146318	1946	34 %	36 %
67	Number of Facebook Pages Authority	-0.16	42	2	62 %	78 %
68	Variations in Nav Tags Relevancy	-0.16	10809	68	45 %	83 %
69	Exact Matches in H1-H6 Tags Relevancy	-0.16	10	1	19 %	85 %
70	Variations in H3 Tags Relevancy	-0.16	72	3	32 %	85 %
71	Number of HTML Tags Size	-0.16	2934	1064	83 %	85 %
72	Number of CSS Includes Technology	-0.16	25	10	72 %	79 %
73	Number of P Tags Size	-0.16	225	40	79 %	83 %
74	Variations in Section Tags Relevancy	-0.16	1587	24	37 %	86 %
75	Unabridged Word Count Size	-0.16	83719	1907	83 %	86 %
76	Word Count Size	-0.16	83529	1541	83 %	86 %
77	Number of Images Size	-0.16	198	32	79 %	83 %
78	Exact Matches in Title Tag Relevancy	-0.16	2	1	17 %	83 %
79	Clean Text Kilobytes Size	-0.16	1215	13	79 %	86 %
80	Number of Sentences Size	-0.16	950	127	82 %	86 %
81	Exact Matches in Sentences Relevancy	-0.16	89	3	20 %	88 %
82	Variations in Main Tags Relevancy	-0.16	15470	94	35 %	86 %
83	Number of Instagram Pages Authority	-0.16	20	2	47 %	77 %
84	Number of Images with ALT Text Size	-0.16	193	22	75 %	84 %
85	Percentage of DoFollow Internal Links Authority	-0.16	94	74	79 %	82 %
86	Leading Variations in H2 Tags Relevancy	-0.15	7	1	21 %	83 %
87	Has JSON-LD Schema Markup Relevancy	-0.15	1	1	54 %	75 %
88	LSI Words in H1 Tags Relevancy	-0.15	13	4	55 %	92 %
89	Number of Questions Size	-0.15	111	11	65 %	84 %
90	Exact Matches in Top 30KB Relevancy	-0.15	20	2	17 %	82 %
91	Search Result URL Length Size	-0.15	101	63	93 %	57 %
92	LSI Words in Meta Description Tag Relevancy	-0.15	39	10	52 %	90 %
93	Percentage of DoFollow Links Authority	-0.15	99	85	80 %	85 %
94	Number of JavaScript Includes Technology	-0.15	46	18	80 %	81 %
95	Variations in TITLE Attributes Relevancy	-0.15	253	6	32 %	83 %
96	Number of Heading Tags Size	-0.15	107	22	79 %	82 %
97	Inline CSS Kilobytes Size	-0.15	236	65	65 %	84 %
98	Page Size Kilobytes Size	-0.15	1367	267	83 %	84 %
99	Variations in the last 100 words Relevancy	-0.15	185	4	44 %	83 %
100	Variations in Footer Tags Relevancy	-0.15	4462	24	33 %	84 %
101	Number of Questions In Headings Size	-0.15	13	2	35 %	84 %
102	Variations making whole H1, H2, and H3 Tags Relevancy	-0.15	2	1	14 %	80 %
103	Flesch Kincaid Reading Grade Level Other	-0.15	7	2	91 %	83 %
104	Number of Internal Links Authority	-0.15	482	132	80 %	79 %
105	Variations making whole H1-H6 Tags Relevancy	-0.15	2	1	15 %	81 %
106	Number of H2 Tags Size	-0.15	39	7	71 %	81 %
107	Number of DoFollow Links Authority	-0.15	477	143	80 %	80 %
108	Number of Absolute URLs Authority	-0.15	852	267	83 %	83 %
109	Number of Links Authority	-0.15	493	146	80 %	79 %
110	Number of HTTPS Links Authority	-0.15	493	144	80 %	79 %
111	Has Entities in H2 Tags Relevancy	-0.15	1	1	52 %	81 %
112	LSI Words in H2 Tags Relevancy	-0.14	136	19	54 %	92 %
113	Variations in Strong Tags Relevancy	-0.14	90	3	25 %	84 %
114	Number Of JSON-LD Types Relevancy	-0.14	176	14	57 %	84 %
115	Number of US Phone Numbers Trust	-0.14	636	11	46 %	81 %
116	Title Word Count Size	-0.14	25	8	81 %	73 %
117	Variations making whole A Tags Relevancy	-0.14	69	2	27 %	79 %
118	Variations Making Whole LI Tags Relevancy	-0.14	4	1	22 %	78 %
119	Search Result Host Length Size	-0.14	25	18	83 %	76 %
120	Title Length Size	-0.14	177	51	81 %	74 %
121	Search Result Domain Length Size	-0.14	25	18	83 %	77 %
122	Variations in Search Result Summary Relevancy	-0.14	52	2	72 %	65 %
123	Variations in I Tags Relevancy	-0.14	263	5	24 %	80 %
124	Number of Prices Size	-0.14	598	63	67 %	84 %
125	Has Canonical URL Authority	-0.14	1	1	71 %	74 %
126	Number of H1 Tags Size	-0.14	4	2	73 %	80 %
127	Inline JavaScript Kilobytes Size	-0.14	495	74	80 %	81 %
128	Number of Facebook Accounts Authority	-0.14	3	1	31 %	73 %
129	Number of Social Pages Authority	-0.14	81	5	67 %	76 %
130	Word Count in Meta Description Size	-0.14	83	20	66 %	75 %
131	Number of H3 Tags Size	-0.14	87	9	62 %	80 %
132	Search Result Uses HTTPS Other	-0.14	1	1	82 %	79 %
133	Has Meta Viewport Technology	-0.14	1	1	81 %	78 %
134	Is Home Page Other	-0.14	1	1	18 %	38 %
135	Meta Description Tag Has Entities Relevancy	-0.14	1	1	55 %	78 %
136	Meta Description Length Size	-0.14	538	121	66 %	77 %
137	Variations in Meta Twitter Description Relevancy	-0.14	36	1	21 %	76 %
138	Entities in H4 Tags	-0.14	22	2	21 %	84 %
139	Number of Images without ALT Text Size	-0.14	59	11	60 %	80 %
140	Number of HTML Comments Size	-0.13	335	42	75 %	84 %
141	Number of Forms Technology	-0.13	17	2	55 %	74 %
142	Exact Matches in H1 Tags Relevancy	-0.13	1	1	13 %	82 %
143	Has US Phone Number Trust	-0.13	1	1	47 %	68 %
144	Number of DoFollow External Links Authority	-0.13	60	14	75 %	73 %
145	Variations making whole H1 Tags Relevancy	-0.13	1	1	9 %	80 %
146	Number of External Links Authority	-0.13	60	16	76 %	72 %
147	Number of LinkedIn Pages Authority	-0.13	20	1	28 %	69 %
148	Headings Has Question Other	-0.13	1	1	35 %	77 %
149	Has FavIcon Technology	-0.13	1	1	74 %	74 %
150	Number of Questions In H2 Tags Size	-0.13	6	1	22 %	77 %
151	Variations in H4-H6 Tags Relevancy	-0.13	66	2	18 %	78 %
152	Uses JSON-LD name Other	-0.13	1	1	53 %	71 %
153	Uses Schema pricecurrency Other	-0.13	1	1	6 %	43 %
154	Uses Schema aggregaterating Other	-0.13	1	1	11 %	57 %
155	Variations Making Whole Span Tags Relevancy	-0.13	12	1	18 %	83 %
156	Has Meta Charset Technology	-0.13	1	1	77 %	75 %
157	Has Meta Description Relevancy	-0.13	1	1	66 %	72 %
158	Uses JSON-LD priceCurrency Other	-0.13	1	1	6 %	44 %
159	Uses Schema name Other	-0.13	1	1	60 %	65 %
160	Variations in Meta Twitter Content Relevancy	-0.13	12	1	23 %	73 %
161	Uses JSON-LD Offer Other	-0.13	1	1	6 %	53 %
162	Uses Schema offer Other	-0.13	1	1	6 %	52 %
163	Number of Email Addresses Trust	-0.13	279	5	43 %	80 %
164	Uses JSON-LD url Other	-0.13	1	1	43 %	69 %
165	Variations in Article Tags Relevancy	-0.13	1348	12	22 %	74 %
166	Number of Questions In H3 Tags Size	-0.13	10	1	16 %	78 %
167	Uses JSON-LD ListItem Other	-0.13	1	1	34 %	68 %
168	Number of Social Accounts Authority	-0.13	5	2	48 %	72 %
169	Has Schema Markup Relevancy	-0.13	1	1	63 %	73 %
170	Has Entities in H3 Tags Relevancy	-0.13	1	1	42 %	80 %
171	Has Privacy Policy Trust	-0.13	1	1	55 %	69 %
172	Number of Twitter Accounts Authority	-0.13	3	1	30 %	66 %
173	Uses Schema listitem Other	-0.13	1	1	39 %	63 %
174	Leading Variations in H3 Tags Relevancy	-0.13	16	1	14 %	80 %
175	Has Form Technology	-0.13	1	1	53 %	69 %
176	Has Apple Touch Icon Technology	-0.13	1	1	51 %	67 %
177	Has Email Trust	-0.13	1	1	43 %	70 %
178	Number of Meta Generator Tags Technology	-0.13	2	1	37 %	64 %
179	Has Contact Page Trust	-0.13	1	1	65 %	69 %
180	Uses Schema product Other	-0.13	1	1	8 %	49 %
181	Uses JSON-LD Service Other	-0.13	1	1	6 %	35 %
182	Average Words Per Sentence Size	-0.13	259	34	80 %	73 %
183	Uses JSON-LD BreadcrumbList Other	-0.12	1	1	34 %	68 %
184	Uses JSON-LD AggregateRating Other	-0.12	1	1	8 %	61 %
185	Percentage of DoFollow External Links Authority	-0.12	30	12	73 %	69 %
186	Uses Schema breadcrumblist Other	-0.12	1	1	38 %	64 %
187	Number Of Claimed Brands Other	-0.12	94	3	24 %	72 %
188	Uses JSON-LD serviceType Other	-0.12	1	1	3 %	28 %
189	Is Store Page Other	-0.12	1	1	46 %	67 %
190	LSI Words in H3 Tags Relevancy	-0.12	220	19	46 %	88 %
191	Uses Schema servicetype Other	-0.12	1	1	4 %	28 %
192	Uses Schema service Other	-0.12	1	1	6 %	34 %
193	Uses Schema addressregion Other	-0.12	1	1	17 %	55 %
194	Uses JSON-LD Product Other	-0.12	1	1	7 %	51 %
195	Uses JSON-LD price Other	-0.12	1	1	4 %	37 %
196	Uses Schema postaladdress Other	-0.12	1	1	18 %	57 %
197	Uses Schema price Other	-0.12	1	1	5 %	38 %
198	Uses JSON-LD addressLocality Other	-0.12	1	1	16 %	60 %
199	Uses Schema addresslocality Other	-0.12	1	1	18 %	57 %
200	Uses Schema url Other	-0.12	1	1	54 %	62 %

Measures 140722 SEO Factors

139000 Built-In SEO Factors

130088 On-page SEO Factors

8912 Google Maps SEO Factors for Local SEO

1722 SEO Factors from APIs

147 API SEO Factors for off-page SEO like backlinks and referring domains.

1575 Technology Stack SEO Factors

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TOP SEO Factors for 2025-05 previous